Mag. 4.1 earthquake - Central Alaska, USA, on 25 Oct 11:53 pm (GMT -8) -

Mag. 4.1 earthquake  - Central Alaska, USA, on 25 Oct 11:53 pm (GMT -8)

Light magnitude 4.1 earthquake at 5 km depth

26 Oct 07:57 UTC: Premier à signaler: USGS après 4 minutes.
26 Oct 07:58: Profondeur recalculée de 5.0 à 4.1 km (de 3.1 à 2.5 mi). Emplacement de l'épicentre corrigé de 1 km (0.6 mi) au S.
... [show all] ...
26 Oct 08:25: Magnitude recalculée de 4.2 à 4.1. Profondeur recalculée de 4.9 à 5.2 km (de 3 à 3.2 mi). Emplacement de l'épicentre corrigé de 8.7 km (5.4 mi) au SO.
Date & time: 26 Oct 2020 07:53:03 UTC -
Local time at epicenter: 25 Oct 11:53 pm (GMT -8)
Magnitude: 4.1
Profondeur: 5.2 km
Epicenter latitude / longitude: 63.2252°N / 143.4075°W (Alaska, États-Unis)
Volcan le plus près: Wrangell (148 km / 92 mi)
Nearby towns and cities:
18 km S de Tanacross (pop: 136)
24 km WSW de Tok (pop: 1,260)
38 km NNE de Mentasta Lake (pop: 112)
45 km WNW de Tetlin (pop: 127)
57 km SE de Dot Lake Village (pop: 62)
64 km NNE de Slana (pop: 147)
404 km NE de Anchorage (pop: 298,700)
732 km NW de Juneau (pop: 32,800)
Weather at epicenter at time of quake:
Snow -6.6°C (20 F), humidity: 93%, wind: 0 m/s (1 kts) from SE
Primary data source: USGS
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.
MagnitudeProfondeurLocationSource
M 4.15.2 kmCentral Alaska, USAUSGS

User reports for this quake (10)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Eagle subdivision tok (40.2 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / complex rolling (tilting in multiple directions) / 20-30 s : Watching tv and thing started rattling and house rocking and shaking woke kids up and dogs baking. It slowed and thought about seeking cover when it started again but stopped.
Clayton NY 13624 / Severe shaking (MMI VIII) / very short : About 12:15 a big explosion type boom occured with no apparent reason. Whole house moved but sounded like it went over the roof of our house.
Approximately 7 miles west of Tok Alaska / Moderate shaking (MMI V) / vibration and rolling / 2-5 s : Just before midnight 10/25/2020 Snow falling, had just let the dog back in and sat down. Heard rumbling like a large truck passing which made no sense then came the ground shaking. House shook and things rattled for about 3 seconds. Have not noticed any damage at this time.
369.3 km WSW of epicenter [Map] / not felt (reported through our app)
77.8 km NW of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Tok / Strong shaking (MMI VI) / 10-15 s : Heard rumbling, felt shaking, dishes rattled. Moderate shaking
Tok, / Light shaking (MMI IV) / rattling, vibrating / very short
Tok / Weak shaking (MMI III)
tok / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Tok, Alaska / Moderate shaking (MMI V) / 5-10 s
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Mag. 4.1 earthquake - Central Alaska, USA, on 25 Oct 11:53 pm (GMT -8)

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