Event status: unconfirmed [?]

Unconfirmed earthquake or seismic-like event: 22 mi west of Nashua, Hillsborough County, New Hampshire, USA, Oct 10, 2021 11:24 am (GMT -4) -

I felt this quake
Unconfirmed earthquake or seismic-like event: 22 mi west of Nashua, Hillsborough County, New Hampshire, USA, Oct 10, 2021 11:24 am (GMT -4)
10 Oct 15:35 UTC: First to report: VolcanoDiscovery after 11 minutes.
I felt this quake
I didn't feel it
Date & time: Oct 10, 2021 15:24:21 UTC -
Local time at epicenter: Sunday, Oct 10, 2021 11:24 am (GMT -4)
Magnitude: 3.8?
Depth: 50.0 km
Epicenter latitude / longitude: 42.76524°N / 71.90485°W (Hillsborough, New Hampshire, United States)
Antipode: 42.765°S / 108.095°E
Nearby towns and cities:
5 km (3 mi) WNW of New Ipswich (pop: 5,280) --> See nearby quakes!
22 km (14 mi) NNW of Fitchburg (Massachusetts) (pop: 40,500) --> See nearby quakes!
29 km (18 mi) NNW of Leominster (Massachusetts) (pop: 41,600) --> See nearby quakes!
35 km (22 mi) WSW of Merrimack (pop: 26,700) --> See nearby quakes!
36 km (22 mi) W of Nashua (pop: 88,000) --> See nearby quakes!
36 km (22 mi) ESE of Keene (Cheshire County) (pop: 23,300) --> See nearby quakes!
45 km (28 mi) SW of Manchester (pop: 110,200) --> See nearby quakes!
58 km (36 mi) SSW of Pencook (pop: 42,600) --> See nearby quakes!
83 km (51 mi) WNW of Boston (Massachusetts) (pop: 667,100) --> See nearby quakes!
610 km (379 mi) NE of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 14.8°C (59 F), humidity: 83%, wind: 2 m/s (4 kts) from ESE
Primary data source: VolcanoDiscovery
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User reports for this quake (1620)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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New Ipswich / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Heard a loud bang, like an explosion which reverberated around the woods. Slight shaking - almost like the sound waves from the noise were hitting the house. | 31 users found this interesting.  
  • Baldwinville, ma- was in our sunroom at the time and definitely heard a loud bang-almost like a Canon shot-felt nothing though! Wow!
  • Was putting on the third hole at Candia Woods and heard a loud, deep explosion off in the distance. Seemed west of Manchester. No shaking felt. Missed the putt.
Manchester / not felt : The ground did not shake. It sounded like a huge explosion from far away. You could feel it deep inside your chest. Almost like a huge bomb going off. It scared the hell out of us. This was a meteor shower weekend. Maybe one got through. Just a thought. B | 21 users found this interesting.  
  • Someone on a different thread suggested maybe a bolide. Possible given the large area that heard/felt this.
Weare, nh / not felt : Was outside heard loud crack and then rumble like thunder. Lasted about 20 seconds | 14 users found this interesting.  
  • Was on my camper heard a bang than felt a shake
  • It did not last 20 seconds
Weare, nh / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Mostly sound: a sharp and very loud cracking explosion sound followed by thunder like rumbling. The sound was very much like a cannon echoing off the hills. | 13 users found this interesting.  
  • Exactly! Here in Weare as well
  • Exactly! Here in Weare as well
Rindge nh / Light shaking (MMI IV) / single vertical bump / 1-2 s : Sounded like some one hit my house and the house shook alittle. Husband heard it outside | 13 users found this interesting.  
Phillipston, MA / Light shaking (MMI IV) / single lateral shake / 2-5 s : Felt like a boom | 12 users found this interesting.  
  • Heard a loud boom. Didn’t feel any shaking. Was outside in apple orchard.
Barnstead NH / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Loud “explosion “ sound followed immed by smaller booms | 12 users found this interesting.  
  • Barnstead Parade, shook house and windows, loud , vibrating boom.
New Boston / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Loud bang and then 2 seconds of rumbling. Thought a tree had fallen on my house, but them shaking lasted a bit to long for just an impact. | 11 users found this interesting.  
  • Sorry to be piggybacking here. I became interested in this incident in NH from the NYT article yesterday Oct 11, 2021. I'm adding more to what I added about the mid-October 2020 incident in Minneapolis. After looking at a text msg that I sent a friend about this last year and looking at dates, the incident occurred Sunday Oct 11, 2020. According to what I relayed in the text msg, after I asked if it was thunder and said it sounded like a bomb, my husband said, that's strange that there wasn't any lightning. The tree branch that split and the top of it that fell had downed a telephone line. Consequently, the landline phone didn't work, but the base station for the wireless handsets no longer worked, that is, no longer was able to get power from the outlet and any other other outlet in the house, which makes me assume there was an electrical surge that damaged the base station ... caused by lighting? No other electrical items plugged in outlets in our house were damaged. Talking to my husband about this just no
  • Just want to share experience from mid-October last year (2020) in Minneapolis MN. Around midnight there was a thunderstorm, thunder and lighting, and then a deep loud boom. I turned to my husband and asked if that was thunder. Then I said, "That didn't sound like thunder, it sounded like a bomb." And it sounded like it came from the street at the nearest intersection in front of our house. The next day we discover a very large branch from a tree in our backyard cracked/split and the top of the branch hit the ground, luckily not our house. The entire tree did not fall and the large branch itself did not fall to the ground. So I can't imagine that the top of the branch hitting the ground would have created that loud deep sonic boom. I suppose it was a lightning strike that created that deep loud boom sound.
Baldwinville, MA / Light shaking (MMI IV) / 5-10 s : Loud explosion noise shook the house and rattled things on the walls. Dog was pacing before sound and after. | 8 users found this interesting. (reported through our app)  
  • Thank you for recognizing your doggies abilities and reporting them to us !!
03461 / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Sounded like a gun shot then a huge boom of thunder that shook the ground | 8 users found this interesting.  
New Boston, NH / Light shaking (MMI IV) / 2-5 s : Felt like someone set off a canon nearby (they do that here). Shook the walls and widows as well as the desk and chair where I was working. | 7 users found this interesting.  
Bow, nh / Light shaking (MMI IV) / 1-2 s : Felt like an explosion or a sonic boom, not an earthquake | 7 users found this interesting.  
  • Wondering what the heck would of done that a Comet.?
Deeding nh / not felt : At approximately 1130 am I heard a thundering sound in the sky . It sounded like a thunder clap that lasted approximately 15 seconds. It also sounded like a jet plane low in the sky, but it started suddenly and ended abruptly after approximately 150 secon | 5 users found this interesting.  
Mason, Hillsborough, New Hampshire (14.7 km SE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Like a shotgun, but longer and deeper, like you could feel a low frequency rumble through your body. Nothing shook, but we were at the falls and discussed that maybe ahuge boulder fell, or jokingly an earthquake. | 4 users found this interesting.  
  • Yes, heard it in Lyndborough
Athol Ma / Very weak shaking (MMI II) : We heard what sounded like thunder | 7 users found this interesting.  
winchendon, ma / Weak shaking (MMI III) / rattling, vibrating : Mainly loud boom with a little shaking. Enough to check house if something hit it | 6 users found this interesting.  
Concord, NH at home sitting at dining table. Husba / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Light shaking. Sitting at dining table with husband. Thought perhaps a large tree had fallen. A muffled boom, then rattling. We both got up, he went out the black door and. I went out the front. We both came back inside with nothing to report. | 6 users found this interesting.  
Keene / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Not sure what it was, but heard what sounded like a big explosion - really deep boom type noise. The sound vibrated for a while and our dog started barking. My husband asked neighbors and they all heard and felt it too. My sister, in Brattleboro, Vermont | 6 users found this interesting.  
Milford NH (21.2 km ENE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s : As if a very large tree impacted the ground. | 6 users found this interesting.  
  • I heard a loud boom like something blowing up
Peterborough / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Very loud explosion type noise and small shock wave | 6 users found this interesting.  
New Boston / Moderate shaking (MMI V) / single vertical bump / very short : We experienced a single loud “boom”. Our house shook. I thought something upstairs fell, in what felt to be a vertical ceiling to floor motion. | 6 users found this interesting.  
Winchendon, MA / Light shaking (MMI IV) / 1-2 s : It sounded like a huge explosion and "Boom!" It felt like a car had hit the house. It was sudden, loud, and then nothing. Went outside to check property for accident. Nothing. Social media has lit up all over Northern Worcester County and Western Mass, an | 6 users found this interesting.  
