Mag. 3.4 earthquake - Gulf of Alaska, 80 mi east of Sand Point, Alaska, USA, on Sunday, 9 August 2020 at 12:39 (GMT) -

This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 3 weeks earlier.
Mag. 3.4 earthquake  - Gulf of Alaska, 80 mi east of Sand Point, Alaska, USA, on Sunday, 9 August 2020 at 12:39 (GMT)

Minor magnitude 3.4 earthquake at 19 km depth

9 Aug 19:12 UTC: First to report: USGS after 7 hours.
Date & time: 9 Aug 2020 12:39:46 UTC -
Magnitude: 3.4
Depth: 18.5 km
Epicenter latitude / longitude: 54.8836°N / 158.6366°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Stepovak Bay 2 (145 km / 90 mi)
Nearby towns and cities:
119 km (74 mi) SSE of Perryville (pop: 113) --> See nearby quakes!
129 km (80 mi) ESE of Sand Point (pop: 1,060) --> See nearby quakes!
153 km (95 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
158 km (98 mi) S of Chignik (pop: 87) --> See nearby quakes!
204 km (127 mi) SE of Nelson Lagoon (pop: 52) --> See nearby quakes!
229 km (142 mi) S of Port Heiden (pop: 98) --> See nearby quakes!
236 km (147 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
262 km (163 mi) E of Cold Bay (pop: 123) --> See nearby quakes!
6075 km (3775 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6075 km (3775 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
40 km (25 mi) E of Simeonof Island --> See nearby quakes!
60 km (37 mi) E of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 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.
MagnitudeDepthLocationSource
M 3.419 km118 km SSE of Perryville, Alaska (USA)USGS
M 3.418 kmSouth Of Alaska (USA)EMSC

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. 3.4 earthquake - Gulf of Alaska, 80 mi east of Sand Point, Alaska, USA, on Sunday, 9 August 2020 at 12:39 (GMT)
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.