Moderate mag. 4.2 earthquake - Gulf of Alaska, 15 mi east of Simeonof Island, Aleutians East County, Alaska, USA, on Wednesday, 22 July 2020 at 06:30 (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 17 minutes earlier.
Moderate mag. 4.2 earthquake - Gulf of Alaska, 15 mi east of Simeonof Island, Aleutians East County, Alaska, USA, on Wednesday, 22 July 2020 at 06:30 (GMT)

Séisme modéré magnitude 4.2 at 17 km depth

22 Jul 06:46 UTC: Premier à signaler: USGS après 16 minutes.
Jul 22 08:02: Magnitude recalculée de 4.0 à 4.2.
Profondeur recalculée de 4.7 à 17.2 km.
Date & time: 22 Jul 2020 06:30:01 UTC -
Magnitude: 4.2
Profondeur: 17.2 km
Epicenter latitude / longitude: 54.8879°N / 158.8859°W (Gulf of Alaska, Alaska, États-Unis)
Volcan le plus près: Stepovak Bay 2 (121 km / 75 mi)
Nearby towns and cities:
114 km ESE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
115 km S de Perryville (pop: 113) --> Voir les séismes à proximité!
152 km S de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
160 km S de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
220 km E de King Cove (pop: 1,010) --> Voir les séismes à proximité!
229 km S de Port Heiden (pop: 98) --> Voir les séismes à proximité!
453 km ENE de Akutan (pop: 1,040) --> Voir les séismes à proximité!
502 km SO de Kodiak Station (pop: 1,300) --> Voir les séismes à proximité!
508 km ENE de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
513 km SO de Kodiak (pop: 6,250) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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.
MagnitudeProfondeurLocationSource
M 4.217 km114 km ESE of Sand Point, Alaska (USA)USGS
M 4.230 kmSouth 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!
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Earlier earthquakes in the same area

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