Light mag. 4.0 earthquake - Gulf of Alaska, 71 mi southeast of Sand Point, Alaska, USA, on Tuesday, 20 October 2020 at 08:16 (GMT) -

This quake was likely an aftershock of the 7.6 quake Gulf of Alaska, 60 mi southeast of Sand Point, Aleutians East County, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 11 heures earlier.
Light mag. 4.0 earthquake - Gulf of Alaska, 71 mi southeast of Sand Point, Alaska, USA, on Tuesday, 20 October 2020 at 08:16 (GMT)

Séisme faible magnitude 4.0 at 19 km depth

21 Oct 07:26 UTC: Premier à signaler: USGS après 23 heures.
Date & time: 20 Oct 2020 08:16:36 UTC -
Magnitude: 4
Profondeur: 19.3 km
Epicenter latitude / longitude: 54.3983°N / 159.7444°W (Gulf of Alaska, Alaska, États-Unis)
Volcan le plus près: Dana (167 km / 104 mi)
Nearby towns and cities:
115 km SSE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
173 km SSO de Perryville (pop: 113) --> Voir les séismes à proximité!
181 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
201 km SSE de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
210 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
216 km SSO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
393 km E de Akutan (pop: 1,040) --> Voir les séismes à proximité!
446 km E de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
580 km SO de Kodiak Station (pop: 1,300) --> Voir les séismes à proximité!
591 km SO de Kodiak (pop: 6,250) --> Voir les séismes à proximité!
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.
MagnitudeProfondeurLocationSource
M 4.019 km115 Km SSE of Sand Point, Alaska, USAUSGS

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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