Moderate mag. 4.8 earthquake - Gulf of Alaska, 7.1 mi west of Chernabura Island, Aleutians East County, Alaska, USA, on Wednesday, 25 September 1985 at 16:29 (GMT)
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Moderate magnitude 4.8 earthquake at 33 km depth
Date & time: 25 Sep 1985 16:29:19 UTC
Depth: 33.0 km
Epicenter latitude / longitude: 54.758°N / 159.723°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Stepovak Bay 1 (126 km / 78 mi)
Nearby towns and cities:
81 km (50 mi) SE of Sand Point (pop: 1,060) --> See nearby quakes!
133 km (83 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
167 km (104 mi) SE of Nelson Lagoon (pop: 52) --> See nearby quakes!
169 km (105 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
177 km (110 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
188 km (117 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
197 km (123 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
237 km (147 mi) E of False Pass (pop: 40) --> See nearby quakes!
253 km (157 mi) SSW of Port Heiden (pop: 98) --> See nearby quakes!
398 km (247 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) 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 4.8||33 km||south of Alaska (USA)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.