  • Heard at Hyde Park Drive.
Temple, nh / Weak shaking (MMI III) / 5-10 s : Large sound like a propane tank explosion. | 6 users found this interesting.  
  • Fact: I live in temple and there was not 5-10 seconds. 1-2 seconds is the reality you failed to divulge.
Chester NH (64.2 km ENE of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 2-5 s : Heard a low rumbling and then a loud sound like an explosion. We also felt mild shaking in the house for a few seconds. | 3 users found this interesting.  
Jaffrey, Cheshire, New Hampshire (11 km WNW of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s : I was working in the driveway heard what sounded like a very large explosion with ground rumble as well. | 3 users found this interesting.  
Hubbardston Mass. / Very weak shaking (MMI II) / single vertical bump / very short : Was in my house heard a fast boom and doors rattled | 5 users found this interesting.  
  • Hubbardston, same report ,but more like sonic boom ,no rumble
Dunbarton nh / not felt : Loud boom but did not feel any shaking | 5 users found this interesting.  
Bow, NH / Very weak shaking (MMI II) / single vertical bump / very short : Heard loud boom and mild shake. | 5 users found this interesting.  
Bow / Light shaking (MMI IV) / complex motion difficult to describe / 2-5 s : I thought a tree had fallen on the house. Very loud boom. House shook. | 5 users found this interesting.  
Milford, NH (19.1 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s : Felt like a vehicle hit my home | 4 users found this interesting.  
South Gardner, MA (26.2 km SSW of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s : Was outside and heard a boom, like a very large explosion a long distance away. | 4 users found this interesting.  
  • Same plus felt the shake. I'm by the elm street School big chair
  • Same I’m on the other side of Gardner templeton side
ashburnham, ma 01430 (8.5 km SW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / very short : A vibration. Sounded like an explosion. | 4 users found this interesting.  
Concord, nh 03301 / not felt : We heard the quake. A booming sound.it sounded like a big object had suddenly fallen. No shaking, however. | 3 users found this interesting.  
Temple, Hillsborough, New Hampshire (10.8 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 2-5 s : Sounded as if something big fell on the roof! I actually went outside and inspected ! My neighbor did the same thing! | 2 users found this interesting.  
Brookline,NH / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : It was like a rolling "BOOM", very unique sounding | 4 users found this interesting.  
Weare, NH (34.7 km NNE of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s : Sounded/felt almost like a cannon. One loud boom and another smaller one a few seconds later. Security cameras shook. | 4 users found this interesting.  
Amherst / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : I was outside. I thought it was somebody setting off a large explosion that then lingered for several seconds | 4 users found this interesting.  
Lyndeborough, NH / Very weak shaking (MMI II) / very short : Loud boom and house shook | 4 users found this interesting.  
TEMPLETON MA / Light shaking (MMI IV) / 2-5 s : Yes and heard it | 4 users found this interesting.  
Bedford, NH / not felt / vibration and rolling / 15-20 s : Sounded like sonic boom followed by rumbling - vibration of ground | 4 users found this interesting.  
Hiking purgatory falls lyndeborough nh. / Light shaking (MMI IV) / single lateral shake / 1-2 s : Sounded like a sonic boom but the ground shook for a second or two. | 4 users found this interesting.  
Temple, Hillsborough, New Hampshire (6.8 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : I thought it was some kind of explosion | 3 users found this interesting.  
Winchendon, Worcester, Massachusetts (14.5 km SW of epicenter) [Map] / not felt : Like something big fell outside. More of a noise then feeling it. Boom sound. | 3 users found this interesting.  
  • Yes! Same. We are on Krantz Rd in Winchendon and def heard a loud smash/boom/crash like something very large fell. It was not sharp but like muffled but very loud and strong and large. We were perplexed and it had maybe a very light shake but more like a sensation of some sort. We figured it was single and awkward lightning strike but it made no sense really.
Manchester, Hillsborough, New Hampshire (46.7 km NE of epicenter) [Map] / not felt : Heard a loud boom | 3 users found this interesting.  
Center Barnstead NH (87.2 km NE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : It sounded like something heavy fell on the second floor of my house | 3 users found this interesting.  
Indianapolis, IN / not felt : It wasn't a quake but an extremely loud BOOM! Early in the morning. So loud it scared me and woke me up. My neighbor called to see if I knew what that noise was. I didn't. | 2 users found this interesting.  
Dunstable, Middlesex, Massachusetts (36.6 km ESE of epicenter) [Map] / not felt : Hiking on a hill in Westford MA heard a loud boom, like a cannon. Didn’t feel it in the ground but heard it | One user found this interesting.  
Hudson, Hillsborough, New Hampshire (38.2 km E of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s : Was outside. Dogs went wild barking. Felt concussion and heard a loud boom to the north. Thought it was an explosion. | One user found this interesting.  
Manchester, New Hampshire / Weak shaking (MMI III) / single vertical bump / 1-2 s : I thought a tree fell outside | 3 users found this interesting.  
Townsend,Ma / not felt : In state forest in Townsend and we heard a loud boom oddly i felt motion sickness … during the walk / hike we were on … maybe slight movement caused it , who knows …. we coul mot figure out what the sound was but it souned something akin to a transf | 3 users found this interesting.  
hollis,nh / not felt : heard loud explosion like noise | 3 users found this interesting.  
Nashua NH (33.4 km E of epicenter) [Map] / not felt / 2-5 s : We heard a loud boom. Didn't feel any shaking. We hear rumblings every now and then. I would describe it like thunder in the distance or like when they use explosives when blasting ledge for construction. It's been happening for a few years every now and | 3 users found this interesting.  
NASHUA / Light shaking (MMI IV) / single vertical bump / very short : Seemed like and explosion. One loud boom and the house made creeking rattling noise. All Three of us felt the vibration. | 3 users found this interesting.  
New Boston / not felt : I heard a loud boom around 11:30am while in bed, sounded like someone fell down the stairs or a bunch of lumber fell off a truck. Didn’t feel any vibrations or windows rattling, just heard it. Initially thought it was a gas explosion since we’ve had t | 3 users found this interesting.  
New Boston, NH / Moderate shaking (MMI V) / single vertical bump / 1-2 s : Explosion | 3 users found this interesting.  
Mont Vernon nh / not felt : Heard a loud deep sounding boom, | 3 users found this interesting.  
New Boston, NH / not felt : Heard huge crack/bang like something falling | 3 users found this interesting.  
Milford, NH / not felt / single vertical bump / 1-2 s : I heard a very large boom. I was outside walking my dig and he was very scared. He jumped. I only felt the boom, but no shaking. | 3 users found this interesting.  
Bow, nh / Very weak shaking (MMI II) : Heard loud bang | 3 users found this interesting.  
Bow / Moderate shaking (MMI V) / single vertical bump / 1-2 s : Heard an unusual bump on the back of my house small vibration then silence moderate | 3 users found this interesting.  
Athol MA / not felt / 1-2 s : Just a loud boom | 3 users found this interesting.  
Milford / not felt : Very loud boom heard while indoors nothing felt | 3 users found this interesting.  
Merrimack Nh / Very weak shaking (MMI II) / very short : Heard loud boom. | 2 users found this interesting.  
Penacook, NH 03303 / not felt / very short : Heard a huge boom like a bomb went off and felt a quick “aftershock” type jolt | 2 users found this interesting.  
New Boston / Light shaking (MMI IV) / 2-5 s : I heard it more than I felt it. I was in my backyard. My husband felt and heard it from inside our house. | 2 users found this interesting.  
Dunbarton / Very weak shaking (MMI II) / complex motion difficult to describe : It sounded like an explosion one singular boom I was on a second floor and the room windows shook almost as if any more power and they’d Shader The band itself is as a strong jolt I immediately thought something massive like a bomb or gas station blew u | 2 users found this interesting.  
Deering New Hampshire (48.9 km N of epicenter) [Map] / Moderate shaking (MMI V) / single lateral shake / 20-30 s : The loud boom was first, then midway in the boom the shaking began. The booming continued. The dirt floor of the indoor horse area shook under my feet. The roof groaned as the booming continued. Witnessed by dozens of people at the Spinner Farm. | 2 users found this interesting.  
At home on first floor living room - our home has / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : It sounded like a very large explosion like I would imagine a residential gas explosion within our town. It felt/sounded like there was a degree of percussion on our roof. | 2 users found this interesting.  
Bedford, NH / Weak shaking (MMI III) / rattling, vibrating / very short : We were hiking in Bedford, NH at Pulpit Rock and heard a very powerful, distant, explosion followed by a short rumbling. | 2 users found this interesting.  
