Very strong mag. 6.5 earthquake - Gulf of Alaska, 35 mi southeast of Twoheaded Island, Kodiak Island County, Alaska, USA, on Wednesday, 23 June 1965 at 11:09 (GMT)
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Very strong magnitude 6.5 earthquake at 20 km depth
Date & time: 23 Jun 1965 11:09:17 UTC
Depth: 20.0 km
Epicenter latitude / longitude: 56.543°N / 152.948°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Unnamed 57.87°N/155.42°W (210 km / 130 mi)
Nearby towns and cities:
77 km (48 mi) SSE of Old Harbor (pop: 221) --> See nearby quakes!
138 km (86 mi) S of Kodiak Station (pop: 1,300) --> See nearby quakes!
142 km (88 mi) SSW of Kodiak (pop: 6,250) --> See nearby quakes!
354 km (220 mi) SSW of Homer (pop: 5,520) --> See nearby quakes!
366 km (227 mi) S of Anchor Point (pop: 1,930) --> See nearby quakes!
368 km (229 mi) SSW of Fritz Creek (pop: 1,930) --> See nearby quakes!
442 km (274 mi) SSW of Kalifornsky (pop: 7,850) --> See nearby quakes!
452 km (281 mi) SSW of Soldotna (pop: 4,540) --> See nearby quakes!
457 km (284 mi) SSW of Kenai (pop: 7,660) --> See nearby quakes!
462 km (287 mi) SSW of Sterling (pop: 5,620) --> 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
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 6.5||20 km||Kodiak Island region, Alaska (USA)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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More infoRecorded aftershocks, latest first (1 quakes):
- 12 Oct 1965 13:41 UTC| M 5.6 |25 km (15.5 mi) depth|57 km (35 mi) distance| USGS | Details