Very strong mag. 6.1 earthquake - Gulf of Alaska, 3.8 mi north of Twoheaded Island, Kodiak Island County, Alaska, USA, on Tuesday, 29 May 1990 at 18:31 (GMT)
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Very strong magnitude 6.1 earthquake at 25 km depth
Date & time: 29 May 1990 18:31:12 UTC
Depth: 24.7 km
Epicenter latitude / longitude: 56.956°N / 153.569°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Unnamed 57.87°N/155.42°W (150 km / 93 mi)
Nearby towns and cities:
32 km (20 mi) SSW of Old Harbor (pop: 221) --> See nearby quakes!
36 km (23 mi) E of Akhiok (pop: 72) --> See nearby quakes!
97 km (60 mi) SW of Womens Bay (pop: 719) --> See nearby quakes!
107 km (67 mi) SSW of Kodiak Station (pop: 1,300) --> See nearby quakes!
116 km (72 mi) SW of Kodiak (pop: 6,250) --> See nearby quakes!
321 km (200 mi) SSW of Homer (pop: 5,520) --> See nearby quakes!
407 km (253 mi) SSW of Kalifornsky (pop: 7,850) --> See nearby quakes!
419 km (260 mi) SSW of Soldotna (pop: 4,540) --> See nearby quakes!
422 km (262 mi) SSW of Kenai (pop: 7,660) --> See nearby quakes!
430 km (267 mi) SSW of Sterling (pop: 5,620) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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 6.1||25 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 (3 quakes):
- 11 Nov 1990 04:43 UTC| M 4.1 |61.9 km (38.5 mi) depth|45 km (28 mi) distance| USGS | Details
- 06 Jul 1990 04:14 UTC| M 3.6 |0 km (0 mi) depth|27 km (17 mi) distance| USGS | Details
- 29 May 1990 18:46 UTC| M 4.0 |33 km (20.5 mi) depth|58 km (36 mi) distance| USGS | Details