22 Dunlop dr Bedford nh 03110 (35.9 km NE of epicenter) [Map] / not felt : Heard a large boom noise. Explosion like. So loud and rich I was expecting a shock wave behind it. Nothing came though. Was out walking my dog with my wife. It appeared to come from the north north west. | 2 users found this interesting.  
Templeton Massachusetts / Very weak shaking (MMI II) / very short : I heard a load boom - sounded like a cannon and my house shook. I looked around the house to see if a tree fell - but there was nothing. | 2 users found this interesting.  
Woods of Westminster / not felt : No, just heard it | 2 users found this interesting.  
Concord (60.2 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Heard a loud boom then felt my deck rattle and heard my windows rattle. It was a quick shutter | 2 users found this interesting.  
Weare, nh / Light shaking (MMI IV) / 1-2 s : Heard a double boom, felt the shake. Security cameras at home in Ashby recorded the noise | 2 users found this interesting.  
Canterbury, 03224 / not felt : loud boom | 2 users found this interesting.  
Weare / Weak shaking (MMI III) / rattling, vibrating / 20-30 s : Loud bang, rumbling and vibrations | 2 users found this interesting.  
Center Barnstead NH / not felt : Didn’t feel it | 2 users found this interesting.  
Ashby, MA / Weak shaking (MMI III) / single vertical bump / very short : Heard (and felt) a couple of loud "booms." Felt as though something very heavy fell outside. | 2 users found this interesting.  
Townsend, MA / Very weak shaking (MMI II) / rattling, vibrating / 15-20 s : Thought it was a helicopter going by | 2 users found this interesting.  
Weare no / not felt : I heard the bang though | 2 users found this interesting.  
Lewis lane bow my / Very weak shaking (MMI II) / single vertical bump / very short : Deep boom | 2 users found this interesting.  
New Ipswich / not felt : Loud boom...bang | 2 users found this interesting.  
New Ipswich, NH / Very weak shaking (MMI II) / rattling, vibrating / 20-30 s : There was loud boom at the same time as the shaking. | 2 users found this interesting.  
Home Depot Concord NH 03301 / Very weak shaking (MMI II) / single vertical bump / very short : A massive boom, felt like a single explosion. | 2 users found this interesting.  
barnstead nh / Very weak shaking (MMI II) / 1-2 s : standing outside sounded like an explosion then felt the percussive wave in my ears | 2 users found this interesting.  
Concord NH / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : Felt like a truck was dropped off onto a street and rolled along the road. | 2 users found this interesting.  
Peterborough NH / Light shaking (MMI IV) / 1-2 s : brief but sharp shudder in our house. | 2 users found this interesting.  
Baldwinville ma / Weak shaking (MMI III) / single vertical bump / 1-2 s : Loud bang quick shake | 2 users found this interesting.  
  • Dublin, NH/. Prolonged rumble resembling very loud and very close thunder. Did not feel shaking.
Manchester NH (46.1 km NE of epicenter) [Map] / not felt : Myself and 2 other people in the city heard a boom or a bang. No idea what it was. | 2 users found this interesting.  
437 Forest Rd Lyndeborough NH (15.9 km NNE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / very short : Doors and windows rattled. Thought it was a lumber truck accident. | 2 users found this interesting.  
New Boston NH / Light shaking (MMI IV) / single lateral shake / very short : Literally thought someone crashed into the side of the house | 2 users found this interesting.  
Ipswich Hamlet, Worcester, Massachusetts (57.3 km SSE of epicenter) [Map] / not felt : Nothing | One user found this interesting.  
Westminster, Massachusetts (20.9 km S of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s : Felt like a small boom. | One user found this interesting.  
Templeton, Worcester, Massachusetts (26.8 km SSW of epicenter) [Map] / not felt : Heard a loud boom or explosion sound. Thought vehicle hit house. Templeton | One user found this interesting.  
Athol, Worcester, Massachusetts (31.2 km SW of epicenter) [Map] / not felt : nothing, neighbors say they heard explosion and felt ground shake | One user found this interesting.  
Mason, Hillsborough, New Hampshire (12.2 km ESE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Items fell off desk | One user found this interesting.  
near Mason, Hillsborough, New Hampshire (16.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Sounded like a distant large bomb | One user found this interesting.  
Dublin, Cheshire, New Hampshire (19.9 km NW of epicenter) [Map] / not felt : I HEARD IT, DID NOT FEEL IT. It was more than a boom, it kinda rumbled. | One user found this interesting.  
  • In Dublin as well - it definitely rumbled/rolled for several seconds. I thought it was odd sounding thunder at first.
Franklin / Very weak shaking (MMI II) / single vertical bump / 1-2 s : I didn't so much feel it as I heard it. A kinda ' boom ' sound with a slight rattle for 1-2 seconds at most. Was this the mysterious sound heard that day? I don't know. But it makes sense 7nless with all the fireworks in my hood, I heard something else. B  
Keene nh / not felt : Heard rumbling for about 8-10 seconds | One user found this interesting.  
Mount Monadnock / not felt / 1-2 s : Heard boom, thought it was thunder | One user found this interesting.  
Knoxville, TN / not felt : We used to live in New Boston, N.H. and left there many years ago – we didn’t feel anything at all where we are now. I see where the fire chief went to church that morning and so, said he was prepared – although I’m uncertain of what he was prepar | One user found this interesting.  
Deb Budney Peterborough NH / Very weak shaking (MMI II) / complex motion difficult to describe / 15-20 s : It was a load boom followed by a rolling thunder sound but, not like any thunder I ever heard before. It felt like when they launch rockets and the sound you can almost see it coming at you and then it hits you. Very strange! | One user found this interesting.  
  • I'm in hopkinton massachusetts and my description a few lines up above from your description is the same as what you have described!
Amherst nh / Very weak shaking (MMI II) / single vertical bump / 2-5 s : I was walking my dog on Chestnut Hill Amherst nh and heard a loud boom, like a bomb hitting the earth with an after effect second boom. My fear was an Atomic bomb | One user found this interesting.  
Nashua, NH; In the shower (34.3 km E of epicenter) [Map] / not felt : Husband cooking, no reaction from dogs either. | One user found this interesting.  
Hancock, NH (25.7 km NNW of epicenter) [Map] / not felt : I was outside and heard a long, low booming that I thought at first was thunder. Then I wondered it it was a fast-moving plane or military aircraft. It sounded like it was coming from the sky, though I never saw anything. I am not sure if it was a quake o | One user found this interesting.  
Manchester, nh just NW of Derryfield Park. / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Heard a loud bang,then sounded like something hit the side of the house again and again. | One user found this interesting.  
Nashua / not felt : I was on a motorcycle ride on my 94 HD FLHTC never noticed it! | One user found this interesting.  
  • Cool knees in the breeze..
center barnstead / not felt : did not feel it but was outside and heard a big boom. | One user found this interesting.  
Barnstead / Weak shaking (MMI III) / single lateral shake / 1-2 s : Loud boom. Abrupt hard shock to the house. Left a couple lights moving. Dogs freaked out. | One user found this interesting.  
Concord, New Hampshire (58.8 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Sounded like a loud truck going by, but no trucks passed. | One user found this interesting.  
Fitchburg, Worcester, Massachusetts (14.8 km S of epicenter) [Map] / not felt : I was outside and heard a loud boom. It was from the north.  
New Ipswich, Hillsborough (1.8 km NNE of epicenter) [Map] / not felt : Didnt feel it  
near Milton, Chittenden, Vermont (231 km NNW of epicenter) [Map] / not felt
Nashua, Hillsborough, New Hampshire (35.1 km E of epicenter) [Map] / not felt
Springvale, York, Maine (118.4 km NE of epicenter) [Map] / not felt
Manchester, Hillsborough, New Hampshire (46.2 km NE of epicenter) [Map] / not felt : I was sleeping.  
07204 (303.9 km SW of epicenter) [Map] / not felt
West Warwick, Kent, Rhode Island (122.1 km SSE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Agawam, Hampden, Massachusetts (98.7 km SW of epicenter) [Map] / not felt : Nothing was felt here in agawam, Ma.  
Jaffrey, Cheshire, New Hampshire (8 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s : Noise like thunder. Very brief. Ground vibration. Thought it was from the load noise  
Dublin, Cheshire, New Hampshire (21.4 km NW of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 2-5 s
Bedford, Hillsborough, New Hampshire (34 km NE of epicenter) [Map] / Very weak shaking (MMI II) / very short : Sounded like a large bang on my upper floor  
Milford, Hillsborough, New Hampshire (26.3 km ENE of epicenter) [Map] / not felt : A heard a boom and rumble  
Antrim, Hillsborough, New Hampshire (23.4 km NNW of epicenter) [Map] / not felt : I heard the constant and lasted long thunder like sounds. I was at Shire rd in Hancock.  
