Mag. 3.4 earthquake - Gulf of Alaska, 80 mi east of Sand Point, Alaska, USA, on Sunday, 9 August 2020 at 12:39 (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 3 weeks earlier.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US | Alaska | Alaska | Washington DC
Minor magnitude 3.4 earthquake at 19 km depth
9 Aug 19:12 UTC: First to report: USGS after 7 hours.
Magnitude: 3.4
Depth: 18.5 km
Epicenter latitude / longitude: 54.8836°N / 158.6366°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Stepovak Bay 2 (145 km / 90 mi)
Nearby towns and cities:
119 km (74 mi) SSE of Perryville (pop: 113) --> See nearby quakes!
129 km (80 mi) ESE of Sand Point (pop: 1,060) --> See nearby quakes!
153 km (95 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
158 km (98 mi) S of Chignik (pop: 87) --> See nearby quakes!
204 km (127 mi) SE of Nelson Lagoon (pop: 52) --> See nearby quakes!
229 km (142 mi) S of Port Heiden (pop: 98) --> See nearby quakes!
236 km (147 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
262 km (163 mi) E of Cold Bay (pop: 123) --> See nearby quakes!
6075 km (3775 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6075 km (3775 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
40 km (25 mi) E of Simeonof Island --> See nearby quakes!
60 km (37 mi) E of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 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 3.4 | 19 km | 118 km SSE of Perryville, Alaska (USA) | USGS |
| M 3.4 | 18 km | South Of Alaska (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. 3.4 earthquake - Gulf of Alaska, 80 mi east of Sand Point, Alaska, USA, on Sunday, 9 August 2020 at 12:39 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
