Moderate mag. 5.1 earthquake - 63 mi southeast of Sand Point, Aleutians East, Alaska, USA, on Thursday, Oct 29, 2020 at 8:36 pm (GMT -8)

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 10 days earlier.
Moderate mag. 5.1 earthquake - 63 mi southeast of Sand Point, Aleutians East, Alaska, USA, on Thursday, Oct 29, 2020 at 8:36 pm (GMT -8) Moderate mag. 5.1 earthquake - 63 mi southeast of Sand Point, Aleutians East, Alaska, USA, on Thursday, Oct 29, 2020 at 8:36 pm (GMT -8)

Moderate magnitude 5.1 earthquake at 31 km depth

30 Oct 04:46 UTC: First to report: GFZ after 10 minutes.
30 Oct 04:55: Now using data updates from USGS
2 Nov 06:00: Now using data updates from USGS
3 Nov 18:02: Now using data updates from USGS

Earthquake details

Date & timeOct 30, 2020 04:36:29 UTC
Local time at epicenterThursday, Oct 29, 2020 at 8:36 pm (GMT -8)
StatusConfirmed
Magnitude5.1
Depth31.3 km
Epicenter latitude / longitude54.5552°N / 159.662°W (Gulf of Alaska, United States)
Antipode54.555°S / 20.338°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoStepovak Bay 2 (132 km / 82 mi)
Nearby towns and cities102 km (63 mi) SSE of Sand Point (pop: 1,060) | Show on map | Quakes nearby
154 km (96 mi) SSW of Perryville (pop: 113) | Show on map | Quakes nearby
179 km (111 mi) ESE of King Cove (pop: 1,010) | Show on map | Quakes nearby
188 km (117 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
208 km (129 mi) SSW of Chignik Lagoon (pop: 78) | Show on map | Quakes nearby
208 km (129 mi) ESE of Cold Bay (pop: 123) | Show on map | Quakes nearby
243 km (151 mi) E of False Pass (pop: 40) | Show on map | Quakes nearby
273 km (170 mi) SSW of Port Heiden (pop: 98) | Show on map | Quakes nearby
399 km (248 mi) E of Akutan (pop: 1,040) | Show on map | Quakes nearby
Estimated seismic energy released2.8 x 1012 joules (783 megawatt hours, equivalent to 674 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
5.131 km102 Km SSE of Sand Point, Alaska, USAUSGS
5.120 kmSouth Of Alaska, USAEMSC
5.224 kmSouth of Alaska, USAGeoAu
5.010 kmSouth of Alaska, USAGFZ

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 (974.9 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!
Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Adventure & Study Travel
Tours to Volcanoes and Volcanic Areas: walking tours, photo tours, study tours Get our newsletter!
Company info
Contact | Legal info | Terms & conditions
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 310 395 322 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Privacy - cookie settings