Mag. 2.8 earthquake - Gulf of Alaska, 32 mi east of Simeonof Island, Aleutians East County, Alaska, USA, on Wednesday, 22 July 2020 at 10:27 (GMT) -
This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 4 hours earlier.
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Minor magnitude 2.8 earthquake at 22 km depth
22 Jul 12:08 UTC: First to report: USGS after 1 hour and 40 minutes.
Magnitude: 2.8
Depth: 22.3 km
Epicenter latitude / longitude: 54.9912°N / 158.4685°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Kupreanof (141 km / 88 mi)
Nearby towns and cities:
111 km (69 mi) SSE of Perryville (pop: 113) --> See nearby quakes!
135 km (84 mi) ESE of Sand Point (pop: 1,060) --> See nearby quakes!
142 km (88 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
145 km (90 mi) S of Chignik (pop: 87) --> See nearby quakes!
206 km (128 mi) ESE of Nelson Lagoon (pop: 52) --> See nearby quakes!
6061 km (3766 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6061 km (3766 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
52 km (32 mi) ENE of Simeonof Island --> See nearby quakes!
73 km (45 mi) ENE of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 109 joules (278 kilowatt hours, equivalent to 0.239 tons of TNT) 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 2.8 | 22 km | 110 km SSE of Perryville, Alaska (USA) | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.
There are no user reports for this quake yet. If you felt it be the first to report it!
Earlier earthquakes in the same area
Mag. 2.8 earthquake - Gulf of Alaska, 32 mi east of Simeonof Island, Aleutians East County, Alaska, USA, on Wednesday, 22 July 2020 at 10:27 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
