Moderate mag. 4.2 earthquake - North Pacific Ocean, 82 mi southeast of Sand Point, Alaska, USA, on 19 Oct 10:17 pm (GMT -11) -
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 12 heures earlier.
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Séisme modéré magnitude 4.2 at 20 km depth
20 Oct 10:01 UTC: Premier à signaler: USGS après 44 minutes.
Date & time: 20 Oct 2020 09:17:47 UTC -
Local time at epicenter: 19 Oct 10:17 pm (GMT -11)
Magnitude: 4.2
Profondeur: 20.1 km
Epicenter latitude / longitude: 54.2707°N / 159.594°W
(Océan Pacifique Nord, Alaska, États-Unis)Volcan le plus près: Dana (184 km / 114 mi)
Nearby towns and cities:
132 km SSE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
185 km S de Perryville (pop: 113) --> Voir les séismes à proximité!
196 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
225 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
227 km SSO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
236 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
402 km E de Akutan (pop: 1,040) --> Voir les séismes à proximité!
455 km E de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
583 km SO de Kodiak Station (pop: 1,300) --> Voir les séismes à proximité!
593 km SO de Kodiak (pop: 6,250) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Clear Sky
7.9°C (46 F), humidity: 62%, wind: 4 m/s (7 kts) from N
Primary data source: USGS (United States Geological Survey)Clear Sky
7.9°C (46 F), humidity: 62%, wind: 4 m/s (7 kts) from NEstimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) 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 | Profondeur | Location | Source |
| M 4.2 | 20 km | 132 Km SSE of Sand Point, Alaska, USA | USGS |
| M 4.2 | 20 km | South Of Alaska, USA | EMSC |
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