Terremoto leve mag. 3.9 - Gulf of Alaska, 96 miles E of Sand Point, Aleutians East County, Alaska, USA, Wednesday, 31 Mar. 2021 -

Terremoto leve mag. 3.9 - Gulf of Alaska, 96 miles E of Sand Point, Aleutians East County, Alaska, USA, Wednesday, 31 Mar. 2021

Terremoto leve magnitud 3.9 at 12 km depth

31 Mar 01:21 UTC: Primero en informar: USGS después de 5 minutos.
31 Mar 01:22: Magnitud recalculada de 3.9 a 3.8. Profundidad recalculada de 14.6 a 32.9 km (de 9.1 a 20 mi). Ubicación del epicentro corregida 8.3 km (5.1 mi) al NO.
... [show all] ...
31 Mar 01:27: Profundidad recalculada de 12.1 a 11.9 km (de 7.5 a 7.4 mi).
Update Wed, 31 Mar 2021, 01:27
Small tremor of magnitude 3.9 just reported 52 miles southeast of Perryville, Alaska, United States
3.9 quake 30 Mar 5:16 pm (GMT -8)
3.9 quake 30 Mar 5:16 pm (GMT -8)
Just 10 minutes ago, a 3.9-magnitude earthquake struck near Perryville, Lake and Peninsula, Alaska, USA. The tremor was recorded in the afternoon on Tuesday 30 March 2021 at 5:16 pm local time, at a shallow depth of 7.5 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.9 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Perryville (pop. 110) located 52 miles from the epicenter.
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Earthquake data:

Fecha & hora: 31 Mar 2021 01:16:54 UTC -
Hora local al epicentro: Tuesday, 30 Mar 2021 17:16 (GMT -8)
Magnitud: 3.9
Profundidad: 11.9 km
Epicentro latitud / longitud: 55.4534°N / 158.0688°W (Golfo de Alaska, Alaska, Estados Unidos)
Volcán mas cercano: Veniaminof (114 km / 71 mi)
Nearby towns and cities:
85 km al SE de Perryville (pop: 113) --> ¡Vea sismos cercanos!
99 km al SSE de Chignik Lake (pop: 73) --> ¡Vea sismos cercanos!
99 km al SSE de Chignik Lagoon (pop: 78) --> ¡Vea sismos cercanos!
154 km al E de Sandpoint (pop: 1,060) --> ¡Vea sismos cercanos!
169 km al SSE de Port Heiden (pop: 98) --> ¡Vea sismos cercanos!
206 km al ESE de Nelson Lagoon (pop: 52) --> ¡Vea sismos cercanos!
273 km al E de King Cove (pop: 1,010) --> ¡Vea sismos cercanos!
296 km al E de Cold Bay (pop: 123) --> ¡Vea sismos cercanos!
422 km al SO de Kodiak Station (pop: 1,300) --> ¡Vea sismos cercanos!
433 km al SO de Saint Paul (Kodiak Island) (pop: 6,250) --> ¡Vea sismos cercanos!
Weather at epicenter at time of quake:
Few Clouds 2.7°C (37 F), humidity: 61%, wind: 11 m/s (21 kts) from WNW
Fuente primaria de datos: USGS (United States Geological Survey)
Energía liberada estimada: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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.
RevistaProfundidadUbicaciónFuente
3.912 km84 Km SE of Perryville, Alaska, USAUSGS
4.239 kmALASKA PENINSULA, USAEMSC

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Chignik Bay, AK (95.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) : Heard and felt, vibrations and slight side to side movement. Did not awake sleeping dogs. Person that has never felt an earthquake before asked if that was an earthquake, but did not need convincing that it was. Was also felt and recognized at the school. | 2 users found this interesting. (reported through our app)  
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