Mag. 3.4 earthquake - Gulf of Alaska, 25 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Tuesday, 28 July 2020 at 08:27 (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 6 days earlier.
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Minor magnitude 3.4 earthquake at 21 km depth
29 Jul 07:06 UTC: First to report: USGS after 23 hours.
Magnitude: 3.4
Depth: 21.4 km
Epicenter latitude / longitude: 54.82°N / 160.294°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Dana (108 km / 67 mi)
Nearby towns and cities:
59 km (37 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!
141 km (88 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
143 km (89 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
160 km (99 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
187 km (116 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
199 km (124 mi) SW of Chignik Lagoon (pop: 78) --> See nearby quakes!
200 km (124 mi) E of False Pass (pop: 40) --> See nearby quakes!
6177 km (3838 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6177 km (3838 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
40 km (25 mi) S of Shumagin s Island --> See nearby quakes!
48 km (30 mi) W 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 | 21 km | 58 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.
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, 25 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Tuesday, 28 July 2020 at 08:27 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
