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Strong mag. 5.2 earthquake - Bering Sea, Alaska, USA, on Wednesday, Dec 1, 2021 at 4:26 pm (GMT -10) -

Strong mag. 5.2 earthquake - Bering Sea, Alaska, USA, on Wednesday, Dec 1, 2021 at 4:26 pm (GMT -10)

Strong magnitude 5.2 earthquake at 21 km depth

2 Dec 02:32 UTC: First to report: USGS after 6 minutes.
2 Dec 02:44: Magnitude recalculated from 5.4 to 5.3. Hypocenter depth recalculated from 42.0 to 10.0 km (from 26 to 6.2 mi). Epicenter location corrected by 105 km (65 mi) towards NE.
6 Dec 03:46: Magnitude recalculated from 5.3 to 5.2. Hypocenter depth recalculated from 10.0 to 21.1 km (from 6.2 to 13.1 mi). Epicenter location corrected by 2.5 km (1.6 mi) towards SSW.
Date & time: Dec 2, 2021 02:26:59 UTC -
Local time at epicenter: Wednesday, Dec 1, 2021 at 4:26 pm (GMT -10)
Magnitude: 5.2
Depth: 21.1 km
Epicenter latitude / longitude: 50.9687°N / 179.596°E (Bering Sea, Alaska, United States)
Antipode: 50.969°S / 0.404°W
Nearest volcano: Semisopochnoi (107 km / 66 mi)
Weather at epicenter at time of quake:
Broken Clouds 3.6°C (39 F), humidity: 56%, wind: 5 m/s (11 kts) from WNW
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | about seismic energy
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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
5.221 km280 Km WSW of Adak, AlaskaUSGS
5.310 kmRat Islands, Aleutian IslandsRaspberryShake
5.234 kmRat Islands, Aleutian IslandsGFZ
5.310 kmRAT ISLANDS, ALEUTIAN ISLANDSEMSC
5.410 kmNear AnchorageRENASS
5.455 kmRat Islands, Aleutian IslandsGeoAu

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Translate
Hillsboro, KS / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 minutes
Canada / Weak shaking (MMI III) / rattling, vibrating / 30-60 s
Nikiski Ak / not felt
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Aftershocks

[More info]

Recorded aftershocks, latest first (2 quakes)

Date and timeMag
Depth		LocationDetails
Dec 4, 2021 17:58
23 weeks ago
3.0

22 km		Bering Sea, Alaska, USAMore
Dec 4, 2021 17:58
23 weeks ago
3.8

27 km		Bering Sea, Alaska, USAMore

Earlier earthquakes in the same area

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