Moderate mag. 4.8 earthquake - Gulf of Alaska, 33 mi south of Wosnesenski Island, Aleutians East County, Alaska, USA, on Saturday, 6 Feb 2021 9:39 am (GMT -9) -

Moderate mag. 4.8 earthquake - Gulf of Alaska, 33 mi south of Wosnesenski Island, Aleutians East County, Alaska, USA, on Saturday, 6 Feb 2021 9:39 am (GMT -9)

Séisme modéré magnitude 4.8 at 50 km depth

6 Feb 18:54 UTC: Premier à signaler: EMSC après 15 minutes.
6 Feb 19:01: Emplacement de l'épicentre corrigé de 1.3 km (0.8 mi) au NNW.
6 Feb 19:56: Magnitude recalculée de 4.9 à 5.1. Profondeur recalculée de 95.0 à 60.0 km (de 59 à 37 mi). Emplacement de l'épicentre corrigé de 32 km (20 mi) au ENE.
6 Feb 20:04: Maintenant en utilisant une nouvelle source de données: USGS
Update Sat, 6 Feb 2021, 19:00
Moderate magnitude 4.9 quake hits 10 miles northeast of King Cove, Alaska, United States in the morning
4.9 quake 6 Feb 9:39 am (GMT -9)
4.9 quake 6 Feb 9:39 am (GMT -9)
Just 20 minutes ago, a 4.9-magnitude earthquake struck near King Cove, Aleutians East County, Alaska, USA. The tremor was recorded in the morning on Saturday 6 February 2021 at 9:39 am local time, at an intermediate depth of 59 miles below the surface.
The event was filed by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in King Cove (pop. 1000) located 10 miles from the epicenter, and Cold Bay (pop. 120) 26 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include False Pass (pop. 40) located 55 miles from the epicenter, and Sand Point (pop. 1,100) 64 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data:

Date & time: 6 Feb 2021 18:39:50 UTC -
Local time at epicenter: samedi, 6 févr. 2021 09:39 (GMT -9)
Magnitude: 4.8
Profondeur: 50.0 km
Epicenter latitude / longitude: 54.7143°N / 161.2781°W (Gulf of Alaska, Alaska, États-Unis)
Volcan le plus près: Dutton (13 km / 8 mi)
Nearby towns and cities:
77 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
85 km SO de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
106 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
138 km E de False Pass (pop: 40) --> Voir les séismes à proximité!
143 km S de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
190 km SO de Perryville (pop: 113) --> Voir les séismes à proximité!
233 km SO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
248 km SO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
298 km ENE de Akutan (pop: 1,040) --> Voir les séismes à proximité!
354 km ENE de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) Plus d'infos
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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.
MagnitudeProfondeurLieuSource
4.850 km77 Km ESE of King Cove, Alaska, USAUSGS
4.947 kmAlaska Peninsula, USAGFZ
4.846 kmALASKA PENINSULA, USAEMSC

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area since 1900


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