Strong mag. 6.5 earthquake - Gulf of Alaska, 13 mi west of Sutwik Island, Lake and Peninsula County, Alaska, USA, on Sunday, 28 September 1941 at 05:34 (GMT)
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Strong magnitude 6.5 earthquake at 100 km depth
Magnitude: 6.5
Depth: 100.0 km
Epicenter latitude / longitude: 56.5°N / 157.5°W

Nearest volcano: Aniakchak (59 km / 37 mi)
Nearby towns and cities:
60 km (37 mi) ENE of Chignik (pop: 87) --> See nearby quakes!
82 km (51 mi) ENE of Chignik Lake (pop: 73) --> See nearby quakes!
85 km (53 mi) SE of Port Heiden (pop: 98) --> See nearby quakes!
121 km (75 mi) NE of Perryville (pop: 113) --> See nearby quakes!
227 km (141 mi) NE of Sand Point (pop: 1,060) --> See nearby quakes!
339 km (211 mi) WSW of Kodiak (pop: 6,250) --> See nearby quakes!
341 km (212 mi) ENE of King Cove (pop: 1,010) --> See nearby quakes!
494 km (307 mi) SW of Homer (pop: 5,520) --> See nearby quakes!
5951 km (3698 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
5951 km (3698 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> 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.
Magnitude | Depth | Location | Source |
M 6.5 | 1 km | Alaska Peninsula (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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So far, no aftershocks have been registered.
There are no user reports for this quake yet. If you felt it Aftershocks of the 6.5 quake Gulf of Alaska, 13 mi west of Sutwik Island, Lake and Peninsula County, Alaska, USA, 28 September 1941 05:34 GMT
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Recorded aftershocks, latest first (0 quakes):So far, no aftershocks have been registered.
Earlier earthquakes in the same area since 1900
Strong mag. 6.5 earthquake - Gulf of Alaska, 13 mi west of Sutwik Island, Lake and Peninsula County, Alaska, USA, on Sunday, 28 September 1941 at 05:34 (GMT)- Date / time UTC| Mag |Depth|Age|Distance| Details
- 10 Nov 1938 20:18| 8.2 |35km / 22mi|82 years ago|153km / 95mi| Alaska Peninsula (USA)
- 31 May 1917 08:47| 7.4 |35km / 22mi|104 years ago|212km / 132mi| South of Alaska (USA)
- 07 Nov 1912 07:40| 7.3 |90km / 56mi|108 years ago|188km / 117mi| Kodiak Island Region, Alaska (USA)
- 23 Dec 1906 17:22| 7.3 |unknown|114 years ago|223km / 139mi| Kodiak Island Region, Alaska (USA)
- 04 May 1923 16:26| 7.0 |25km / 16mi|98 years ago|85km / 53mi| South of Alaska (USA)
- 17 Nov 1938 03:54| 6.9 |35km / 22mi|82 years ago|128km / 79mi| Alaska Peninsula (USA)
- 05 Dec 1912 12:27| 6.9 |90km / 56mi|108 years ago|239km / 149mi| Kodiak Island Region, Alaska (USA)
- 13 May 1910 07:58| 6.8 |100km / 62mi|111 years ago|162km / 101mi| Bristol Bay (USA)
- 28 Jul 1934 21:37| 6.7 |20km / 12.4mi|87 years ago|105km / 65mi| South of Alaska (USA)
- 11 Nov 1938 00:57| 6.6 |35km / 22mi|82 years ago|181km / 112mi| Alaska Peninsula (USA)
- 16 Oct 1932 12:08| 6.6 |25km / 16mi|88 years ago|225km / 140mi| South of Alaska (USA)
- 22 Aug 1907 22:24| 6.5 |120km / 75mi|113 years ago|221km / 137mi| Bristol Bay (USA)
- 09 Dec 1938 03:55| 6.4 |25km / 16mi|82 years ago|246km / 153mi| Kodiak Island Region, Alaska (USA)
- 30 Oct 1932 20:47| 6.3 |35km / 22mi|88 years ago|218km / 136mi| South of Alaska (USA)
Hint: Click on Date/Time to show latest first