Very strong mag. 6.7 earthquake - North Pacific Ocean, 45 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Wednesday, 2 January 1957 at 03:48 (GMT)

Very strong mag. 6.7 earthquake - North Pacific Ocean, 45 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Wednesday, 2 January 1957 at 03:48 (GMT)

Very strong magnitude 6.7 earthquake at 20 km depth

Date & time: 2 Jan 1957 03:48:53 UTC
Magnitude: 6.7
Depth: 20.0 km
Epicenter latitude / longitude: 52.67°N / 167.889°W (North Pacific Ocean, Alaska, United States)
Nearest volcano: Recheschnoi (70 km / 43 mi)
Nearby towns and cities:
72 km (45 mi) ESE of Nikolski (pop: 18) --> See nearby quakes!
161 km (100 mi) SW of Unalaska (pop: 4,490) --> See nearby quakes!
215 km (133 mi) SW of Akutan (pop: 1,040) --> See nearby quakes!
382 km (237 mi) SW of False Pass (pop: 40) --> See nearby quakes!
431 km (268 mi) E of Atka (pop: 64) --> See nearby quakes!
439 km (273 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
452 km (281 mi) SW of King Cove (pop: 1,010) --> See nearby quakes!
570 km (354 mi) SW of Nelson Lagoon (pop: 52) --> 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 (22 quakes):
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Earlier earthquakes in the same area

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