Mag. 3.5 earthquake - Offshore Northern California (USA) on Sunday, 4 January 1981 at 09:29 (GMT)

Mag. 3.5 earthquake - Offshore Northern California (USA) on Sunday, 4 January 1981 at 09:29 (GMT)

Minor magnitude 3.5 earthquake at 15 km depth

Date & time: 4 Jan 1981 09:29:41 UTC
Magnitude: 3.5
Profondeur: 15.0 km
Epicenter latitude / longitude: 41.295°N / 125.306°W (Comté de Kern, États-Unis)
Volcan le plus près: Central Segment (160 km / 99 mi)
Nearby towns and cities:
99 km O de Big Lagoon (pop: 93) --> Voir les séismes à proximité!
105 km OSO de Crescent City (Del Norte County) (pop: 6,770) --> Voir les séismes à proximité!
108 km ONO de McKinleyville (Humboldt County) (pop: 15,200) --> Voir les séismes à proximité!
110 km ONO de Eureka (Humboldt County) (pop: 27,000) --> Voir les séismes à proximité!
113 km ONO de Arcata (Humboldt County) (pop: 17,800) --> Voir les séismes à proximité!
116 km ONO de Bayside (Humboldt County) (pop: 17,100) --> Voir les séismes à proximité!
124 km NO de Fortuna (Humboldt County) (pop: 12,000) --> Voir les séismes à proximité!
232 km OSO de Medford (Oregon) (pop: 79,800) --> Voir les séismes à proximité!
4063 km ONO de Washington DC (District of Columbia) (pop: 601,700) --> Voir les séismes à proximité!
4063 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: 1.1 x 1010 joules (3.12 megawatt hours, equivalent to 2.68 tons of TNT) More info
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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 3.515 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!
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Earlier earthquakes in the same area

Mag. 3.5 earthquake - Offshore Northern California (USA) on Sunday, 4 January 1981 at 09:29 (GMT)
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