Strong mag. 5.5 earthquake - Bering Sea, 28 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Sunday, 29 Nov 2020 5:59 pm (GMT -11) -

Strong mag. 5.5 earthquake - Bering Sea, 28 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Sunday, 29 Nov 2020 5:59 pm (GMT -11)

Strong magnitude 5.5 earthquake at 34 km depth

30 Nov 05:10 UTC: First to report: GFZ after 11 minutes.
30 Nov 05:14: Now using data updates from USGS
30 Nov 20:06: Magnitude recalculated from 5.4 to 5.5. Hypocenter depth recalculated from 48.6 to 30.9 km (from 30 to 19.2 mi). Epicenter location corrected by 22 km (14 mi) towards SSE.
4 Dec 00:16: Hypocenter depth recalculated from 30.9 to 34.0 km (from 19.2 to 21 mi). Epicenter location corrected by 4.7 km (2.9 mi) towards E.
Date & time: 30 Nov 2020 04:59:09 UTC -
Local time at epicenter: Sunday, 29 Nov 2020 5:59 pm (GMT -11)
Magnitude: 5.5
Depth: 34.0 km
Epicenter latitude / longitude: 52.7214°N / 168.2949°W (Bering Sea, Alaska, United States)
Nearest volcano: Recheschnoi (48 km / 30 mi)
Nearby towns and cities:
45 km (28 mi) ESE of Nikolski (pop: 18) --> See nearby quakes!
174 km (108 mi) SW of Unalaska (pop: 4,490) --> See nearby quakes!
229 km (142 mi) SW of Akutan (pop: 1,040) --> See nearby quakes!
399 km (248 mi) SW of False Pass (pop: 40) --> See nearby quakes!
404 km (251 mi) E of Atka (pop: 64) --> See nearby quakes!
456 km (283 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
470 km (292 mi) WSW of King Cove (pop: 1,010) --> See nearby quakes!
Weather at epicenter at time of quake:
Snow 2.2°C (36 F), humidity: 92%, wind: 21 m/s (41 kts) from ENE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) 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.
MagnitudeDepthLocationSource
M 5.534 km45 Km ESE of Nikolski, Alaska, USAUSGS
M 5.443 kmFOX ISLANDS, ALEUTIAN ISLANDS, USAEMSC
M 5.524 km26 Km E of Nikolski, Alaska, USAGFZ
M 5.546 kmFox Islands, Aleutian Islands, USAGeoAu

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Akutan (230.3 km NE of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s (reported through our app)
Nikolski, AK / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
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Earlier earthquakes in the same area

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