Major magnitude. 7.2 earthquake - Offshore Northern California (USA) on Saturday, 8 November 1980 at 10:27 (GMT)

Major magnitude. 7.2 earthquake  - Offshore Northern California (USA) on Saturday, 8 November 1980 at 10:27 (GMT)

Major magnitude 7.2 earthquake at 19 km depth

Date & time: 8 Nov 1980 10:27:34 UTC###AGESTRINGCOPY###
Magnitude: 7.2
Profondeur: 19.0 km
Epicenter latitude / longitude: 41.117°N / 124.253°W (California, États-Unis)
Volcan le plus près: Mount Shasta (175 km / 109 mi)
Nearby towns and cities:
23 km NW de McKinleyville (Humboldt County) (pop: 15,200)
36 km NNW de Eureka (Humboldt County) (pop: 27,000)
58 km N de Fortuna (Humboldt County) (pop: 12,000)
71 km S de Crescent City (Del Norte County) (pop: 6,770)
72 km N de Scotia (Humboldt County) (pop: 850)
167 km WNW de Redding (pop: 91,600)
404 km NNW de San Francisco (pop: 864,800)
467 km NNW de San José (pop: 1,026,900)
Primary data source: USGS
Estimated released energy: 4 x 1015 joules (1106 gigawatt hours, equivalent to 9.5 x 105 tons of TNT or 59.5 atomic bombs!) More info
[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 7.219 kmoffshore 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

Aftershocks of the 7.2 quake Offshore Northern California (USA) 8 November 10:27 UTC

More info
Recorded aftershocks, latest first (136 quakes):
  • 06 Feb 1982 12:02 UTC
    | M 5.2 |
    5.2 km (3.2 mi) depth
    |
    76 km (47 mi) distance
    | USGS | Details
  • 05 May 1981 06:03 UTC
    | M 3.4 |
    25.8 km (16 mi) depth
    |
    92 km (57 mi) distance
    | USGS | Details
  • 05 May 1981 01:06 UTC
    | M 3.2 |
    8.5 km (5.3 mi) depth
    |
    122 km (76 mi) distance
    | USGS | Details
  • 22 Apr 1981 11:43 UTC
    | M 3.4 |
    4.9 km (3 mi) depth
    |
    115 km (72 mi) distance
    | USGS | Details
  • 20 Apr 1981 23:44 UTC
    | M 3.5 |
    27.3 km (17 mi) depth
    |
    92 km (57 mi) distance
    | USGS | Details
  • 20 Apr 1981 07:23 UTC
    | M 3.2 |
    25.2 km (15.7 mi) depth
    |
    93 km (58 mi) distance
    | USGS | Details
  • 18 Apr 1981 13:17 UTC
    | M 3.8 |
    18.2 km (11.3 mi) depth
    |
    94 km (59 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    12801 km (7954 mi) distance
    | | Details
  • 17 Apr 1981 01:31 UTC
    | M 4.2 |
    4.6 km (2.9 mi) depth
    |
    149 km (92 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    12801 km (7954 mi) distance
    | | Details
  • 16 Apr 1981 01:32 UTC
    | M 3.8 |
    3.3 km (2.1 mi) depth
    |
    103 km (64 mi) distance
    | USGS | Details
  • 13 Apr 1981 22:16 UTC
    | M 4.3 |
    23.4 km (14.5 mi) depth
    |
    91 km (57 mi) distance
    | USGS | Details
  • 03 Apr 1981 00:59 UTC
    | M 3.2 |
    4.7 km (2.9 mi) depth
    |
    58 km (36 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    12801 km (7954 mi) distance
    | | Details
  • 03 Apr 1981 00:19 UTC
    | M 3.2 |
    21.8 km (13.5 mi) depth
    |
    93 km (58 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    12801 km (7954 mi) distance
    | | Details
  • Show all

Earlier earthquakes in the same area

Major magnitude. 7.2 earthquake - Offshore Northern California (USA) on Saturday, 8 November 1980 at 10:27 (GMT)
Volcanoes & Earthquakes - new app for Android
 

Plus sur VolcanoDiscovery

 
Why is there advertising on this site?

Support us!

Maintaining the website and our free apps is a time- and cost-intensive effort.
If you find the information useful and would like to support our team to develop further features and get the upgraded ad-free version, consider making a donation (PayPal or Online cc payment).
Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
Thanks to your past donations, these features have been added recently:
  • Earthquake archive back to 1900
  • Additional data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
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.