Deering, Hillsborough, New Hampshire (34.7 km NNE of epicenter) [Map] / not felt : Heard a loud boom, had headphones on while outside in the orchard.  
Goffstown, Hillsborough, New Hampshire (38.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short
Hudson, Hillsborough, New Hampshire (39.1 km E of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s : Just shook the house as if they were blasting rock in a quarry.  
Manchester, Hillsborough, New Hampshire (46.5 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : Loud “boom” and heard the house creak from the little jolt  
Manchester, Hillsborough, New Hampshire (47.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short
Temple, Hillsborough, New Hampshire (11.9 km NE of epicenter) [Map] / not felt
Contoocook, Merrimack, New Hampshire (45.5 km N of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : The sound seemed to roll similar to thunder with the shaking  
Hampstead, Rockingham (63.7 km E of epicenter) [Map] / not felt
Brookline, Hillsborough, New Hampshire (19.9 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Felt like a shock wave. Thought something fell into house.  
Templeton, Worcester, Massachusetts (33.1 km SW of epicenter) [Map] / Light shaking (MMI IV) : Heard a very loud BOOM; thought somebody crashed their vehicle nearby; rattled me and the dogs!  
Pencook, Condado de Merrimack, Nueva Hampshire (55.8 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s
Petersham ma (38.3 km SW of epicenter) [Map] / not felt : Loud "sonic boom" sound (reported through our app)  
Chichester, Merrimack, New Hampshire (65.6 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Weare, Hillsborough, New Hampshire (43.5 km NNE of epicenter) [Map] / not felt / single vertical bump / 1-2 s
Francestown (27.5 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s : Loud boom...thought it was an explosion.  
Weare, Hillsborough, New Hampshire (45 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / 5-10 s
Merrimack NH 03054 / not felt : Didn’t even know anything happened, just am curious if it did as I’m very close to Nashua Literally I live within a half mile from Nashua ! Also very interested if so also would like to know what is was if they don’t know for sure!  
Temple, NH / Weak shaking (MMI III) / rattling, vibrating / very short : Loud but quick boom and vibration, like something being dropped by construction machinery. Felt and sounded like a big wheeler driving by.  
Westminster MA / Very weak shaking (MMI II) : Rumble like explosion.  
Nashua / not felt
Hollis NH / Weak shaking (MMI III) / single vertical bump / 1-2 s
Manchester, NH / not felt
Bedford, NH 03110 / not felt : I heard a loud boom but did not think it was an earthquake. I may have felt a shudder? I attributed it to be noise from a construction vehicle but it was really loud  
03109 / not felt : Didn’t feel anything  
Weare nh / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : My kids and I were in the front yard and hard the loudest bang ever and the ground started shaking and vibrating for about 5 to 10 seconds. I turned and looked at my kids and there faces were in complete shock and said mom was that an earthquake and they   
Spofford nh / Light shaking (MMI IV) / rattling, vibrating / 20-30 s : There was rumbling like thunder. We heard it over the loud tv and running fan. The vibrations went with the sounds feeling between a semi driving trough our livingroom at 65 and the grand finally at a fireworks show. This lasted for 20-30 seconds.  
enfield new hampshire (99 km N of epicenter) [Map] / not felt : felt nothing  
GOFFSTOWN (38.2 km NE of epicenter) [Map] / not felt : We heard, off in the distance, a boom. Like an explosion boom, not like a thunder boom.  
Concord, NH / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Heard and felt it. Thought they were doing blasting down the road, as they’ve done before (constructing on/around rocky environment, so they’d use dynamite.) But then I remembered, they usually set off their beep/alarm before hand to warn others. This  
Dunbarton nh (47.5 km NNE of epicenter) [Map] / not felt : Windows light rattle but not the ground it was like an explosion  
Merrimack, NH on Souhegan River..really loud explo / not felt : Very loud explosion around 11:30am. (We live on the Souhegan river) It was strange..no Police or Fire sirens heard.  
Sanford maine / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Weak shaking  
Waltham Massachusetts / Weak shaking (MMI III) / single vertical bump / 2-5 s : It felt like it does when they do blasting nearby your neighborhood , bit I could tell it was slightly different. I side in aftershock from disturbing faults due to too frequent blasting, in our new england area.  
Weare, NH (34.8 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s : Was in a truck and it felt /heard like a cannon had gone off  
Weare, NH (39.5 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short
Deerfield, NH 03037 / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Was out walking in the woods and heard very loud boom. Thought it might be thunder but it was not. Some minimal shaking  
Baldwinville (22.5 km SW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Loud thunder-like noise  
Nashua, NH / not felt
new boston / not felt : loud boom for 1 second  
Milton / not felt
HOLLIS / Very weak shaking (MMI II) / single vertical bump / very short
Fitchburg ma / not felt : In northern Fitchburg Ma. Heard a loud boom Came from a northern direction  
Concord, NH / Very weak shaking (MMI II) / very short : We heard a very loud boom; we were outdoors and stopped what we were doing to ask each other, “What was that??”  
Hudson NH / not felt
03235 Franklin NH / not felt
100 Narrow ln phillipston ma 01331 / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Heard a loud boom and felt what I thought was my husband dropping something really loud and hard in the house  
weare, nh / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
Brookline / Weak shaking (MMI III) / 10-15 s : Was upstairs in bedroom and it sounded like a low flying transport plane was flying over head /or within visible range. Almost went outside to try and see it. It passed within 10-15 seconds.  
farmington,nh (98.2 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / very short : Heard loud boom like noise and shake of doors.rattle of doors  
Acton, Maine (115 km NE of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 5-10 s : My wife and I were outside we heard a rumbling that got louder over the duration of time. It was accompanied by vibrations you could feel in the ground. I immediately said that was an earthquake. I pointed to the south west.  
New Boston, NH (36.1 km NE of epicenter) [Map] / Very weak shaking (MMI II) / complex motion difficult to describe / 5-10 s : Loud 'boom' that then rolled for up to 10 seconds; it initially sounded like someone had set off a cannon.  
Shrewsbury MA / Very weak shaking (MMI II) / 1-2 s : We felt a brief vibration - like a car door shutting next door that would cause the window to shake. We could not find any reason for it, but me, my husband and the dog all noticed it and walked around to investigate.  
Port Huron MI (873.5 km W of epicenter) [Map] / Very weak shaking (MMI II) / complex motion difficult to describe / very short : Okay I live in a completely different state and my husband and I heard and felt this large boom@ I find it kind of strange that this popped up today!  
MILFORD / not felt / rattling, vibrating / very short
Penacook / Light shaking (MMI IV) / vibration and rolling / 20-30 s : I felt it on the floor felt like someone was moving the floor  
Dublin, NH / not felt : I heard a long rumbling sound in the sky in Dublin, NH, similar to rolling thunder or heavy snow falling off a roof. It lasted for approximately 5-8 seconds - it definitely struck me as odd but I assumed it was a weather event. Meteor or UFO? ;)  
Wellesley, MA / not felt
Walking @ Benson Park, Hudson NH / not felt : Did not feel anything. Heard what sounded like a loud explosion  
Brattleboro, VT / not felt
Royalston MA / Weak shaking (MMI III) / rattling, vibrating / 10-15 s : Very weak shaking  
Pepperell ma / not felt
Wilton NH / Very weak shaking (MMI II) / rattling, vibrating
Hooksett / not felt
Nashua / not felt
Bedford, NH / not felt : I was outsideand heard what sounded like a huge explosion. Very loud but i didn't feel any shaking.  
Manchester, NH / Weak shaking (MMI III) / single vertical bump / very short : Weak shaking felt indoors while sitting. My baby's empty bouncer chair jumped by itself and knocked down a wall mounted cat brush, which made me think it was a quake and confirmed here later.  
Worcester mass (52.6 km S of epicenter) [Map] / not felt / rattling, vibrating / very short : Heard loud boom  
Peterborough NH / not felt : I did not feel it. Just heard the loud and long boom  
Antrim NH / not felt : I heard a rumbling boom that went on for 4-5 seconds. I didn’t feel any shaking. I thought it must be thunder. I commented to my sister but then no rain followed.  
HANCOCK / Very weak shaking (MMI II) / 15-20 s
BELCHERTOWN, MA / not felt : My wife and I heard a loud boom but did not feel any shaking. We were both sitting in our house.  
