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Stato dell'evento: unconfirmed [?]

Sismo o evento simile a un terremoto segnalato: 40 km a sud da Lansing, Contea di Ingham County, Michigan, Stati Uniti, martedì, 21 set 2021 12:10 (GMT -4) -

Sismo o evento simile a un terremoto segnalato: 40 km a sud da Lansing, Contea di Ingham County, Michigan, Stati Uniti, martedì, 21 set 2021 12:10 (GMT -4) Sismo o evento simile a un terremoto segnalato: 40 km a sud da Lansing, Contea di Ingham County, Michigan, Stati Uniti, martedì, 21 set 2021 12:10 (GMT -4)
21 Sep 16:23 UTC: Primo a segnalare: VolcanoDiscovery dopo 13 minuti.

Dettagli del sismo

Data e ora21 Sep 2021 16:10:35 UTC -
Ora locale all'epicentromartedì, 21 set 2021 12:10 (GMT -4)
Statusunconfirmed
Magnitudinesconosciuto (3.8?)
Prof.50.0 km
Epicentro latitudine / longitudine42.37318°N / 84.63071°W (Contea di Jackson, Michigan, Stati Uniti)
Antipode42.373°S / 95.369°E
Intensità di scuotimentoScuotimento molto debole
Sentito424 rapporti
Fonte dati primariaVolcanoDiscovery (Rapporti di scuotimento inviati da utenti)
Luoghi vicini6 km E da Springport (pop: 790) | Mappa | Sismi nelle vicinanze
18 km NE da Albion (pop: 8,230) | Mappa | Sismi nelle vicinanze
24 km NO da Jackson (pop: 33,100) | Mappa | Sismi nelle vicinanze
40 km S da Lansing (pop: 115,100) | Mappa | Sismi nelle vicinanze
42 km SSO da East Lansing (pop: 48,500) | Mappa | Sismi nelle vicinanze
45 km E da Battle Creek (pop: 51,600) | Mappa | Sismi nelle vicinanze
74 km O da Ann Arbor (pop: 117,100) | Mappa | Sismi nelle vicinanze
79 km E da Kalamazoo (pop: 76,000) | Mappa | Sismi nelle vicinanze
119 km NO da Toledo (Ohio) (pop: 279,800) | Mappa | Sismi nelle vicinanze
748 km ONO da Washington (District of Columbia) (pop: 601,700) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoOvercast Clouds 22.2°C (72 F), humidity: 84%, wind: 5 m/s (10 kts) from SSW
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Seismograms

