Terremoto moderato mag. 4.7 - Gulf of Alaska, 116 km a sud-est da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, sabato, 31 ottobre 2020 -

Terremoto moderato mag. 4.7 - Gulf of Alaska, 116 km a sud-est da Sand Point, Borough delle Aleutine orientali County, Alaska, Stati Uniti, sabato, 31 ottobre 2020

Terremoto moderato magnitudine 4.7 at 40 km depth

31 Oct 05:46 UTC: Primo a segnalare: GFZ dopo 10 minuti.
31 Oct 05:50: Magnitudine ricalcolata da 5.1 a 5.8. Posizione dell'epicentro corretta di 7.9 km (4.9 mi) al S.
31 Oct 06:51: Magnitudine ricalcolata da 5.8 a 5.3. Posizione dell'epicentro corretta di 1.3 km (0.8 mi) al SSW.
3 Nov 18:02: Ora utilizzando nuova fonte di dati: USGS
Data & ora: 31 Oct 2020 05:36:09 UTC -
Ora locale a epicentro: venerdì, 30 ott 2020 21:36 (GMT -8)
Magnitudine: 4.7
Profondità: 40.4 km
Epicentro latitudine / longitudine: 54.5411°N / 159.3357°W (Gulf of Alaska, Stati Uniti)
Vulcano più vicino: Stepovak Bay 2 (155 km / 96 mi)
Nearby towns and cities:
116 km SE da Sand Point (pop: 1,060) --> Vedi sismi vicini
153 km S da Perryville (pop: 113) --> Vedi sismi vicini
194 km S da Chignik Lake (pop: 73) --> Vedi sismi vicini
200 km ESE da King Cove (pop: 1,010) --> Vedi sismi vicini
201 km SE da Nelson Lagoon (pop: 52) --> Vedi sismi vicini
203 km SSO da Chignik Lagoon (pop: 78) --> Vedi sismi vicini
228 km ESE da Cold Bay (pop: 123) --> Vedi sismi vicini
264 km E da False Pass (pop: 40) --> Vedi sismi vicini
271 km S da Port Heiden (pop: 98) --> Vedi sismi vicini
479 km SO da Old Harbor (pop: 221) --> 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
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
MagnitudineProfonditàUbicazioneFonte
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)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area since 1900


Map of earlier quakes

Volcanoes & Earthquakes - new app for Android
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery e da altre fonti come indicato.
Uso di materiale: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.