Light mag. 3.7 earthquake - 51 mi southeast of Sand Point, Alaska, USA, on 20 Oct 8:24 am (GMT -8) -
This quake was likely an aftershock of the 7.6 quake Gulf of Alaska, 60 mi southeast of Санд-Пойнт, Aleutians East County, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 20 heures earlier.
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Séisme faible magnitude 3.7 at 7 km depth
20 Oct 17:13 UTC: Premier à signaler: USGS après 49 minutes.
Date & time: 20 Oct 2020 16:24:41 UTC -
Local time at epicenter: 20 Oct 8:24 am (GMT -8)
Magnitude: 3.7
Profondeur: 6.9 km
Epicenter latitude / longitude: 54.9713°N / 159.3856°W
(Alaska, États-Unis)Volcan le plus près: Stepovak Bay 2 (113 km / 70 mi)
Nearby towns and cities:
82 km ESE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
106 km S de Perryville (pop: 113) --> Voir les séismes à proximité!
148 km SSO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
158 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
162 km SE de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
187 km E de King Cove (pop: 1,010) --> Voir les séismes à proximité!
214 km E de Cold Bay (pop: 123) --> Voir les séismes à proximité!
224 km SSO de Port Heiden (pop: 98) --> Voir les séismes à proximité!
258 km E de False Pass (pop: 40) --> Voir les séismes à proximité!
381 km SSO de Egegik (pop: 106) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Few Clouds
5.9°C (43 F), humidity: 65%, wind: 4 m/s (7 kts) from NNE
Primary data source: USGS (United States Geological Survey)Few Clouds
5.9°C (43 F), humidity: 65%, wind: 4 m/s (7 kts) from NNEEstimated released energy: 2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 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 3.7 | 6.9 km | 81 Km ESE of Sand Point, Alaska, USA | USGS |
| M 3.7 | 7 km | South Of Alaska, USA | EMSC |
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