Strong mag. 4.8 earthquake - Off the Coast of Northern California (USA) on Tuesday, 23 December 1980 at 23:10 (GMT)

Strong mag. 4.8 earthquake - Off the Coast of Northern California (USA) on Tuesday, 23 December 1980 at 23:10 (GMT)

Tremblement de terre fort magnitude 4.8 at 5 km depth

Date & time: 23 Dec 1980 23:10:22 UTC
Magnitude: 4.8
Profondeur: 5.0 km
Epicenter latitude / longitude: 41.02233°N / 125.43917°W (Comté de Kern, États-Unis)
Volcan le plus près: Central Segment (163 km / 101 mi)
Nearby towns and cities:
108 km ONO de Samoa (pop: 258) --> Voir les séismes à proximité!
110 km ONO de Eureka (Humboldt County) (pop: 27,000) --> Voir les séismes à proximité!
113 km O de McKinleyville (Humboldt County) (pop: 15,200) --> Voir les séismes à proximité!
115 km O de Arcata (Humboldt County) (pop: 17,800) --> Voir les séismes à proximité!
117 km O de Bayside (Humboldt County) (pop: 17,100) --> Voir les séismes à proximité!
236 km SO de Grants Pass (Josephine County, Oregon) (pop: 37,100) --> Voir les séismes à proximité!
258 km SO de Medford (Oregon) (pop: 79,800) --> Voir les séismes à proximité!
261 km O de Redding (pop: 91,600) --> Voir les séismes à proximité!
4080 km ONO de Washington DC (District of Columbia) (pop: 601,700) --> Voir les séismes à proximité!
4080 km ONO de Washington DC (District of Columbia) (pop: 601,700) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 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.
MagnitudeProfondeurLocationSource
M 4.85 kmoff the coast of Northern California (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

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
to top

Earlier earthquakes in the same area

Strong mag. 4.8 earthquake - Off the Coast of Northern California (USA) on Tuesday, 23 December 1980 at 23:10 (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.
Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.