Very strong mag. 6.0 earthquake - North Pacific Ocean, 137 mi south of Unalaska, Aleutians West (CA) County, Alaska, USA, on Sunday, 17 March 1957 at 16:17 (GMT)
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Very strong magnitude 6.0 earthquake at 15 km depth
Date & time: 17 Mar 1957 16:17:16 UTC
Depth: 15.0 km
Epicenter latitude / longitude: 51.915°N / 165.96°W (North Pacific Ocean, United States)
Nearest volcano: Okmok (222 km / 138 mi)
Nearby towns and cities:
221 km (137 mi) S of Unalaska (pop: 4,490) --> See nearby quakes!
227 km (141 mi) ESE of Nikolski (pop: 18) --> See nearby quakes!
247 km (154 mi) S of Akutan (pop: 1,040) --> See nearby quakes!
368 km (229 mi) SSW of False Pass (pop: 40) --> See nearby quakes!
422 km (262 mi) SSW of Cold Bay (pop: 123) --> See nearby quakes!
425 km (264 mi) SW of King Cove (pop: 1,010) --> See nearby quakes!
524 km (325 mi) SW of Sand Point (pop: 1,060) --> 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
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.
|M 6.0||15 km||south of the Aleutian Islands (USA)||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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More infoRecorded aftershocks, latest first (1 quakes):
- 19 Apr 1957 22:19 UTC| M 6.5 |14.5 km (9 mi) depth|44 km (27 mi) distance| USGS | Very strong mag. 6.5 earthquake - North Pacific Ocean, 114 mi south of Unalaska, Aleutians West (CA) County, Alaska, USA, on Friday, 19 April 1957 at 22:19 (GMT)