Light mag. 3.4 earthquake - 129 Km SSE of Sand Point, Alaska, USA, on 20 Oct 7:21 am (GMT -11) -
This quake was likely an aftershock of the 7.6 quake 97 Km SE of Sand Point, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 21 heures earlier.
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Séisme faible magnitude 3.4 at 2 km depth
20 Oct 19:04 UTC: Premier à signaler: USGS après 42 minutes.
Date & time: 20 Oct 2020 18:21:58 UTC -
Local time at epicenter: 20 Oct 7:21 am (GMT -11)
Magnitude: 3.4
Profondeur: 1.5 km
Epicenter latitude / longitude: 54.2766°N / 159.6695°W

Volcan le plus près: Dana (181 km / 112 mi)
Nearby towns and cities:
129 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!
191 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
215 km SSE de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
221 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!
237 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
250 km ESE de False Pass (pop: 40) --> Voir les séismes à proximité!
304 km SSO de Port Heiden (pop: 98) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Overcast Clouds
7°C (45 F), humidity: 63%, wind: 4 m/s (8 kts) from NE
Primary data source: USGS (United States Geological Survey)Overcast Clouds

Estimated released energy: 7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 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 3.4 | 1.5 km | 129 Km SSE of Sand Point, Alaska, USA | USGS |
M 3.4 | 2 km | South Of Alaska, USA | EMSC |
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