Moderate mag. 4.9 earthquake - Gulf of Alaska, 9.4 mi northwest of Chernabura Island, Aleutians East County, Alaska, USA, on Thursday, 10 October 1985 at 22:52 (GMT)

Moderate mag. 4.9 earthquake - Gulf of Alaska, 9.4 mi northwest of Chernabura Island, Aleutians East County, Alaska, USA, on Thursday, 10 October 1985 at 22:52 (GMT)

Moderate magnitude 4.9 earthquake at 33 km depth

Date & time: 10 Oct 1985 22:52:59 UTC
Magnitude: 4.9
Depth: 32.7 km
Epicenter latitude / longitude: 54.878°N / 159.725°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Stepovak Bay 1 (113 km / 70 mi)
Nearby towns and cities:
71 km (44 mi) SE of Sand Point (pop: 1,060) --> See nearby quakes!
121 km (75 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
156 km (97 mi) SE of Nelson Lagoon (pop: 52) --> See nearby quakes!
165 km (102 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
167 km (104 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
176 km (109 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
194 km (121 mi) E of Cold Bay (pop: 123) --> See nearby quakes!
236 km (147 mi) E of False Pass (pop: 40) --> See nearby quakes!
240 km (149 mi) SSW of Port Heiden (pop: 98) --> See nearby quakes!
399 km (248 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 tons of TNT) 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 4.933 kmsouth of Alaska (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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