Major magnitude. 7.1 earthquake - Bering Sea, 13 mi southeast of Egg Island, Aleutians West County, Alaska, USA, on Friday, 22 March 1957 at 14:21 (GMT)

Major magnitude. 7.1 earthquake - Bering Sea, 13 mi southeast of Egg Island, Aleutians West County, Alaska, USA, on Friday, 22 March 1957 at 14:21 (GMT)

Major magnitude 7.1 earthquake at 47 km depth

Date & time: 22 Mar 1957 14:21:15 UTC
Magnitude: 7.1
Depth: 46.6 km
Epicenter latitude / longitude: 53.778°N / 165.771°W (Bering Sea, Alaska, United States)
Nearest volcano: Akutan (42 km / 26 mi)
Nearby towns and cities:
40 km (25 mi) S of Akutan (pop: 1,040) --> See nearby quakes!
51 km (32 mi) E of Unalaska (pop: 4,490) --> See nearby quakes!
194 km (121 mi) SW of False Pass (pop: 40) --> See nearby quakes!
225 km (140 mi) ENE of Nikolski (pop: 18) --> See nearby quakes!
252 km (156 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
265 km (165 mi) WSW of King Cove (pop: 1,010) --> See nearby quakes!
382 km (237 mi) WSW of Sand Point (pop: 1,060) --> See nearby quakes!
382 km (238 mi) SW of Nelson Lagoon (pop: 52) --> See nearby quakes!
6550 km (4070 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6550 km (4070 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1015 joules (783 gigawatt hours, equivalent to 6.7 x 105 tons of TNT or 42.1 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 7.147 kmFox Islands, Aleutian Islands, Alaska (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks of the 7.1 quake Bering Sea, 13 mi southeast of Egg Island, Aleutians West County, Alaska, USA, 22 March 1957 14:21 GMT

More info
Recorded aftershocks, latest first (13 quakes):
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Earlier earthquakes in the same area

Major magnitude. 7.1 earthquake - Bering Sea, 13 mi southeast of Egg Island, Aleutians West County, Alaska, USA, on Friday, 22 March 1957 at 14:21 (GMT)
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