Light mag. 4.2 earthquake - Gulf of Alaska, 24 mi east of Kodiak Island, Alaska, USA, on Wednesday, 21 June 1978 at 02:37 (GMT)

Light mag. 4.2 earthquake - Gulf of Alaska, 24 mi east of Kodiak Island, Alaska, USA, on Wednesday, 21 June 1978 at 02:37 (GMT)

Light magnitude 4.2 earthquake at 83 km depth

Date & time: 21 Jun 1978 02:37:55 UTC
Magnitude: 4.2
Depth: 83.0 km
Epicenter latitude / longitude: 57.291°N / 152.857°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Steller (156 km / 97 mi)
Nearby towns and cities:
29 km (18 mi) ENE of Old Harbor (pop: 221) --> See nearby quakes!
45 km (28 mi) SSW of Womens Bay (pop: 719) --> See nearby quakes!
49 km (31 mi) SW of Chiniak (pop: 47) --> See nearby quakes!
55 km (34 mi) SSW of Kodiak Station (pop: 1,300) --> See nearby quakes!
62 km (38 mi) SSW of Kodiak (pop: 6,250) --> See nearby quakes!
64 km (40 mi) S of Port Lions (pop: 197) --> See nearby quakes!
272 km (169 mi) SSW of Homer (pop: 5,520) --> See nearby quakes!
468 km (291 mi) SSW of Anchorage (pop: 298,700) --> See nearby quakes!
485 km (302 mi) SSW of Eagle River (pop: 24,800) --> See nearby quakes!
485 km (302 mi) SSW of Eagle River (Anchorage) (pop: 24,800) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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
4.283 kmKodiak Island region, 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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