Mag. 1.2 earthquake - Sonoma County, 6.5 mi west of Cobb, Lake County, California, USA, on 10 Oct 12:54 am (GMT -7) -
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Minor magnitude 1.2 earthquake at 2 km depth
10 Oct 07:56 UTC: First to report: USGS after 2 minutes.
Local time at epicenter: 10 Oct 12:54 am (GMT -7)
Magnitude: 1.2
Depth: 2.2 km
Epicenter latitude / longitude: 38.8205°N / 122.84333°W

Nearest volcano: Clear Lake (18 km / 11 mi)
Nearby towns and cities:
10 km (6 mi) W of Cobb (pop: 1,780) --> See nearby quakes!
15 km (9 mi) E of Cloverdale (Sonoma County) (pop: 8,810) --> See nearby quakes!
18 km (11 mi) S of Kelseyville (pop: 3,350) --> See nearby quakes!
23 km (15 mi) N of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
24 km (15 mi) SW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
25 km (15 mi) W of Hidden Valley Lake (pop: 5,580) --> See nearby quakes!
30 km (19 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
44 km (27 mi) NNW of Santa Rosa (pop: 175,000) --> See nearby quakes!
3924 km (2438 mi) WNW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
3924 km (2438 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds
12.8°C (55 F), humidity: 89%, wind: 1 m/s (2 kts) from NNW
Primary data source: USGS (United States Geological Survey)
Scattered Clouds

Estimated released energy: 4 x 106 joules (1.11 kilowatt hours) 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.
Magnitude | Depth | Location | Source |
M 1.2 | 2.2 km | 9km WNW of The Geysers, CA, USA | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 1.2, this quake was too small to be felt by humans, but it was recorded instrumentally.