Terremoto moderato mag. 4.7 - Gulf of Alaska, 55 km a sud da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, giovedì, 23 luglio 2020 -

Questo terremoto era probabilmente un aftershock del M 7.8 terremoto: Gulf of Alaska, 50 km a est da Simeonof , Borough delle Aleutine orientali County, Alaska, Stati Uniti Wed, 22 Jul 2020 06:12che si è verificato 1 giorno 14 ore prima.
Terremoto moderato mag. 4.7 - Gulf of Alaska, 55 km a sud da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, giovedì, 23 luglio 2020

Terremoto moderato magnitudine 4.7 at 40 km depth

23 Jul 21:22 UTC: Primo a segnalare: USGS dopo 1 ora e 25 minuti.
Jul 24 17:14: Magnitudine ricalcolata da 4.6 a 4.8.
Profondità ricalcolata da 13.2 a 43.0 km.
Jul 30 14:14: Magnitudine ricalcolata da 4.8 a 4.7.
Profondità ricalcolata da 43.0 a 40.0 km.
Data & ora: 23 Jul 2020 19:56:50 UTC -
Magnitudine: 4.7
Profondità: 40.0 km
Epicentro latitudine / longitudine: 54.8493°N / 160.6606°W (Gulf of Alaska, Alaska, Stati Uniti)
Vulcano più vicino: Dana (90 km / 56 mi)
Nearby towns and cities:
55 km S da Sand Point (pop: 1,060) --> Vedi sismi vicini
108 km E da King Cove (pop: 1,010) --> Vedi sismi vicini
133 km SSE da Nelson Lagoon (pop: 52) --> Vedi sismi vicini
137 km ESE da Cold Bay (pop: 123) --> Vedi sismi vicini
152 km SO da Perryville (pop: 113) --> Vedi sismi vicini
176 km E da False Pass (pop: 40) --> Vedi sismi vicini
197 km SO da Chignik Lake (pop: 73) --> Vedi sismi vicini
210 km SO da Chignik Lagoon (pop: 78) --> Vedi sismi vicini
340 km ENE da Akutan (pop: 1,040) --> Vedi sismi vicini
396 km ENE da Isola di Unalaska (pop: 4,490) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 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.
M 5.045 kmAlaska Peninsula (USA)GeoAu
M 5.137 kmAlaska Peninsula (USA)GFZ
M 5.140 kmAlaska Peninsula (USA)EMSC
M 4.740 km55 km S of Sand Point, Alaska (USA)USGS

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