Major magnitude 6.4 earthquake - 4.9 mi west of Rio Dell, Humboldt County, California, USA, on Friday, October 29, 1909 at 06:45 (GMT)
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Major magnitude 6.4 earthquake at 0 km depth
Depth: 0.0 km
Epicenter latitude / longitude: 40.5°N / 124.2°W↗ (Humboldt, California, United States)
Antipode: 40.5°S / 55.8°E↗
Nearest volcano: Black Butte (186 km / 116 mi)
Nearby towns and cities:
8 km (5 mi) W of Rio Dell (pop: 3,390) --> See nearby quakes!
12 km (7 mi) SSW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
34 km (21 mi) S of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
40 km (25 mi) SSW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
42 km (26 mi) SSW of Uniontown (Humboldt County) (pop: 17,800) --> See nearby quakes!
50 km (31 mi) S of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
53 km (33 mi) NW of Redway (pop: 1,230) --> See nearby quakes!
68 km (43 mi) SW of Willow Creek (pop: 1,710) --> See nearby quakes!
153 km (95 mi) W of Redding (pop: 91,600) --> See nearby quakes!
315 km (196 mi) NW of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 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.
|6.4||0 km||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.
Recorded aftershocks, latest first (1 quake)
- 19 Mar 1910 00:11 UTC| M 6.0 |0 km (0 mi) depth|88 km (55 mi) distance| USGS | Very strong mag. 6.0 earthquake - North Pacific Ocean, 71 mi southwest of Eureka, Humboldt County, California, USA, on Saturday, March 19, 1910 at 00:11 (GMT)