Terremoto moderato mag. 4.6 - Gulf of Alaska, 110 km a sud-est da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, martedì, 20 ottobre 2020 -

Terremoto moderato mag. 4.6 - Gulf of Alaska, 110 km a sud-est da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, martedì, 20 ottobre 2020

Terremoto moderato magnitudine 4.6 at 23 km depth

20 Oct 02:58 UTC: Primo a segnalare: USGS dopo 11 minuti.
20 Oct 03:01: Magnitudine ricalcolata da 4.4 a 4.6. Profondità ricalcolata da 16.8 a 23.5 km (da 10.4 a 14.6 mi). Posizione dell'epicentro corretta di 5.7 km (3.5 mi) al N.
21 Oct 01:32: Profondità ricalcolata da 23.5 a 22.6 km (da 14.6 a 14 mi). Posizione dell'epicentro corretta di 1.1 km (0.7 mi) al S.
Data & ora: 20 Oct 2020 02:47:45 UTC -
Ora locale a epicentro: lunedì, 19 ott 2020 15:47 (GMT -11)
Magnitudine: 4.6
Profondità: 22.6 km
Epicentro latitudine / longitudine: 54.4387°N / 159.7638°W (Gulf of Alaska, Alaska, Stati Uniti)
Vulcano più vicino: Dana (162 km / 101 mi)
Nearby towns and cities:
110 km SSE da Sand Point (pop: 1,060) --> Vedi sismi vicini
168 km SSO da Perryville (pop: 113) --> Vedi sismi vicini
178 km ESE da King Cove (pop: 1,010) --> Vedi sismi vicini
196 km SSE da Nelson Lagoon (pop: 52) --> Vedi sismi vicini
207 km ESE da Cold Bay (pop: 123) --> Vedi sismi vicini
212 km SSO da Chignik Lake (pop: 73) --> Vedi sismi vicini
222 km SSO da Chignik Lagoon (pop: 78) --> Vedi sismi vicini
239 km E da False Pass (pop: 40) --> Vedi sismi vicini
288 km SSO da Port Heiden (pop: 98) --> Vedi sismi vicini
392 km E da Akutan (pop: 1,040) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Clear Sky 8.3°C (47 F), humidity: 70%, wind: 6 m/s (11 kts) from NNW
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 5 x 1011 joules (139 megawatt hours, equivalent to 120 tons of TNT) More info
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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.
MagnitudineProfonditàUbicazioneFonte
M 4.623 km110 Km SSE of Sand Point, Alaska, USAUSGS
M 4.910 kmSouth of Alaska, USAGFZ
M 4.630 kmSouth Of Alaska, USAEMSC

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