Very strong mag. 6.7 earthquake - North Pacific Ocean, 47 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Wednesday, 2 January 1957 at 02:17 (GMT)

Very strong mag. 6.7 earthquake - North Pacific Ocean, 47 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Wednesday, 2 January 1957 at 02:17 (GMT)

Very strong magnitude 6.7 earthquake at 20 km depth

Date & time: 2 Jan 1957 02:17:42 UTC
Magnitude: 6.7
Depth: 20.0 km
Epicenter latitude / longitude: 52.319°N / 168.396°W (North Pacific Ocean, Alaska, United States)
Nearest volcano: Vsevidof (92 km / 57 mi)
Nearby towns and cities:
76 km (47 mi) SSE of Nikolski (pop: 18) --> See nearby quakes!
213 km (132 mi) SW of Unalaska (pop: 4,490) --> See nearby quakes!
267 km (166 mi) SW of Akutan (pop: 1,040) --> See nearby quakes!
395 km (246 mi) E of Atka (pop: 64) --> See nearby quakes!
433 km (269 mi) SW of False Pass (pop: 40) --> See nearby quakes!
491 km (305 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
503 km (313 mi) SW of King Cove (pop: 1,010) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1014 joules (197 gigawatt hours, equivalent to 1.7 x 105 tons of TNT or 10.6 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 6.720 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.
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Aftershocks

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Recorded aftershocks, latest first (24 quakes):
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Earlier earthquakes in the same area

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