Strong mag. 6.0 earthquake - North Pacific Ocean, 37 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Friday, 29 March 1957 at 22:49 (GMT)

Strong mag. 6.0 earthquake - North Pacific Ocean, 37 mi southeast of Nikolski, Aleutians West (CA) County, Alaska, USA, on Friday, 29 March 1957 at 22:49 (GMT)

Strong magnitude 6.0 earthquake at 25 km depth

Date & time: 29 Mar 1957 22:49:56 UTC
Magnitude: 6
Depth: 25.0 km
Epicenter latitude / longitude: 52.559°N / 168.251°W (North Pacific Ocean, Alaska, United States)
Nearest volcano: Recheschnoi (69 km / 43 mi)
Nearby towns and cities:
59 km (37 mi) SE of Nikolski (pop: 18) --> See nearby quakes!
186 km (115 mi) SW of Unalaska (pop: 4,490) --> See nearby quakes!
187 km (116 mi) SW of Dutch Harbor (pop: 4,380) --> See nearby quakes!
240 km (149 mi) SW of Akutan (pop: 1,040) --> See nearby quakes!
406 km (252 mi) E of Atka (pop: 64) --> See nearby quakes!
408 km (254 mi) SW of False Pass (pop: 40) --> See nearby quakes!
465 km (289 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
479 km (297 mi) SW of King Cove (pop: 1,010) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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 6.025 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 (5 quakes):
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Earlier earthquakes in the same area

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