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Major mag. 7.2 earthquake - Offshore Northern California (USA) on Saturday, 8 November 1980

Major mag. 7.2 earthquake  - Offshore Northern California (USA) on Saturday, 8 November 1980
Date & time: Saturday, 8 November 1980 10:27 UTC
Magnitude: 7.2
Depth: 19.0 km
Epicenter latitude / longitude: 41.117°N / 124.253°W (California, United States)
Nearest volcano: Mount Shasta (175 km / 109 mi)
Nearby towns and cities:
11 km (7 mi) SW of Big Lagoon (pop: 100)
11 km (7 mi) NW of Trinidad (pop: 400)
15 km (9 mi) NW of Westhaven-Moonstone (pop: 1,200)
166 km (103 mi) SW of Grants Pass (pop: 37,100)
167 km (104 mi) NW of Redding (pop: 91,600)
177 km (110 mi) SW of Medford (pop: 79,800)
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!) [learn more]
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.
TimeMag. / DepthLocationSource
Sat, 8 Nov 10:27 UTCM 7.2 / 19 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!

Aftershocks of the 7.2 quake: Offshore Northern California (USA), 8 Nov 1980 10:27

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 mag. 7.2 earthquake - Offshore Northern California (USA) on Saturday, 8 November 1980
 

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