Moderate mag. 4.6 earthquake - 139 Km SSE of Sand Point, Alaska, USA, on 21 Oct 12:34 am (GMT -11) -

This quake was likely an aftershock of the 7.6 quake 97 Km SE of Sand Point, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 1 jour 15 heures earlier.
Moderate mag. 4.6 earthquake - 139 Km SSE of Sand Point, Alaska, USA, on 21 Oct 12:34 am (GMT -11)

Séisme modéré magnitude 4.6 at 17 km depth

21 Oct 11:49 UTC: Premier à signaler: USGS après 15 minutes.
Date & time: 21 Oct 2020 11:34:52 UTC -
Local time at epicenter: 21 Oct 12:34 am (GMT -11)
Magnitude: 4.6
Profondeur: 17.3 km
Epicenter latitude / longitude: 54.1499°N / 159.7837°W (Alaska, États-Unis)
Volcan le plus près: Dana (189 km / 117 mi)
Nearby towns and cities:
140 km SSE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
192 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
200 km SSO de Perryville (pop: 113) --> Voir les séismes à proximité!
221 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
225 km SSE de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
243 km SSO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
247 km ESE de False Pass (pop: 40) --> Voir les séismes à proximité!
253 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
319 km SSO de Port Heiden (pop: 98) --> Voir les séismes à proximité!
390 km E de Akutan (pop: 1,040) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Light Rain 7.4°C (45 F), humidity: 81%, wind: 13 m/s (26 kts) from E
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 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 4.617 km139 Km SSE of Sand Point, Alaska, USAUSGS
M 4.620 kmSouth Of Alaska, USAEMSC

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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