3 spots left on Iceland Geo Tour 16-30 July 2022

Moderate mag. 5.0 earthquake - 59 mi southeast of Sand Point, Aleutians East, Alaska, USA, on 19 Oct 9:18 pm (GMT -11)

This quake was likely an aftershock of the 7.6 quake 60 mi southeast of Sand Point, Aleutians East, Alaska, USA, Oct 19, 2020 11:54 am (GMT -9), which had occurred 11 hours earlier.
Moderate mag. 5.0 earthquake - 59 mi southeast of Sand Point, Aleutians East, Alaska, USA, on 19 Oct 9:18 pm (GMT -11) Moderate mag. 5.0 earthquake - 59 mi southeast of Sand Point, Aleutians East, Alaska, USA, on 19 Oct 9:18 pm (GMT -11)

Moderate magnitude 5.0 earthquake at 27 km depth

20 Oct 08:30 UTC: First to report: GFZ after 11 minutes.
20 Oct 09:02: Magnitude recalculated from 4.8 to 5.0. Hypocenter depth recalculated from 10.0 to 27.0 km (from 6.2 to 16.8 mi). Epicenter location corrected by 15.1 km (9.4 mi) towards NE.

Earthquake details

Date & timeOct 20, 2020 08:18:42 UTC
Local time at epicenter19 Oct 9:18 pm (GMT -11)
StatusConfirmed
Magnitude5
Depth27.0 km
Epicenter latitude / longitude54.58°N / 159.79°W (Gulf of Alaska, United States)
Antipode54.58°S / 20.21°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoDana (149 km / 93 mi)
Nearby towns and cities96 km (59 mi) SSE of Sand Point (pop: 1,060) | Show on map | Quakes nearby
154 km (95 mi) SSW of Perryville (pop: 113) | Show on map | Quakes nearby
171 km (106 mi) ESE of King Cove (pop: 1,010) | Show on map | Quakes nearby
182 km (113 mi) SSE of Nelson Lagoon (pop: 52) | Show on map | Quakes nearby
197 km (123 mi) SSW of Chignik Lake (pop: 73) | Show on map | Quakes nearby
199 km (124 mi) ESE of Cold Bay (pop: 123) | Show on map | Quakes nearby
208 km (129 mi) SSW of Chignik Lagoon (pop: 78) | Show on map | Quakes nearby
235 km (146 mi) E of False Pass (pop: 40) | Show on map | Quakes nearby
273 km (169 mi) SSW of Port Heiden (pop: 98) | Show on map | Quakes nearby
391 km (243 mi) E of Akutan (pop: 1,040) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 7.7°C (46 F), humidity: 64%, wind: 6 m/s (12 kts) from NNW
Estimated seismic energy released2 x 1012 joules (554 megawatt hours, equivalent to 477 tons of TNT) | about seismic energy
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!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic 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.
Mag.DepthLocationSource
5.027 kmSouth of Alaska, USAGFZ
4.828 km103 Km SE of Sand Point, Alaska, USAUSGS
4.832 kmSouth Of Alaska, USAEMSC

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Translate
Knik-Fairview, Matanuska-Susitna, Alaska (977.2 km NNE of epicenter) [Map] / not felt (reported through our app)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
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:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
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.