Major magnitude 6.9 earthquake - North Pacific Ocean, 58 mi southwest of Eureka, Humboldt County, California, USA, on Monday, 22 January 1923 at 09:04 (GMT)
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Major magnitude 6.9 earthquake at 15 km depth
Date & time: 22 Jan 1923 09:04:20 UTC
Depth: 15.0 km
Epicenter latitude / longitude: 40.377°N / 125.118°W (North Pacific Ocean, California, United States)
Nearest volcano: Escanaba Segment (212 km / 132 mi)
Nearby towns and cities:
76 km (47 mi) WSW of Ferndale (pop: 1,370) --> See nearby quakes!
85 km (53 mi) WSW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
87 km (54 mi) W of Rio Dell (pop: 3,390) --> See nearby quakes!
93 km (58 mi) WSW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
103 km (64 mi) WSW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
103 km (64 mi) WSW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
107 km (66 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
232 km (144 mi) W of Redding (pop: 91,600) --> See nearby quakes!
372 km (231 mi) NW of San Francisco (pop: 864,800) --> See nearby quakes!
377 km (234 mi) NW of Oakland (pop: 419,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 atomic bombs!) More info
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.
|6.9||15 km||offshore Northern California (USA)||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!
More infoRecorded aftershocks, latest first (2 quakes):
- 29 Apr 1923 02:31 UTC| M 5.6 |0 km (0 mi) depth|70 km (43 mi) distance| USGS | Details
- 09 Feb 1923 11:14 UTC| M 5.0 |0 km (0 mi) depth|95 km (59 mi) distance| USGS | Details