Moderate mag. 4.1 earthquake - Gulf of Alaska, 65 mi southeast of King Cove, Alaska, USA, on 4 Oct 12:19 pm (GMT -11) -
This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 11 semaines earlier.
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Séisme modéré magnitude 4.1 at 10 km depth
4 Oct 23:39 UTC: Premier à signaler: EMSC après 21 minutes.
4 Oct 23:40: Maintenant en utilisant une nouvelle source de données: USGS
5 Oct 00:42: Magnitude recalculée de 4.5 à 4.1. Profondeur recalculée de 24.4 à 10.0 km (de 15.2 à 6.2 mi). Emplacement de l'épicentre corrigé de 8.4 km (5.2 mi) au NNW.
4 Oct 23:40: Maintenant en utilisant une nouvelle source de données: USGS
5 Oct 00:42: Magnitude recalculée de 4.5 à 4.1. Profondeur recalculée de 24.4 à 10.0 km (de 15.2 à 6.2 mi). Emplacement de l'épicentre corrigé de 8.4 km (5.2 mi) au NNW.
Date & time: 4 Oct 2020 23:19:02 UTC -
Local time at epicenter: 4 Oct 12:19 pm (GMT -11)
Magnitude: 4.1
Profondeur: 10.0 km
Epicenter latitude / longitude: 54.3349°N / 161.2869°W
(Gulf of Alaska, Alaska, États-Unis)Volcan le plus près: Dutton (120 km / 75 mi)
Nearby towns and cities:
104 km SE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
122 km SSO de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
132 km SE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
149 km ESE de False Pass (pop: 40) --> Voir les séismes à proximité!
185 km S de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
222 km SO de Perryville (pop: 113) --> Voir les séismes à proximité!
267 km SO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
280 km SO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
293 km E de Akutan (pop: 1,040) --> Voir les séismes à proximité!
346 km E de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Few Clouds
9.4°C (49 F), humidity: 80%, wind: 4 m/s (9 kts) from SW
Primary data source: USGS (United States Geological Survey)Few Clouds
9.4°C (49 F), humidity: 80%, wind: 4 m/s (9 kts) from SWEstimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 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 4.1 | 10 km | 104 Km SE of King Cove, Alaska, USA | USGS |
| M 4.7 | 10 km | Alaska Peninsula, USA | EMSC |
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