Concord (57.6 km NNE of epicenter) [Map] / not felt : I was asleep after a long night shift  
Barrington / Weak shaking (MMI III) / vibration and rolling / 10-15 s : Vibration and boom felt - thought it sounded like a jet plane accelerating overhead but was over before it ramped up fully. Actually went outside to look as we don't usually have big planes fly over our area.  
Hillsborough (39.4 km N of epicenter) [Map] / not felt : While on my back porch looking to the west at a dark cloud, I heard rolling thunder which sounded like an extremely loud Harley Davidson motorcycle. It was a horizontal slow moving rumbling sound traveling to the southwest ending with a loud boom. My thou  
Leominster MA / not felt : Nothing  
Milford NH / not felt : Nothing. Normal day  
Haverhill ma / Very weak shaking (MMI II)
Sterling / not felt
At home; Amherst ,NH / not felt / very short : I didn’t “feel” it as much as I heard a loud boom. It sounded like an explosion. I did not feel any tremors or vibration but the noise was very loud. Enough that I went outside to see if there was smoke from an explosion.  
Mont Vernon NH (23.2 km NE of epicenter) [Map] / not felt : Town Chatter on Facebook. Others heard loud noise. I heard nothing.  
Merrimack / Weak shaking (MMI III) / single lateral shake : Felt like a truck rumbling by   
Milton, NH (104.5 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Very weak shaking  
Marlborough New Hampshire / not felt : Did not necessarily feel anything but heard a loud rumbling overhead, similar to thunder. However, the sounds lasted longer than a thunder clap normally does. I wondered if it was a plane breaking the sound barrier?  
North Andover MA / not felt : Heard a loud boom, I thought it was a firework  
Concord NH / not felt / single vertical bump / 1-2 s : Yes I felt a very dense boom as soon as my mother and uncle left and my father went inside the downstairs bathroom. I would have swore he had fallen but I waited until I heard him moving and eventually forgot the experience until I heard about on the news  
Hollis nh / not felt : A boom in the sky. Sounded like thunder or a sonic boom. Did not feel the ground shake.  
Wyndham New Hampshire / Moderate shaking (MMI V) / very short
Winchendon, Massachusetts / Very weak shaking (MMI II) / single vertical bump / 1-2 s : Just was a loud "boom"  
Amherst / not felt : Heard a loud boom.  
Ashburnham, MA / Moderate shaking (MMI V) / single lateral shake / 5-10 s : We were walking on the train tracks about a half mile before the Cumberland Farms and heard what sounded like the gas station blowing up again coming from the left. We also felt a quick rush move through our chest and feet. Moments later you could also he  
5 Allgrove Ln Wilmington MA 01887 / Light shaking (MMI IV) / rattling, vibrating / 5-10 s
GARDNER Massachusetts / Very weak shaking (MMI II) / rattling, vibrating / very short : Was an explosion sound. A boom that lightly vibrated house  
Milford NH / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Rattling and loud noise  
Townsend ma / Weak shaking (MMI III) / single vertical bump / 1-2 s : Heard a loud impact type noise. Seemed like a downward pressure as my copper chimney cap rang like a bell. I stepped out to see if a tree limb had fallen on the house.  
Nashua NH / not felt
Claremont nh / not felt
Hyannis / Weak shaking (MMI III) : Just loud booming and shaking of the ground. Felt more than fireworks.  
01375 / not felt
New Boston, NH / Weak shaking (MMI III) / single vertical bump / very short : Mostly a boom sound and a quick jolt, like a large tree hit the ground.  
Derry / not felt
Auburn nh / not felt
Augusta, Maine (245 km NE of epicenter) [Map] / not felt
Wilton / Weak shaking (MMI III) / 2-5 s : Felt more like a compression wave than actual shaking. Heard more what sounded like a sonic boom rather than an earthquake. Grew up in southern CA so know what earthquakes feel like.  
Hooksett / not felt
Pelham NH / Weak shaking (MMI III) / 5-10 s : Two very loud explosions within 15 seconds of each other. I saw flash in the sky towards the east after the second bang. I thought a transformer exploded but we never lost power.  
Meredith / not felt : Nothing  
01824 / not felt : Loud bang. Sounded like a firework or huge tree falling  
Rindge NH / not felt : Heard a loud boom. Sounded like a bomb.  
Elmira,New York / not felt
Wilton Nh / Very weak shaking (MMI II) / 1-2 s
Keene, NH (36.5 km WNW of epicenter) [Map] / not felt : If I did it wasn't big enough to note  
Bedford nh / not felt : Felt nothing  
Brenda Loewy 18 Four Seasons Lane, Merrimack, NH 0 / not felt : Didn’t feel anyrhing  
Manchester, nh / Very weak shaking (MMI II) / 1-2 s : Heard it more than felt it. Sounded and felt like a distant large delivery truck  
Pittsfield, New Hampshire / not felt
Athol, MA / Weak shaking (MMI III) / rattling, vibrating : Very loud explosion type sound prior to the shaking.  
Waterboro, ME (129.2 km NE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / very short : Around 11:30am, I heard a single “thump” and slight shake in my house. My dogs barked, and I thought a heavy package had been delivered and set down heavily, or that a tree limb had hit the roof. When I found nothing, I asked my neighbors and they wer  
Henniker (Deering) NH Oxbow campground / Very weak shaking (MMI II) / rattling, vibrating / 15-20 s : First thought: thunder but it was too loud and too long. Second thought: stealth jets flying practice runs. Noise was very loud and scary. Thought maybe a big explosion happened at our campground in Henniker, but it lasted too long. Definite loud prolonge  
Henniker, N.H. / Light shaking (MMI IV) / vibration and rolling / 5-10 s : Heard a loud boom, followed by what sounded and felt like rolling thunder. It did feel and sound like a small earthquake.  
Auburn / not felt : Heard loud bang,like some company was blasting.  
New Boston, NH / Very weak shaking (MMI II) / single vertical bump / 1-2 s : It sounded and felt like something fell on our house. We looked around but saw nothing out of place.  
Dracut Mass (1.8 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / vibration and rolling / 2-5 s : Felt like a jet liner was going to crash. Loud rumble and a rolling sound  
Mason, NH center / not felt : Very loud boom lasting a few seconds. No tremor felt.  
Dover, NH / not felt : Felt and heard nothing  
LEICESTER (61.6 km S of epicenter) [Map] / not felt
Littleton, MA / not felt
Derry NH / not felt
Londonderry, NH (46.3 km ENE of epicenter) [Map] / not felt : I had not felt or heard anything.  
Hopkinton, NH / Moderate shaking (MMI V) / single vertical bump / 5-10 s
Springfield Vermont / not felt : Heard a hell of a boom!!! No idea what it was!!! Was outside on my porch  
Winchendon,ma / not felt : Did not feel or hear anything.  
Peterborough no. I was working in my garden and he / not felt
Hudson, MA / not felt : Heard a loud bang  
01475 / Weak shaking (MMI III) / very short
Ashburnham, MA. / not felt : Did not feel anything. Heard Loud boom.  
Pittsfield, NH / not felt : I just heard a loud boom  
Gardner, MA / not felt : I don’t think I felt anything.  
Windham, NH / not felt
Pepperell MA / not felt : Heard a loud boom  
Londonderry VT (85.6 km NW of epicenter) [Map] / not felt : I heard 2 loud booms. You could feel it in your chest. I thought someone was shooting off a large cannon.  
Bedford NH / Very weak shaking (MMI II) / single vertical bump / 1-2 s : I felt a loud explosion very deep in the ground. Like a sonic boom. Not like a gun or a firecracker. Very low frequency and loud boom with vibration.  
Baldwinville, MA / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Heard a loud boom & felt the house vibrate for a second or two.  
Market Basket in Bedford, NH. / not felt : Did not know, was inside a building and did not feel it. Bordered on Goffstown and Manchester.  
Manchester, nh (42.2 km ENE of epicenter) [Map] / not felt / single lateral shake : I heard a loud boom  
Fitzwilliam / not felt : I was outside and heard 10 or so seconds of rumbling Sunday morning. Sounded like thunder but there were no storms in the area.  
Pelham , NH (48.6 km E of epicenter) [Map] / Very weak shaking (MMI II) : Felt and sounded like a truck coming up the road But went longer then a passing truck. No rattling or damage done.  
Goffstown. I was officiating a youth football gam (37.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s
Lunenburg Mass / Very weak shaking (MMI II) / 15-20 s : Heard loud boom, thought at first it was thunder but continued on & was definitely different than thunder. Was outside & kind of felt vibration on the ground.  
