Mag. 3.5 earthquake - 33 mi south of Sand Point, Aleutians East County, Alaska, on Tuesday, 4 August 2020 at 05:18 (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 13 days earlier.
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Minor magnitude 3.5 earthquake at 30 km depth
4 Aug 05:49 UTC: First to report: USGS after 31 minutes.
Magnitude: 3.5
Depth: 30.1 km
Epicenter latitude / longitude: 54.8744°N / 160.2709°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Dana (105 km / 65 mi)
Nearby towns and cities:
53 km (33 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
132 km (82 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
135 km (84 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
138 km (86 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
160 km (99 mi) E of Cold Bay (pop: 123) --> See nearby quakes!
181 km (112 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
197 km (122 mi) SW of Chignik (pop: 87) --> See nearby quakes!
365 km (227 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
6174 km (3836 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6174 km (3836 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
34 km (21 mi) S of Shumagin s Island --> See nearby quakes!
47 km (29 mi) WNW of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1010 joules (3.12 megawatt hours, equivalent to 2.68 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 3.5 | 30 km | Alaska Peninsula (USA) | EMSC |
| M 3.5 | 30 km | 53 km SSE of Sand Point, 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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Earlier earthquakes in the same area
Mag. 3.5 earthquake - 33 mi south of Sand Point, Aleutians East County, Alaska, on Tuesday, 4 August 2020 at 05:18 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
