Very strong mag. 6.5 earthquake - Gulf of Alaska, 43 mi southeast of Sitkinak Island, Kodiak Island County, Alaska, USA, on Tuesday, 1 April 1941 at 10:41 (GMT)

Very strong mag. 6.5 earthquake - Gulf of Alaska, 43 mi southeast of Sitkinak Island, Kodiak Island County, Alaska, USA, on Tuesday, 1 April 1941 at 10:41 (GMT)

Very strong magnitude 6.5 earthquake at 15 km depth

Date & time: 1 Apr 1941 10:41:04 UTC
Magnitude: 6.5
Depth: 15.0 km
Epicenter latitude / longitude: 56.025°N / 153.538°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Unnamed 57.87°N/155.42°W (235 km / 146 mi)
Nearby towns and cities:
110 km (68 mi) SSE of Akhiok (pop: 72) --> See nearby quakes!
132 km (82 mi) S of Old Harbor (pop: 221) --> See nearby quakes!
192 km (119 mi) SSW of Womens Bay (pop: 719) --> See nearby quakes!
202 km (125 mi) SSW of Kodiak Station (pop: 1,300) --> See nearby quakes!
208 km (129 mi) SSW of Kodiak (pop: 6,250) --> See nearby quakes!
209 km (130 mi) S of Port Lions (pop: 197) --> See nearby quakes!
419 km (260 mi) SSW of Homer (pop: 5,520) --> See nearby quakes!
429 km (267 mi) SSW of Anchor Point (pop: 1,930) --> See nearby quakes!
433 km (269 mi) SSW of Fritz Creek (pop: 1,930) --> See nearby quakes!
443 km (275 mi) ENE of Sand Point (pop: 1,060) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 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 6.515 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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Aftershocks

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