Mag. 2.3 earthquake - Offshore Northern California (USA) on Tuesday, 11 November 1980 at 06:38 (GMT)

Mag. 2.3 earthquake - Offshore Northern California (USA) on Tuesday, 11 November 1980 at 06:38 (GMT)

Minor magnitude 2.3 earthquake at 20 km depth

Date & time: 11 Nov 1980 06:38:18 UTC
Magnitude: 2.3
Depth: 20.4 km
Epicenter latitude / longitude: 40.54917°N / 125.274°W (California, United States)
Nearest volcano: Escanaba Segment (194 km / 121 mi)
Nearby towns and cities:
85 km (53 mi) W of Ferndale (pop: 1,370) --> See nearby quakes!
95 km (59 mi) W of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
98 km (61 mi) WSW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
99 km (61 mi) W of Rio Dell (pop: 3,390) --> See nearby quakes!
106 km (66 mi) WSW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
107 km (67 mi) WSW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
108 km (67 mi) WSW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
235 km (146 mi) NW of Ukiah (pop: 15,900) --> See nearby quakes!
4079 km (2534 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
4079 km (2534 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 108 joules (49.4 kilowatt hours) 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.
MagnitudeDepthLocationSource
M 2.320 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.
At magnitude 2.3, this quake was probably too small to be felt by humans, but it could be recorded instrumentally.
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. 2.3 earthquake - Offshore Northern California (USA) on Tuesday, 11 November 1980 at 06:38 (GMT)
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