Mont Vernon, NH / Moderate shaking (MMI V) / simple rolling (tilting sideways along one direction) / 15-20 s : Not an earthquake. Felt more like an explosion with reverberations for almost 30 seconds. Latest report is a sonic boom from a meteoroid entering the atmosphere and burning up. It was overcast so no visual confirmation.  
Worcester (57.7 km S of epicenter) [Map] / not felt
Milford NH (19.5 km ENE of epicenter) [Map] / not felt : I was out walking and heard the huge boom like dynamite or Sonic boom. I don't recall any movement because of my speed.  
Hopkinton, NH (53.5 km NNE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 10-15 s
Nashua NH (35.5 km E of epicenter) [Map] / not felt
Chelmsford, MA / not felt : Heard a loud, unexplained boom while walking the dog through the woods.  
Glens Falls, NY / not felt
Farmington, NH 03835 / not felt : A boom, like a moose hitting the backside of the house  
westford ma / not felt
Amherst, NH / not felt
It was around 8:30-9pm Saturday Oct 9, 2021 Two ad / Very weak shaking (MMI II) : Two adult former nurses heard two loud Booms! Thought perhaps fireworks for a Holiday weekend wedding.  
Middleborough, ma / not felt : I felt Nothing  
NASHUA (31.7 km E of epicenter) [Map] / not felt : I heard a very big explosion  
Concord / not felt
ashburnham MA / Very weak shaking (MMI II) / single lateral shake / 1-2 s : i was outside in my yard and unloading my car. as i was taking my bike off of my roof rack i felt like a sideways bump or shift. i thought maybe the car moved but it was off. was weird  
Fall River, Mass 02724 / not felt
Lebanon, PA / not felt
Milford / not felt
Merrimack, NH / not felt : I heard a big boom while outside but didn't feel ground shake  
Mason, NH center / not felt : Very loud boom lasting a few seconds. No tremor felt.  
Newport, NH (69.8 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 1-2 s : I heard it more than I felt it. It was almost like a distant car crash. If my door wasn’t open, I might not have heard it at all. And the movement was the same; very quick, almost a single vibration like something had crashed into the ground next door.   
Pyramids disc golf, Leicester, Ma / Very weak shaking (MMI II) / single lateral shake / very short : We thought people were blasting bedrock and then realized it was Sunday and was highly unlikely. It sounded like a loud Boom and a quick shake. I was with 4 other people who heard and felt it.  
01843 / not felt : My neighbor and her son reported hearing a very loud bang..sounded like a gunshot, around 4am but none reported.  
Rumford, ME / not felt / 2-5 s : I was outside hiking so didn’t really feel it, but I definitely heard something! I asked my friends “ what was that? Did you guys hear that?.”  
ATKINSON / not felt
New boston / Weak shaking (MMI III) / rattling, vibrating / 15-20 s
Winchendon / Weak shaking (MMI III) / very short : I dunno. Felt and sounded like something big crashed or was dropped on the ground  
Athol, MA / Weak shaking (MMI III) / rattling, vibrating : Very loud explosion type sound prior to the shaking.  
Derry, NH / Light shaking (MMI IV) : Was in the first floor living room, there was a loud boom that made every thing in the living room rattle for a few seconds. Dog was sleeping when the boom happened, woke her up, and took off to hide (she's a scaredy cat anyway), after the rattling stoppe  
Winslow Maine (269.4 km NE of epicenter) [Map] / not felt
Manchester / not felt
Gilmanton / not felt
Nashua / Very weak shaking (MMI II) / rattling, vibrating / very short
Farmington, NH / not felt : We heard the boom, and seconds before the boom every dog in the neighborhood sta barking. Sounded just like an earthquake we had about 10 years ago.  
rindge nh / Very weak shaking (MMI II) / very short
21 Pinewood trl concord (57.3 km NNE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / very short : Sounded / felt like a tree fell on our roof  
Ashburnham / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Pepperell, ma / Very weak shaking (MMI II) / very short : Was sitting stationary in car at intersection. Heard sound like minor car accident but there were no cars around.  
Leicester, MA (8.2 km ENE of epicenter) [Map] / not felt : Didn’t feel anything but did hear a boom and thought it was thinder, around 11:30 am on October 10, 2021  
Exeter, RI (140.3 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / very short
Binghamton, New York (334 km WSW of epicenter) [Map] / not felt
Watertown CT / Very weak shaking (MMI II) / very short : Woke me from my sleep, And I felt like I vibrated for a split moment.  
Townsend, MA / not felt
Manchester nh / Light shaking (MMI IV) / rattling, vibrating
Hollis NH / Weak shaking (MMI III) / 2-5 s
Acton, Maine / not felt : Well I don’t know if it was an earthquake or a sudden force of energy that blasted through New Hampshire & Maine but while I was eating my breakfast in the work truck. A sudden energy moved the Orange that was on the counter, it was well balanced and co  
Westfield Massachusetts / not felt
Mountain School Road, Weare, NH / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Heard a very loud explosion-like sound and house shook and rattled a split second after.  
Athol, MA / Weak shaking (MMI III) / rattling, vibrating : Very loud explosion type sound prior to the shaking.  
Bedford (39.6 km NE of epicenter) [Map] / Light shaking (MMI IV) / very short : Heard what sounded like a blast with a ripple like effect while outdoors. Wife indoors felt the house shake  
DERRY / not felt : nothing  
Baldwinville, MA (22.7 km SW of epicenter) [Map] / Light shaking (MMI IV) / complex motion difficult to describe / very short : Heard loud boom (like thunder), and shook the whole house in a manner difficult to describe.  
Bow NH 03304 / Light shaking (MMI IV) / vertical swinging (up and down) / very short
Rye, NH / not felt
Indiana Dunes National Park Chesterton Indiana / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Startled by an extreme loud boom and shaking vibration during this time. Which was extremely odd because I was on a trail 10 at the Indiana Dunes National Park. At first, my thought was how bizarre and wondered where or what had happened if was close by.   
Rindge NH / Very weak shaking (MMI II) / single lateral shake / 1-2 s : 1-2 second boom  
Londonderry / Light shaking (MMI IV) / single vertical bump / very short : Single displacement impulse, felt vertically, very loud sound associated. Everyone stopped what they were doing.  
Boston (83.6 km ESE of epicenter) [Map] / not felt
Smith rd, Jamaica, VT. (68.9 km WNW of epicenter) [Map] / not felt / rattling, vibrating : Heard a loud boom followed by windows rattling.  
Waterboro, ME (129.2 km NE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / very short : Around 11:30am. Heard and felt a single “thump” that rattled the house a bit. Dog barked. I thought a heavy package had been delivered or a tree limb had hit the house, but found nothing. Texted the neighbors but they had been busy and didn’t hear a  
S Berwick Maine / not felt : Hiking in the woods. Heard a loud boom  
Wilton nh / Moderate shaking (MMI V) / 1-2 s : Like a cannon going off in garden  
Winchendon, MA / not felt : Didn’t feel anything perhaps but certainly heard a large, muffled, low frequency, unusual, very strong boom. It was unlike anything I could identify. It wasn’t sharp or cut through the air like lightning or an echo of a close by event. It was strange!  
EAST WAKEFIELD (107.5 km NNE of epicenter) [Map] / not felt
New Ipswich (5.8 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / complex motion difficult to describe / very short : Heard what sounded like an extremely large explosion very far away and overhead. Felt a slight shockwave-like vibration from the west.  
Claremont NH / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Boston, ma (82.7 km SE of epicenter) [Map] / not felt
Bangor maine / not felt : Wife heard the boom. Thought it was airport, but nothing was fly as I checked the app.  
Ghoram / not felt
Weare nh 03281 / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : It was a loud noise and the house rattled.My two dogs starting barking  
Wellesley, MA / not felt : While walking my dog through a meadows surrounded by woods, I heard a single boom, almost like a canon-shot, off in the distance somewhere - but clearly audible. My adult large-breed dog, who is not afraid of fireworks or loud noises, freaked out, ran out  
Dover NH / Weak shaking (MMI III) / rattling, vibrating / very short
Bradford, nh / not felt
Salem, NH / Weak shaking (MMI III) / 2-5 s : Could feel vibration in the floor, like a trembling sensation. No window rattling or things shaking on walls. But definitely something I never felt before - there was no traffic, no truck coming down the street that could account for what I felt. It laste  
Keene nh / not felt
Claremont, Nh / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : I was on the road at the time, but I need to comment... On the night before this happened, there was thundering and strange lightning in the direction, south west of Claremont. In the direction of where this thing came from. Unusual thundering and flashes  
Baldwinville (22.4 km SW of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / very short : Heard a loud boom as of something hit the ground As if a tree had fallen  
Nashua nh / Light shaking (MMI IV) / rattling, vibrating / very short : Windows rattled, following a loud thud like noise. My home is surrounded by trees so it is often hit by falling branches. I thought that was what might have happened until reading the article of something shook NH.  
