Terremoto moderato mag. 4.7 - Gulf of Alaska, 106 km a sud-est da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, mercoledì, 21 ottobre 2020 -

Terremoto moderato mag. 4.7 - Gulf of Alaska, 106 km a sud-est da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, mercoledì, 21 ottobre 2020

Terremoto moderato magnitudine 4.7 at 26 km depth

21 Oct 12:50 UTC: Primo a segnalare: USGS dopo 17 minuti.
Data & ora: 21 Oct 2020 12:32:41 UTC -
Ora locale a epicentro: 21 Oct 1:32 am (GMT -11)
Magnitudine: 4.7
Profondità: 26.4 km
Epicentro latitudine / longitudine: 54.5073°N / 159.6943°W (Gulf of Alaska, Alaska, Stati Uniti)
Vulcano più vicino: Stepovak Bay 2 (158 km / 98 mi)
Nearby towns and cities:
106 km SSE da Sand Point (pop: 1,060) --> Vedi sismi vicini
160 km SSO da Perryville (pop: 113) --> Vedi sismi vicini
179 km ESE da King Cove (pop: 1,010) --> Vedi sismi vicini
192 km SSE da Nelson Lagoon (pop: 52) --> Vedi sismi vicini
203 km SSO da Chignik Lake (pop: 73) --> Vedi sismi vicini
208 km ESE da Cold Bay (pop: 123) --> Vedi sismi vicini
213 km SSO da Chignik Lagoon (pop: 78) --> Vedi sismi vicini
242 km E da False Pass (pop: 40) --> Vedi sismi vicini
279 km SSO da Port Heiden (pop: 98) --> Vedi sismi vicini
397 km E da Akutan (pop: 1,040) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds 7.7°C (46 F), humidity: 77%, wind: 14 m/s (26 kts) from E
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 4.726 km105 Km SSE of Sand Point, Alaska, USAUSGS
M 4.730 kmSouth Of Alaska, USAEMSC
M 4.730 kmSouth of Alaska, USAGFZ

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Palmer / Light shaking (MMI IV) / 15-20 s
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Earlier earthquakes in the same area

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