Strong mag. 5.1 earthquake - 1.6 mi northeast of Santa Rosa, Sonoma County, California, USA, on Thursday, October 2, 1969 at 06:19 (GMT)
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Strong magnitude 5.1 earthquake at 10 km depth
Depth: 10.0 km
Epicenter latitude / longitude: 38.455°N / 122.692°W (Sonoma, California, United States)
Antipode: 38.455°S / 57.308°E
Nearest volcano: Clear Lake (58 km / 36 mi)
Nearby towns and cities:
3 km (2 mi) NE of Santa Rosa (pop: 175,000) --> See nearby quakes!
13 km (8 mi) N of Rohnert Park (pop: 42,400) --> See nearby quakes!
15 km (9 mi) SE of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
25 km (16 mi) NNW of Petaluma (pop: 60,400) --> See nearby quakes!
40 km (25 mi) WNW of Napa (pop: 80,400) --> See nearby quakes!
40 km (25 mi) NNW of Novato (pop: 55,500) --> See nearby quakes!
54 km (34 mi) NW of Vallejo (pop: 121,300) --> See nearby quakes!
79 km (49 mi) NNW of San Francisco (pop: 864,800) --> See nearby quakes!
105 km (65 mi) W of Sacramento (pop: 490,700) --> See nearby quakes!
142 km (89 mi) NNW of San Jose (pop: 1,026,900) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1012 joules (783 megawatt hours, equivalent to 674 tons of TNT) | about seismic energy
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.
|5.1||10 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 (0 quake)
So far, no aftershocks have been registered.