Light mag. 3.9 earthquake - Gulf of Alaska, 15 mi south of Chernabura Island, Aleutians East County, Alaska, USA, on Wednesday, 30 December 2020 at 14:04 (GMT) -

Light mag. 3.9 earthquake - Gulf of Alaska, 15 mi south of Chernabura Island, Aleutians East County, Alaska, USA, on Wednesday, 30 December 2020 at 14:04 (GMT)

Light magnitude 3.9 earthquake at 29 km depth

30 Dec 20:54 UTC: First to report: USGS after 7 hours.
31 Dec 06:04: Magnitude recalculated from 3.6 to 3.9. Hypocenter depth recalculated from 25.0 to 29.3 km (from 15.5 to 18.2 mi). Epicenter location corrected by 6.9 km (4.3 mi) towards NNW.
Date & time: 30 Dec 2020 14:04:00 UTC -
Magnitude: 3.9
Depth: 29.3 km
Epicenter latitude / longitude: 54.5782°N / 159.6771°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Stepovak Bay 2 (150 km / 93 mi)
Nearby towns and cities:
99 km (62 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
152 km (94 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
178 km (110 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
186 km (115 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
195 km (121 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
206 km (128 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
206 km (128 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
242 km (150 mi) E of False Pass (pop: 40) --> See nearby quakes!
271 km (169 mi) SSW of Port Heiden (pop: 98) --> See nearby quakes!
398 km (248 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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.
MagnitudeDepthLocationSource
M 3.929 km99 Km SSE of Sand Point, Alaska, USAUSGS

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Earlier earthquakes in the same area

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