Moderate mag. 4.7 earthquake - 72 mi southeast of Sand Point, Aleutians East County, Alaska, on Friday, 30 Oct 2020 9:36 pm (GMT -8) -

Moderate mag. 4.7 earthquake - 72 mi southeast of Sand Point, Aleutians East County, Alaska, on Friday, 30 Oct 2020 9:36 pm (GMT -8)

Séisme modéré magnitude 4.7 at 40 km depth

31 Oct 05:46 UTC: Premier à signaler: GFZ après 10 minutes.
31 Oct 05:50: Magnitude recalculée de 5.1 à 5.8. Emplacement de l'épicentre corrigé de 7.9 km (4.9 mi) au S.
31 Oct 06:51: Magnitude recalculée de 5.8 à 5.3. Emplacement de l'épicentre corrigé de 1.3 km (0.8 mi) au SSW.
3 Nov 18:02: Maintenant en utilisant une nouvelle source de données: USGS
Date & time: 31 Oct 2020 05:36:09 UTC -
Local time at epicenter: vendredi, 30 oct. 2020 21:36 (GMT -8)
Magnitude: 4.7
Profondeur: 40.4 km
Epicenter latitude / longitude: 54.5411°N / 159.3357°W (Gulf of Alaska, États-Unis)
Volcan le plus près: Stepovak Bay 2 (155 km / 96 mi)
Nearby towns and cities:
116 km SE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
153 km S de Perryville (pop: 113) --> Voir les séismes à proximité!
194 km S de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
200 km ESE de King Cove (pop: 1,010) --> Voir les séismes à proximité!
201 km SE de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
203 km SSO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
228 km ESE de Cold Bay (pop: 123) --> Voir les séismes à proximité!
264 km E de False Pass (pop: 40) --> Voir les séismes à proximité!
271 km S de Port Heiden (pop: 98) --> Voir les séismes à proximité!
479 km SO de Old Harbor (pop: 221) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 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.
MagnitudeProfondeurLocationSource
M 4.740 km115 Km SE of Sand Point, Alaska, USAUSGS
M 4.710 kmSouth Of Alaska, USAEMSC
M 5.235 kmSouth of Alaska, USAGeoAu
M 4.740 km115 Km SE of Sand Point, Alaska, USAUSGS
M 5.310 kmSouth of Alaska, USAGFZ

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
962.4 km NNE of epicenter [Map] / not felt (reported through our app)
962.4 km NNE of epicenter [Map] / not felt (reported through our app)
153.2 km N of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
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