Moderate mag. 4.5 earthquake - North Pacific Ocean, 83 mi southeast of Sand Point, Alaska, USA, on Monday, 19 Oct 2020 3:52 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 6 heures earlier.
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Séisme modéré magnitude 4.5 at 19 km depth
20 Oct 03:04 UTC: Premier à signaler: USGS après 12 minutes.
21 Oct 03:28: Profondeur recalculée de 21.9 à 18.9 km (de 13.6 à 11.7 mi). Emplacement de l'épicentre corrigé de 6.1 km (3.8 mi) au SE.
21 Oct 03:28: Profondeur recalculée de 21.9 à 18.9 km (de 13.6 à 11.7 mi). Emplacement de l'épicentre corrigé de 6.1 km (3.8 mi) au SE.
Date & time: 20 Oct 2020 02:52:24 UTC -
Local time at epicenter: lundi, 19 oct. 2020 15:52 (GMT -11)
Magnitude: 4.5
Profondeur: 18.9 km
Epicenter latitude / longitude: 54.2494°N / 159.6369°W
(Océan Pacifique Nord, Alaska, États-Unis)Volcan le plus près: Dana (179 km / 111 mi)
Nearby towns and cities:
133 km SSE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
187 km S de Perryville (pop: 113) --> Voir les séismes à proximité!
195 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
224 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
230 km SSO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
240 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
400 km E de Akutan (pop: 1,040) --> Voir les séismes à proximité!
452 km E de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
586 km SO de Kodiak Station (pop: 1,300) --> Voir les séismes à proximité!
597 km SO de Kodiak (pop: 6,250) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Clear Sky
8.2°C (47 F), humidity: 73%, wind: 6 m/s (11 kts) from NW
Primary data source: USGS (United States Geological Survey)Clear Sky
8.2°C (47 F), humidity: 73%, wind: 6 m/s (11 kts) from NWEstimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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 4.5 | 19 km | 133 Km SSE of Sand Point, Alaska, USA | USGS |
| M 3.9 | 34 km | South Of Alaska, USA | EMSC |
User reports for this quake
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