Strong mag. 6.2 earthquake - Bering Sea, 37 mi southeast of Herbert Island, Aleutians West County, Alaska, USA, on Wednesday, 23 October 1957 at 05:56 (GMT)
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Strong magnitude 6.2 earthquake at 35 km depth
Date & time: 23 Oct 1957 05:56:57 UTC
Magnitude: 6.2
Depth: 35.0 km
Epicenter latitude / longitude: 52.308°N / 169.636°W

Nearest volcano: Herbert (58 km / 36 mi)
Nearby towns and cities:
88 km (54 mi) SW of Nikolski (pop: 18) --> See nearby quakes!
271 km (168 mi) SW of Unalaska (pop: 4,490) --> See nearby quakes!
311 km (193 mi) E of Atka (pop: 64) --> See nearby quakes!
327 km (203 mi) SW of Akutan (pop: 1,040) --> See nearby quakes!
499 km (310 mi) WSW of False Pass (pop: 40) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 atomic bombs!) More info
Data for the same earthquake reported by different agencies
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Magnitude | Depth | Location | Source |
M 6.2 | 35 km | Fox Islands, Aleutian Islands, Alaska (USA) | USGS |
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More info
Recorded aftershocks, latest first (2 quakes):- 13 Dec 1957 20:26 UTC| M 6.0 |25 km (15.5 mi) depth|34 km (21 mi) distance| USGS | Strong mag. 6.0 earthquake - North Pacific Ocean, 183 mi southwest of Unalaska, Aleutians West (CA) County, Alaska, USA, on Friday, 13 December 1957 at 20:26 (GMT)
- 03 Dec 1957 21:46 UTC| M 5.6 |0 km (0 mi) depth|39 km (24 mi) distance| USGS | Details
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