Very strong mag. 6.3 earthquake - North Pacific Ocean, 91 mi south of Unalaska, Aleutians West (CA) County, Alaska, USA, on Wednesday, 4 June 1958 at 14:29 (GMT)
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Very strong magnitude 6.3 earthquake at 25 km depth
Date & time: 4 Jun 1958 14:29:55 UTC
Magnitude: 6.3
Depth: 25.0 km
Epicenter latitude / longitude: 52.629°N / 167.237°W
(North Pacific Ocean, Alaska, United States)Nearest volcano: Recheschnoi (105 km / 65 mi)
Nearby towns and cities:
115 km (71 mi) ESE of Nikolski (pop: 18) --> See nearby quakes!
146 km (91 mi) SSW of Unalaska (pop: 4,490) --> See nearby quakes!
193 km (120 mi) SSW of Akutan (pop: 1,040) --> See nearby quakes!
353 km (219 mi) SW of False Pass (pop: 40) --> See nearby quakes!
410 km (255 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
421 km (262 mi) SW of King Cove (pop: 1,010) --> See nearby quakes!
542 km (337 mi) SW of Nelson Lagoon (pop: 52) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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.
| Magnitude | Depth | Location | Source |
| M 6.3 | 25 km | Fox Islands, Aleutian Islands, Alaska (USA) | USGS |
User reports for this quake
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Aftershocks
More info
Recorded aftershocks, latest first (2 quakes):- 12 Jun 1958 20:53 UTC| M 6.3 |35 km (21.7 mi) depth|17 km (11 mi) distance| USGS | Very strong mag. 6.3 earthquake - North Pacific Ocean, 86 mi south of Unalaska, Aleutians West (CA) County, Alaska, USA, on Thursday, 12 June 1958 at 20:53 (GMT)
- 08 Jun 1958 00:38 UTC| M 5.8 |35 km (21.7 mi) depth|65 km (40 mi) distance| USGS | Details
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