Bennington Vermont / not felt : Nothing  
Deering nh / Very weak shaking (MMI II) / 5-10 s : Heard the rumble but no discernible shaking.  
Windham (55.2 km E of epicenter) [Map] / not felt
Baldwinville MA / not felt : Felt alittle shake mostly loud boom  
Exeter, nh (82.2 km ENE of epicenter) [Map] / not felt
Hudson NH / not felt : Big boom  
Deering, NH / not felt : Heard the boom. Satellite data shows a flash  
Haverhill MA (64.6 km E of epicenter) [Map] / not felt
Derry nh / not felt : No feeling  
Souhegan Woods Golf Course, Amherst, NH (26.9 km ENE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s : Slight shake, loud low boom sound very distant  
Coventry / not felt
Nashua, NH / Moderate shaking (MMI V) / rattling, vibrating / 1-2 s : Similar to aircraft breaking the sound barrier.  
Acworth. Nh (52.4 km NNW of epicenter) [Map] / not felt : We were outside from 11:20am until after noontime in a quiet area and heard and felt nothing . We had several dogs with us none showed any alertness to something such as a sonic boom, earthquake tremor, or similiar event, and they typically would.  
Amherst NH / Weak shaking (MMI III) / 2-5 s
Hollis nh / not felt : We heard a sonic boom noise  
03053 / not felt : My security cameras recorded an audio "boom"-like noise at 11:24:20 a.m.  
Nashua / not felt : I’m from cali and didn’t feel anything  
Rockingham, VT near Chester (78 km NW of epicenter) [Map] / not felt : We heard a sequence of "booms" that lasted about 10-15 seconds. We thought it was fireworks coming from the next town over, but couldn't find any events listed when we searched online.  
Gardner, MA 01440 / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Honestly, it sounded like an explosion, as if propane truck exploded, but only one loud BOOM. I felt a concussion hit me in my chest, indoors. I was sitting in the garage with door closed when this happened.  
Londonderry / not felt : Did not feel it. It sounded more like a loud thump than an explosion. I thought maybe a plane went down as the airport is only five miles away. I waited for the sound of fire trucks.  
Strafford / Very weak shaking (MMI II) / very short : Thought something heavy had fallen in the house  
Royalston ma (28.7 km WSW of epicenter) [Map] / not felt : House shook Loud Boom  
Nashua nh (35.9 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Manchester, NH / not felt
Bellingham MA (81.8 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s
p, bertozzi wildlife management area / not felt : I heard a loud boom and assumed it was thunder as there was some rumbling sound right after the boom. No further noise after  
03104-5581 (46.8 km ENE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating : More heard it than felt it. It seemed like a jet airplane. We're right in the MHT pattern, so we hear and feel them all the time. But this lasted way too long to be an airplane, and that's what caught my attention. It probably lasted 1 to 2 minutes.  
Joplin, Missouri / not felt
Sutton, NH / not felt
Chichester, NH / not felt / very short : There was a loud boom that sounded like someone or something heavy hit the floor upstairs. There was no continuous shaking, but the boom had kind of a single shock associated with it. A week or two before, there was a very similar sound, but not as loud o  
Center Barnstead N.H. / Very weak shaking (MMI II) / 1-2 s
Middleboro, MA / not felt
Templeton,MA / Very weak shaking (MMI II) / very short : It was really the loud boom we heard that caught our attention while camping at Lake Dennison recreation area. Very loud, and the ground shook for a very short time.  
Tiltpn, NH / not felt
Ashby, MA. My / Light shaking (MMI IV) / single vertical bump / very short : There was a loud bang almost like an explosive sound at the same time I felt like a bump. I thought something like a tree fell close by.  
Lunenburg, MA / not felt
. Westminster,ma (26.8 km S of epicenter) [Map] / not felt : Loud boom and felt sound on chest  
Hubbardston, MA / Very weak shaking (MMI II) / rattling, vibrating / very short : Loud boom  
Stoddard NH (4.7 km SW of epicenter) [Map] / not felt : I heard a loud boom.  
New Boston, NH / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Heard a big boom sound first then the vibration followed. Thought a tree fell on my house or my wood pile fell over. My dog was chilling on my deck and came flying over to the door cause it scared her. I couldn’t imagine what had happened  
New Boston, nh (33.2 km NE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : There was a boom noise and then some slight vibration  
Nashua NH / not felt : Didn’t felt anything  
Francestown / Moderate shaking (MMI V) / 1-2 s : The room shook briefly. It sounded like something fell off the house.  
Hancock NH / Very weak shaking (MMI II) / complex motion difficult to describe / 5-10 s : More heard than felt  
Merrimack / not felt
Goffstown / Very weak shaking (MMI II) / single vertical bump / 10-15 s
MARLBOROUGH, NH / Very weak shaking (MMI II) / 15-20 s
Providence Rhode Island (109.7 km SSE of epicenter) [Map] / not felt
amherst / Weak shaking (MMI III) / single vertical bump / 1-2 s : Just a single dull but powerful bang. Similar to a construction dynamite ground load.  
Royalston, Ma / Light shaking (MMI IV) / vibration and rolling / 10-15 s : I heard it, it sounded like an explosion. At first i thought thunder, but no, it seemed as though it gained velocity as it went on and slowly tapered.... very weird  
Winchendon, ma / Weak shaking (MMI III) / rattling, vibrating / very short : Loud boom and felt vibration in house  
Manchester nh / Very weak shaking (MMI II)
Boxborough, MA / Very weak shaking (MMI II) / very short : Heard a boom - didn’t really feel it  
Boscawen, NH (62.1 km NNE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 10-15 s : Heard a sustained deep rumble that seemed to get louder like dopler effect and slight sustained vibration not distinguishable from sound related vibration or movement from the earth itself. Either way it carried on to long to be an explosion from blasting  
Pembroke, NH / Very weak shaking (MMI II) / 2-5 s : Just heard a loud boom  
Fitzwilliam , New Hampshire / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : We were working outside, and I heard a huge, rolling, Deep, sound that I assumed was a massive Roll of Thunder. It was cloudy out, and I thought we were in for a massive storm. It was unusual and frightening.  
Derry / not felt
Athol, MA / Weak shaking (MMI III) / rattling, vibrating / very short : I thought it was a very large explosion. Very low and deep sound to it. I even joked that the wind blowing 30 seconds later was remnants of the shock wave. I can't believe this hasn't been identified, so I'm going to guess that it was a small meteorite.  
williamstown / not felt
Concord, nh / not felt / 1-2 s : In the parking lot of market basket on fort eddy road in concord NH. Sounded like an explosion. Did not feel a tremor. Unusual sound.  
Lebanon / Moderate shaking (MMI V) / single vertical bump / 1-2 s : Large thump from Lebanon maine  
Manchester, NH 03101 / Very weak shaking (MMI II) / 2-5 s
Turners Falls / not felt
Antrim, NH (2.2 km SSE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Heard a boom, that seemed to echo in the distance, creating the sound of 3 booms, then felt the house shake for a few seconds.  
Laconia / not felt
Oakham, MA / not felt : My wife and I were outside and heard a muffled boom. We both looked at each other and said "what was that"? I thought it was a distant gas explosion.  
03104 / Very weak shaking (MMI II) / very short : Loud boom  
Nashua / Light shaking (MMI IV) / rattling, vibrating : I was on call at the hospital the morning of Oct 10 th. Felt the vibrations but the timing was between 4 am - 5:30 am. Was more than 10 mins.  
Bradford,nh / not felt : Felt nothing  
Danbury nh (88.3 km N of epicenter) [Map] / not felt
Sitting on my couch. / Very weak shaking (MMI II) / single vertical bump / 2-5 s : It felt like something bumped my house , with a little shake  
Raymond, NH / Very weak shaking (MMI II) / 1-2 s : Outside on my deck. Felt the percussive force in my chest. 1-2 seconds. Assumed a nearby explosion. No reverb.  
WEARE new hampshire / Moderate shaking (MMI V) / single vertical bump / 1-2 s : Loud boom through the house  
Royalston, MA / Weak shaking (MMI III) / vibration and rolling / 1-2 s : Our neighbors are doing tree work. I thought they’d taken down a particularly large tree! Both my husband and I were inside. We heard a loud low explosive sound, and the whole house shook for a second. It seemed like it originated from somewhere north o  
Haverhill MA / not felt / single vertical bump / very short : Just a big thump like someone had dropped something in the attic  
Wilton,NH / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Loud boom followed by light rattling & mild vibration.  
