Moderate mag. 4.6 earthquake - 67 mi southeast of Sand Point, Aleutians East County, Alaska, on Thursday, 22 Oct 2020 11:58 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 4 jours earlier.
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Séisme modéré magnitude 4.6 at 26 km depth
23 Oct 11:09 UTC: Premier à signaler: GFZ après 12 minutes.
23 Oct 11:16: Maintenant en utilisant une nouvelle source de données: USGS
29 Oct 12:03: Maintenant en utilisant une nouvelle source de données: USGS
23 Oct 11:16: Maintenant en utilisant une nouvelle source de données: USGS
29 Oct 12:03: Maintenant en utilisant une nouvelle source de données: USGS
Date & time: 23 Oct 2020 10:58:13 UTC -
Local time at epicenter: jeudi, 22 oct. 2020 23:58 (GMT -11)
Magnitude: 4.6
Profondeur: 26.2 km
Epicenter latitude / longitude: 54.5281°N / 159.5742°W
(Gulf of Alaska, États-Unis)Volcan le plus près: Stepovak Bay 2 (117 km / 73 mi)
Nearby towns and cities:
108 km SE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
156 km S de Perryville (pop: 113) --> Voir les séismes à proximité!
186 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
194 km SSE de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
199 km SSO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
209 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
214 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
249 km E de False Pass (pop: 40) --> Voir les séismes à proximité!
275 km SSO de Port Heiden (pop: 98) --> Voir les séismes à proximité!
405 km E de Akutan (pop: 1,040) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Few Clouds
8.8°C (48 F), humidity: 76%, wind: 7 m/s (13 kts) from SSW
Primary data source: USGS (United States Geological Survey)Few Clouds
8.8°C (48 F), humidity: 76%, wind: 7 m/s (13 kts) from SSWEstimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 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 4.6 | 26 km | 107 Km SSE of Sand Point, Alaska, USA | USGS |
| M 4.6 | 8 km | South Of Alaska, USA | EMSC |
| M 4.8 | 26 km | South of Alaska, USA | GFZ |
| M 5.0 | 24 km | South of Alaska, USA | GeoAu |
| M 4.6 | 26 km | 107 Km SSE of Sand Point, Alaska, USA | USGS |
User reports for this quake
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