Mag. 4.0 earthquake - Gulf of Alaska, 51 mi southwest of Sand Point, USA, on Wednesday, 29 July 2020 at 01:03 (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 7 days earlier.
Mag. 4.0 earthquake - Gulf of Alaska, 51 mi southwest of Sand Point, USA, on Wednesday, 29 July 2020 at 01:03 (GMT)

Light magnitude 4.0 earthquake at 40 km depth

29 Jul 01:18 UTC: First to report: USGS after 15 minutes.
Date & time: 29 Jul 2020 01:03:23 UTC -
Magnitude: 4
Depth: 40.1 km
Epicenter latitude / longitude: 54.6631°N / 161.0329°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dutton (97 km / 60 mi)
Nearby towns and cities:
82 km (51 mi) SSW of Sand Point (pop: 1,060) --> See nearby quakes!
93 km (58 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
123 km (76 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
149 km (93 mi) S of Nelson Lagoon (pop: 52) --> See nearby quakes!
154 km (96 mi) E of False Pass (pop: 40) --> See nearby quakes!
183 km (114 mi) SW of Perryville (pop: 113) --> See nearby quakes!
313 km (194 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
368 km (229 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
6228 km (3870 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6228 km (3870 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
63 km (39 mi) SSE of Wosnesenski Island --> See nearby quakes!
96 km (60 mi) W of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 4.040 km82 km SSW of Sand Point, Alaska (USA)USGS
M 4.060 kmAlaska 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!
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Earlier earthquakes in the same area

Mag. 4.0 earthquake - Gulf of Alaska, 51 mi southwest of Sand Point, USA, on Wednesday, 29 July 2020 at 01:03 (GMT)
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