Seismic station: Ann Arbor, Michigan, USA (AAM/US network) | Distance from quake: 80 km / 50 mi | Show on map | Station Info
Seismic station Ann Arbor, Michigan, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (600)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Jackson, Michigan (18 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Very loud boom lasted a second or 2 shook house and windows. Like an explosion. | 17 users found this interesting.  
Marshall MI / Very weak shaking (MMI II) / single lateral shake / very short : I heard two loud bangs and it made my curtains pulse. A quick shake. | 7 users found this interesting.  
East Leroy michigan (50 km WSW of epicenter) [Map] / Very weak shaking (MMI II) / complex motion difficult to describe / 2-5 s : Not 100% sure it was an earthquake but I've been in earthquakes before out west and in Anchorage so I'm familiar with them. It felt an awful lot like that although I've never felt one in Michigan. Lasted maybe 3 seconds, very weak. Others heard and felt i | 7 users found this interesting.  
Pinckney MI (78.8 km E of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s : Heard a loud boom like a explosion. | 5 users found this interesting.  
Gregory, / Moderate shaking (MMI V) / single vertical bump / very short : Very loud boom at about 12:03 PM Seemed more intense than a sonic boom from a passing jet. It shook the house. Checked lightning tracking sites with none reported in area. Wonder if it may have been caused by a meteorite. | 5 users found this interesting.  
  • I agree possible meteorite, LOUD booms and several reports of "felt like something hit the roof".
Marshall, MI (29 km WSW of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / very short : Explosion like noise, followed by concussion feel against the building. Thought it was construction explosion or event on I-94. | 5 users found this interesting.  
Marshall, Michigan (38.9 km WSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : There was 2 booms. The first I thought was thunder, it got my attention. The second boom was right after and MUCH louder with shaking. My daughter and I both felt and heard it. The second boom lasted longer than the first. | 5 users found this interesting.  
near Olivet, Eaton, Michigan (12.2 km W of epicenter) [Map] / Light shaking (MMI IV) / complex motion difficult to describe / 1-2 s : Shook my house to the point that I thought a tree fell on it. | 4 users found this interesting.  
3659 Haynes rd Leslie, mi / Weak shaking (MMI III) / single vertical bump / very short : At 12:03pm, a cannon boom sound went off. It shook the house and the dogs were scared. It happened and was over fast. | 4 users found this interesting.  
Battle Creek Michigan / not felt : I heard a large boom and looked outside. Thought for sure it was thunder. | 4 users found this interesting.  
Springport mi (4.5 km W of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / very short : Sleeping, woke me up with a boom and my cat on my face, and the house shivered. | 4 users found this interesting.  
near Albion, Calhoun, Michigan (4.8 km SE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : 2 fairly loud explosion like booms in rapid succession. Windows rattled. Seemed to come from the northwest of our house. Noticable enough for us to look outside for smoke and emergency vehicles. | One user found this interesting.  
Jackson, mi / not felt : I was at the bank in drive thru a little after noon and my window was down and I heard a loud boom sound. I first thought it was thunder and I looked up into the sky and saw nothing.. then I thought it was a car hitting the bank building and I looked into | 3 users found this interesting.  
Blackman, mi (16.5 km ESE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Heard a loud boom and some light shaking. As if some heavy equipment broke and dropped a heavy load directly in front of my house. | 3 users found this interesting.  
Parma / Very weak shaking (MMI II) / 1-2 s : Heard explosion and house shook slightly | 3 users found this interesting.  
Bellevue, Eaton, Michigan (35.2 km W of epicenter) [Map] / not felt : I didn't feel anything, one of my coworkers mentioned hearing thunder but my lightning tracker had zero activity that day.  
Albion, Calhoun, Michigan (9.4 km SSW of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 15-20 s : I live in a log house on a hill. It has been in reported 100 mph straight line winds. But what I experienced with this, was very concerning! I heard a very loud boom that sounded very close to my house. I thought it was a tanarite explosion (I live around  
Concord, Jackson, Michigan (13.2 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : i looked out my window towards albion (i am in parma ) and noticed grey clouds. Then I heard and felt one big BOOOOOOM and thought it was one large thunderclap, but no rain or others followed.  
PINCKNEY, MI / not felt : heard what sounded like a loud crash in the house | 2 users found this interesting.  
Leslie, MI 49251-9531 / Very weak shaking (MMI II) / very short : The insides of our bodies had a weird reaction to it. | 2 users found this interesting.  
  • Family member described this same thing, also Leslie (Bunker Hill twp)
Jackson mi / Weak shaking (MMI III) / single vertical bump / 1-2 s : Heard a huge boom then my house shook for 2 seconds. | 2 users found this interesting.  
Marshall / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : House moved from back of house, ceiling noises, then 2 loud dull booms heard | 2 users found this interesting.  
Duck lake mi / Light shaking (MMI IV) / 1-2 s : It sounded like an explosion or a huge tree fell right by our house! | 2 users found this interesting.  
Marshall Michigan Downtown (29.5 km WSW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short : Yes...mainly heard the 2 loud booms. | 2 users found this interesting.  
Leslie, Michigan / Light shaking (MMI IV) / rattling, vibrating / 20-30 s : My entire home vibrated. | 2 users found this interesting.  
Leslie, MI (18.5 km ENE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Didn’t so much feel the ground shake, but heard and felt two large booms one right after the other. Seemed like explosions. | 2 users found this interesting.  
East Leroy, MI (54.4 km WSW of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s : Two LOUD BOOMS, I swear the house was vibrating. I was sitting by an open window but yet the noise sounded like it was coming from my basement. | 2 users found this interesting.  
Gregory Michigan / Very weak shaking (MMI II) / 1-2 s : Boom that shook the house. Neighbor also felt/heard it. | One user found this interesting.  
Pinckney / not felt : Heard a loud bang. Thought something hit the roof but nothing was there. | One user found this interesting.  
  • Same thing for us in The Hamburg area.
Tekonsha (37.6 km SW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : Heard what sounded like thunder only deeper rumbling. 2 loud muffled booms, second one shook house. | One user found this interesting.  
48169 / not felt / 1-2 s : I was in the basement of my house and thought it was thunder or someone in a large truck in my driveway or possibly an accident in the street in front of my house. . I immediately went upstairs to see what was going on. | One user found this interesting.  
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