Moderate mag. 5.5 earthquake - Gulf of Alaska, 42 mi east of King Cove, Aleutians East County, Alaska, USA, on Saturday, 8 August 2020 at 14:42 (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 2 weeks earlier.
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Moderate magnitude 5.5 earthquake at 42 km depth
8 Aug 15:03 UTC: First to report: USGS after 20 minutes.
Hypocenter depth recalculated from 41.7 to 42.1 km.
Hypocenter depth recalculated from 41.7 to 42.1 km.
Magnitude: 5.5
Depth: 42.1 km
Epicenter latitude / longitude: 54.8389°N / 161.3373°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Pavlof (61 km / 38 mi)
Nearby towns and cities:
67 km (42 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
77 km (48 mi) SW of Sand Point (pop: 1,060) --> See nearby quakes!
96 km (60 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
129 km (80 mi) S of Nelson Lagoon (pop: 52) --> See nearby quakes!
133 km (83 mi) E of False Pass (pop: 40) --> See nearby quakes!
183 km (114 mi) SW of Perryville (pop: 113) --> See nearby quakes!
297 km (185 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
353 km (220 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
6239 km (3877 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
6239 km (3877 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
40 km (25 mi) S of Wosnesenski Island --> See nearby quakes!
379 km (236 mi) ENE of Peter Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) 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 5.5 | 40 km | Alaska Peninsula (USA) | GFZ |
| M 5.5 | 41 km | Alaska Peninsula (USA) | EMSC |
| M 5.6 | 50 km | Alaska Peninsula (USA) | GeoAu |
| M 5.5 | 42 km | 67 km ESE of King Cove, Alaska (USA) | USGS |
| M 6.0 | 10 km | Alaska Peninsula (USA) | BMKG |
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
Moderate mag. 5.5 earthquake - Gulf of Alaska, 42 mi east of King Cove, Aleutians East County, Alaska, USA, on Saturday, 8 August 2020 at 14:42 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!
