Light mag. 4.1 earthquake - Matanuska-Susitna County, 48 mi northwest of Anchorage, Alaska, USA, on 7 Oct 12:59 am (GMT -8) -

Light mag. 4.1 earthquake - Matanuska-Susitna County, 48 mi northwest of Anchorage, Alaska, USA, on 7 Oct 12:59 am (GMT -8)

Light magnitude 4.1 earthquake at 67 km depth

7 Oct 09:02 UTC: First to report: USGS after 3 minutes.
7 Oct 09:04: Hypocenter depth recalculated from 65.5 to 55.9 km (from 41 to 35 mi).
... [show all] ...
7 Oct 09:10: Magnitude recalculated from 4.0 to 4.1. Hypocenter depth recalculated from 55.8 to 66.5 km (from 35 to 41 mi). Epicenter location corrected by 2.3 km (1.4 mi) towards WSW.
Date & time: Oct 7, 2020 08:59:30 UTC -
Local time at epicenter: 7 Oct 12:59 am (GMT -8)
Magnitude: 4.1
Depth: 66.5 km
Epicenter latitude / longitude: 61.6435°N / 151.0481°W (Matanuska-Susitna, Alaska, United States)
Antipode: 61.644°S / 28.952°E
Nearest volcano: Hayes (75 km / 47 mi)
Nearby towns and cities:
30 km (19 mi) WNW of Susitna (pop: 18) --> See nearby quakes!
55 km (34 mi) WSW of Willow (pop: 2,100) --> See nearby quakes!
59 km (37 mi) WNW of Big Lake (pop: 3,350) --> See nearby quakes!
65 km (40 mi) W of Houston (pop: 2,210) --> See nearby quakes!
76 km (48 mi) W of Meadow Lakes (pop: 7,570) --> See nearby quakes!
77 km (48 mi) NW of Alaska City (pop: 298,700) --> See nearby quakes!
78 km (48 mi) W of Knik-Fairview (pop: 14,900) --> See nearby quakes!
86 km (54 mi) WNW of Eagle River (pop: 24,800) --> See nearby quakes!
86 km (54 mi) WNW of Eagle River (Anchorage) (pop: 24,800) --> See nearby quakes!
994 km (618 mi) WNW of Juneau (pop: 32,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 7.8°C (46 F), humidity: 80%, wind: 1 m/s (1 kts) from SE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
4.167 km30 Km WNW of Susitna, Alaska, USAUSGS
4.672 kmSouthern Alaska, USAEMSC

User reports for this quake (41)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Anchorage (16.7 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : It woke me up. I am not a light sleeper  
Knik-Fairview, Matanuska-Susitna, Alaska (79.1 km E of epicenter) [Map] / not felt (reported through our app)
Alaska City, Anchorage (76.5 km SE of epicenter) [Map] / Very weak shaking (MMI II) : Quick jolt. (reported through our app)  
Alaska City, Anchorage (83.2 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s
Girdwood, Anchorage, Alaska (128.4 km SE of epicenter) [Map] / Moderate shaking (MMI V) / vertical swinging (up and down) / 2-5 s (reported through our app)
Anchorage (80.2 km SE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Woke from dead sleep  
Anchorage I felt earthquake around 1am. (84.8 km SE of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s
Alaska City, Anchorage (78.1 km SE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
near Alaska City, Anchorage (88.1 km SE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s : Whole house rocked boyfriend awoke same with dog  
Eagle River, Anchorage, Alaska (86 km ESE of epicenter) [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 1-2 s : House and doors shook a bit. Short not bad.  
Anchorage (82.9 km SE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Eagle river (86.4 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 15-20 s
Alaska City, Anchorage (80.7 km SE of epicenter) [Map] / Moderate shaking (MMI V) : Shook my bed and building (reported through our app)  
Anchorage /Jewel Lake Rd. / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s : Quick Shake , sided to side / East to West I was sitting on my couch watching T,V. , I live in a 6 Plex and it shook the building . Interesting the Earthquake we had Nov/2018 , ran South to North, fast like a Chang, Chang , Chang hard feeling, best way I | One user found this interesting.  
Trail Lake, AK 61 37 33.67 N 150 45 15.52 W / Moderate shaking (MMI V) / 20-30 s : The quake awakened both of us and the chickens, whom we could hear alarmed in their coop 80 feet away. Loose items downstairs hanging from hooks banged against surfaces, but nothing fell or broke (but we have lips on all shelves). The movement here seemed  
Anchorage Alaska / Light shaking (MMI IV) : Fairly hard jolt for 1-2 seconds | 2 users found this interesting.  
Anchorage / Weak shaking (MMI III) / single lateral shake / 1-2 s
Anchorage / Very weak shaking (MMI II) / 2-5 s : Shook the bed  
Chugiak Alaska / Very weak shaking (MMI II) / 1-2 s : Was in bed, not asleep. Short shake.  
Anchorage / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Anchorage / Weak shaking (MMI III) / single lateral shake / 1-2 s
Anchorage alaska / not felt / 2-5 s : Shook my house. Got scared.  
Anchorage / Light shaking (MMI IV)
Big Lake / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Anchorage Alaska / Light shaking (MMI IV) / single lateral shake / 15-20 s
Elmendorf Air Force Base (United States, 91 km SE of epicenter) : Woke me from a sound sleep (reported through EMSC)  
Eagle River (United States, 90 km SE of epicenter) : Sound asleep and it woke me. But I heard it more than felt it. The shake must have been while I was still asleep and by the time I was awake it was just loud. (reported through EMSC)  
Eagle River (United States, 90 km SE of epicenter) : Didn't 'feel' it, but we both woke up at about 1 a.m. (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : We were sleeping. Did not feel the quake. Palmer, AK (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : Quick shake at 1:00 in the morning In Anchorage that was strong enough to wake us. (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : Rocking and rolling pretty good (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : Little shake (reported through EMSC)  
Eagle River (United States, 90 km SE of epicenter) : Woke me from a deep sleep. Large jolt followed by a light minute long rattle. (reported through EMSC)  
Anchorage (United States of America, 81 km SE of epicenter) : A quick jolt - South Anchorage 72nd Ave (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : Normal Alaskan earthquake. (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : Little baby quake (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : Felt long, my book shelf visibly shook. (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : A good shake-Turnagain, Anchorage (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : The house was shaking... it last a bit (reported through EMSC)  
Anchorage (United States, 81 km SE of epicenter) : South anchorage, barely felt it. Jittery (reported through EMSC)  
Houston (United States, 69 km E of epicenter) : Dad said "We just had an earthquake" to which I replied... "uhh no we didn't and I'll prove it"Checks GoogleBam! Earthquake alert.... so yep.. webhad an earthquake (reported through EMSC)  
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