Strong mag. 5.4 earthquake - Gulf of Alaska, 60 mi southeast of King Cove, Aleutians East County, Alaska, USA, on Friday, 22 February 1985 at 20:38 (GMT)

Strong mag. 5.4 earthquake - Gulf of Alaska, 60 mi southeast of King Cove, Aleutians East County, Alaska, USA, on Friday, 22 February 1985 at 20:38 (GMT)

Strong magnitude 5.4 earthquake at 33 km depth

Date & time: 22 Feb 1985 20:38:46 UTC
Magnitude: 5.4
Depth: 33.0 km
Epicenter latitude / longitude: 54.476°N / 161.211°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dutton (103 km / 64 mi)
Nearby towns and cities:
96 km (60 mi) SE of King Cove (pop: 1,010) --> See nearby quakes!
106 km (66 mi) SSW of Sand Point (pop: 1,060) --> See nearby quakes!
125 km (78 mi) SE of Cold Bay (pop: 123) --> See nearby quakes!
148 km (92 mi) ESE of False Pass (pop: 40) --> See nearby quakes!
170 km (105 mi) S of Nelson Lagoon (pop: 52) --> See nearby quakes!
207 km (128 mi) SW of Perryville (pop: 113) --> See nearby quakes!
251 km (156 mi) SW of Chignik Lake (pop: 73) --> See nearby quakes!
265 km (165 mi) SW of Chignik Lagoon (pop: 78) --> See nearby quakes!
299 km (186 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
353 km (219 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 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 5.433 kmAlaska Peninsula (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

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Aftershocks

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Recorded aftershocks, latest first (0 quakes):
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Earlier earthquakes in the same area

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