Mag. 3.1 earthquake - Gulf of Alaska, 58 mi south of Sand Point, Alaska, USA, on Monday, 17 August 2020 at 03:56 (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 weeks earlier.
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Minor magnitude 3.1 earthquake at 35 km depth
17 Aug 04:08 UTC: First to report: USGS after 12 minutes.
Magnitude: 3.1
Depth: 35.0 km
Epicenter latitude / longitude: 54.5123°N / 160.7995°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Dutton (119 km / 74 mi)
Nearby towns and cities:
94 km (58 mi) S of Sand Point (pop: 1,060) --> See nearby quakes!
115 km (71 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
144 km (90 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
168 km (104 mi) S of Nelson Lagoon (pop: 52) --> See nearby quakes!
172 km (107 mi) E of False Pass (pop: 40) --> See nearby quakes!
188 km (117 mi) SW of Perryville (pop: 113) --> See nearby quakes!
233 km (145 mi) SW of Chignik Lake (pop: 73) --> See nearby quakes!
249 km (155 mi) SW of Chignik (pop: 87) --> See nearby quakes!
6220 km (3865 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6220 km (3865 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
83 km (52 mi) SSW of Shumagin s Island --> See nearby quakes!
86 km (53 mi) WSW of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 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 3.1 | 35 km | 93 km SSW of Sand Point, Alaska (USA) | USGS |
| M 3.0 | 5 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. 3.1 earthquake - Gulf of Alaska, 58 mi south of Sand Point, Alaska, USA, on Monday, 17 August 2020 at 03:56 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
