Mag. 3.0 earthquake - Gulf of Alaska, 56 mi southeast of Perryville, Lake and Peninsula County, Alaska, USA, on Thursday, 23 July 2020 at 02:12 (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 20 hours earlier.
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Minor magnitude 3.0 earthquake at 10 km depth
23 Jul 02:49 UTC: First to report: USGS after 37 minutes.
Magnitude: 3
Depth: 10.0 km
Epicenter latitude / longitude: 55.2118°N / 158.4318°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Veniaminof (122 km / 76 mi)
Nearby towns and cities:
90 km (56 mi) SSE of Perryville (pop: 113) --> See nearby quakes!
118 km (73 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
120 km (75 mi) S of Chignik (pop: 87) --> See nearby quakes!
132 km (82 mi) E of Sand Point (pop: 1,060) --> See nearby quakes!
193 km (120 mi) S of Port Heiden (pop: 98) --> See nearby quakes!
195 km (121 mi) ESE of Nelson Lagoon (pop: 52) --> See nearby quakes!
248 km (154 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
272 km (169 mi) E of Cold Bay (pop: 123) --> See nearby quakes!
6051 km (3760 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6051 km (3760 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
64 km (40 mi) NE of Simeonof Island --> See nearby quakes!
86 km (53 mi) NE of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2 x 109 joules (554 kilowatt hours, equivalent to 0.477 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 3.0 | 10 km | 89 km SSE of Perryville, Alaska (USA) | USGS |
| M 3.0 | 10 km | Alaska Peninsula (USA) | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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. 3.0 earthquake - Gulf of Alaska, 56 mi southeast of Perryville, Lake and Peninsula County, Alaska, USA, on Thursday, 23 July 2020 at 02:12 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
