Mag. 3.6 earthquake - Gulf of Alaska, 46 mi southeast of Perryville, Alaska, USA, on Monday, 28 September 2020 at 06:32 (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 10 weeks earlier.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US | Alaska | Alaska | Washington DC
Minor magnitude 3.6 earthquake at 19 km depth
28 Sep 16:38 UTC: First to report: USGS after 10 hours.
Magnitude: 3.6
Depth: 18.7 km
Epicenter latitude / longitude: 55.4707°N / 158.2551°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Veniaminof (105 km / 65 mi)
Nearby towns and cities:
74 km (46 mi) SE of Perryville (pop: 113) --> See nearby quakes!
92 km (57 mi) S of Chignik (pop: 87) --> See nearby quakes!
93 km (58 mi) SSE of Chignik Lake (pop: 73) --> See nearby quakes!
142 km (89 mi) E of Sand Point (pop: 1,060) --> See nearby quakes!
165 km (103 mi) S of Port Heiden (pop: 98) --> See nearby quakes!
194 km (121 mi) ESE of Nelson Lagoon (pop: 52) --> See nearby quakes!
261 km (162 mi) ENE of King Cove (pop: 1,010) --> See nearby quakes!
441 km (274 mi) SW of Kodiak (pop: 6,250) --> See nearby quakes!
6031 km (3748 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6031 km (3748 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
88 km (55 mi) NE of Little Koniuji Island --> See nearby quakes!
112 km (70 mi) NE of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 1010 joules (4.4 megawatt hours, equivalent to 3.79 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 3.6 | 19 km | 74 Km SE 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.
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. 3.6 earthquake - Gulf of Alaska, 46 mi southeast of Perryville, Alaska, USA, on Monday, 28 September 2020 at 06:32 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
