Mag. 3.8 earthquake - Gulf of Alaska, 74 mi southeast of Sand Point, Alaska, USA, on 25 Oct 5:53 am (GMT -11) -

Mag. 3.8 earthquake  - Gulf of Alaska, 74 mi southeast of Sand Point, Alaska, USA, on 25 Oct 5:53 am (GMT -11)

Minor magnitude 3.8 earthquake at 20 km depth

25 Oct 17:11 UTC: First to report: USGS after 18 minutes.
25 Oct 17:12: Magnitude recalculated from 3.8 to 3.5. Hypocenter depth recalculated from 21.0 to 4.5 km (from 13 to 2.8 mi). Epicenter location corrected by 8.5 km (5.3 mi) towards WNW.
25 Oct 18:06: Magnitude recalculated from 3.5 to 3.8. Hypocenter depth recalculated from 4.5 to 20.2 km (from 2.8 to 12.6 mi). Epicenter location corrected by 9.9 km (6.2 mi) towards ESE.
Date & time: 25 Oct 2020 16:53:43 UTC -
Local time at epicenter: 25 Oct 5:53 am (GMT -11)
Magnitude: 3.8
Depth: 20.2 km
Epicenter latitude / longitude: 54.3702°N / 159.7239°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dana (162 km / 101 mi)
Nearby towns and cities:
118 km (74 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
175 km (109 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
184 km (114 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
204 km (127 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
213 km (132 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
218 km (136 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
228 km (142 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
394 km (245 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
6160 km (3828 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
6160 km (3828 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
48 km (30 mi) SSW of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Moderate Rain 8.1°C (47 F), humidity: 92%, wind: 7 m/s (15 kts) from NE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 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.
M 3.820 km118 Km SSE of Sand Point, Alaska, USAUSGS
M 3.820 kmSouth Of Alaska, 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!
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Mag. 3.8 earthquake - Gulf of Alaska, 74 mi southeast of Sand Point, Alaska, USA, on 25 Oct 5:53 am (GMT -11)
Volcanoes & Earthquakes - new app for Android
Why is there advertising on this site?

Support us - Help us upgrade our server!

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.
Our server is reaching its limits and we need financing to increase capacity in order to deal with huge activity peaks when quakes occur. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every penny counts and every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features and in upgrading our software, please make a donation (PayPal or Online cc 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! With best regards from the VolcanoDiscovery team.
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: 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.