Gardner, MA / not felt
Leicester, massachusetts / Very weak shaking (MMI II) / single vertical bump / 2-5 s : Felt like a low rumbling. Thought something had hit the outside of the house.  
Whitehouse OH / not felt : Just heard a large faint boom while walking in the woods.  
Milford,NH / Very weak shaking (MMI II) / single lateral shake / 1-2 s : Very loud boom that shook the house at 11.30am Oct 10 2021. Called to person upstairs to ask if something large fell down. He said no and we wondered if local construction crew made the loud noise.  
Rindge, NH / Very weak shaking (MMI II) / 1-2 s : Mostly heard loud boom….. outside, so no rattling observed. Felt it through the ground for a second.  
Ashburnham ma / Moderate shaking (MMI V) / single lateral shake / 1-2 s : Concussion boom not quake  
Bolton, MA / not felt : Heard booms  
Otter River / Very weak shaking (MMI II) / single vertical bump / very short
Campton, nh (125 km N of epicenter) [Map] / not felt
Keene nh 03431 / not felt
Derry (49.4 km NNE of epicenter) [Map] / not felt
Gilsum NH / not felt
New Boston, NH / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Heard a big boom sound first then the vibration followed. Thought a tree fell on my house or my wood pile fell over. My dog was chilling on my deck and came flying over to the door cause it scared her. I couldn’t imagine what had happened  
Litchfield NH (35.6 km ENE of epicenter) [Map] / not felt : I was in my room and I felt or heard nothing  
New Ipswich NH 23 Kenney rd / not felt : attic door rattled  
Marshfield (123.4 km SE of epicenter) [Map] / not felt : I was driving by car/arriving home. Didn't see, hear or feel anything. My chickens were acting very odd however when I checked on them, which was just before noon so slightly after the quake. So my animals acting up was my only notice.  
Medford, MA / Light shaking (MMI IV) / vibration and rolling / 5-10 s : Light shaking. I was sleeping and woke up to rolling shaking on the second floor. It was pretty strong. My first thought was "feels like an earthquake". It didn't last long, felt more like it was just passing through.  
Westmoreland / not felt
Winchendon MA / Very weak shaking (MMI II) / very short : Large boom and rumble at time of boom  
Bangor, Maine (339.5 km NE of epicenter) [Map] / not felt : We were smoking, and we do not remember hearing a loud boom or feeling any shaking in this area.  
Concord nh / Light shaking (MMI IV) / single vertical bump / 1-2 s : Felt like very heavy object fell on roof or hit side of house  
Merrimack (26.5 km ENE of epicenter) [Map] / not felt : Didn’t feel anything  
Nashua N.h / not felt
Hooksett, nh / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : Medium frequency vibration felt while standing on the ground. It coincided with a boom and rumbling I heard in the sky that lasted about 3 seconds.  
Hopkinton massachusetts / not felt : I heard a sonic boom and rumbling, and I even checked my weather radar to see if there was a nearby thunderstorm, but it sounded much different, and lasted a few seconds. Low shaking, more of a rumbling after the boom.  
North Brookfield Mass / not felt : Was outside. Something made me look to the north east. Didn't feel it but it but heard a muffled, deep explosion noise.  
EASTHAMPTON (82.8 km SW of epicenter) [Map] / not felt
Winchendon Massachusetts / Weak shaking (MMI III) / 1-2 s : Very loud boom almost like my napping daughter fell out of bed or a small car accident occurred outside our house.  
EXETER nh / not felt
Enfield, ct / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Temple, NH / Moderate shaking (MMI V) / 15-20 s : It started after I heard the Boom we all thought it was tanternite teenagers routinely use that in the area. It is illegal but police do not fo anything to stop it. It shook the house. My feet were on the floor and the floor was moving  
Francestown NH / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : Felt like something heavy fell off of a shelf on the floor above.  
Rindge, NH / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Large boom.  
Concord NH (55.7 km N of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Jaffrey NH / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Heard very loud distant rumble and felt deep ground vibration, best described as similar to extremely heavy thunder. Everything shuddered.  
Jaffrey / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
Deering NH / not felt : I did not feel the ground move but heard a very loud "rumbling" sound. Much louder than thunder and it lasted longer.  
Fiskdale / not felt
Westminster Massachusetts / Light shaking (MMI IV) / single vertical bump / very short : I was listening to music via my headphones and heard a very loud boom! Startled my wife and me.  
TOWNSEND ma / Very weak shaking (MMI II) / vibration and rolling / 2-5 s
Mount Monadnock summit (18.7 km WNW of epicenter) [Map] / not felt : At the summit heard what sounded like rolling thunder. It was very loud.  
Hooksett NH (57.5 km NW of epicenter) [Map] / Very weak shaking (MMI II) : Sounded like someone was blasting  
Milford / Very weak shaking (MMI II) / single lateral shake / 1-2 s : I was upstairs and heard something that seemed like something hit the house and then heard some objects rattle.  
Hillsborough, NH / not felt : My daughter also lives in Hillsborough, NH, and she heard a sound like thunder that lasted 30 to 40 seconds.  
Derry NH / not felt : Didn't feel but heard. Sounded like a loud, close gunshot and I couldn't imagine who could be shooting so close to my location (condo complex next door to high school). It was extremely loud and didn't have a normal echo. No reverberating sound at all whi  
Concord, NH / Very weak shaking (MMI II) / very short : Sounded like an explosion with a slight rumble.  
wilton, nh / Very weak shaking (MMI II) / complex motion difficult to describe / 1-2 s
Westminster ma / Very weak shaking (MMI II) / very short : Very weak, was walking outdoors didn’t feel shaking but heard the loud boom. Sounded like it was coming from the north  
Athol, MA / Very weak shaking (MMI II) / rattling, vibrating / very short : Heard what we thought was thunder, and felt a very light vibration.  
Greenville nh / not felt : Explosion sound  
Concord NH / not felt
Hudson, NH / Very weak shaking (MMI II) / very short : Felt like a large explosion or sonic boom  
Gardner, Ma / not felt / rattling, vibrating / 2-5 s
Weare, nh / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Loud, almost like thunder  
Swanzey, NH (36.7 km WNW of epicenter) [Map] / not felt
Portsmouth nh 03801 / not felt
Lebanon / not felt
04220 (156.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Swanzey nh (32.3 km W of epicenter) [Map] / not felt : I heard it, a long drawn out boom and rumble, sounded like an dawn out thunder.  
Mount Sunapee / not felt : Was hiking Mount Sunapee and heard a small rumble, thunder like sound around 11.30am Sunday 10/10/21  
Fitzwilliam NH / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : We were outside getting in the truck, sounded like 2 steel train cars colliding multiple times definitely east north east like 7 to 10 second duration.  
Chichester, NH / Very weak shaking (MMI II) / single vertical bump / very short : It felt like something large fell, or possibly an explosion. Short vibration, less than a second.  
Nashua / Very weak shaking (MMI II) / single vertical bump / 1-2 s
Sharon, NH / Weak shaking (MMI III) / single vertical bump / very short : 2 loud booms.  
Concord, NH (58.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Sounded like a bang or like someone fell. Then felt a 5-10 second rumble. My son and I asked each other if there was an earthquake.  
Barnstead / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Phillipston (30.1 km SW of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : One low pitched loud boom and felt like a car or something hit the house.  
Center Barnstead NH (82.5 km NE of epicenter) [Map] / not felt : I was stacking wood, and heard what sounded like a sonic boom, or large detonation far away, and more "felt" the percussive force. It lasted less than 5 or 6 seconds. Did not feel any shaking. I thought maybe an asteroid had hit somewhere West of here....  
Rindge NH / Weak shaking (MMI III) / very short : Thought it was an explosion nearby....I was in a 5x8 storage room inside my closed garage. Only had the thought that something blew up and continued working. Didn't realize it was heard so far away until I turned on the computer.  
Greenville nh / not felt : Explosion sound  
francestown, NH (24.6 km NNE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : In the AM heard what sounded like an explosion w/ mild shaking. Went outside and could hear what sounded like a jet so I thought maybe it was a plane breaking the sound barrier. In the afternoon I heard a couple more mild explosion sounds.  
CHICHESTER NH / Light shaking (MMI IV) / single lateral shake / very short : Heard a loud bang, like an explosion then whole house shook  
Lowell MA / not felt
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