Mag. 1.6 earthquake - Sonoma County, 4.7 mi west of Cobb, California, USA, on 10 Oct 3:43 am (GMT -7) -
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Minor magnitude 1.6 earthquake at 3 km depth
10 Oct 10:45 UTC: First to report: USGS after 2 minutes.
Local time at epicenter: 10 Oct 3:43 am (GMT -7)
Magnitude: 1.6
Depth: 2.9 km
Epicenter latitude / longitude: 38.821°N / 122.80983°W

Nearest volcano: Clear Lake (17 km / 11 mi)
Nearby towns and cities:
8 km (5 mi) W of Cobb (pop: 1,780) --> See nearby quakes!
18 km (11 mi) S of Kelseyville (pop: 3,350) --> See nearby quakes!
18 km (11 mi) E of Cloverdale (Sonoma County) (pop: 8,810) --> See nearby quakes!
22 km (14 mi) W of Hidden Valley Lake (pop: 5,580) --> See nearby quakes!
22 km (14 mi) SW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
24 km (15 mi) NNE of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
30 km (19 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
43 km (27 mi) NNW of Santa Rosa (pop: 175,000) --> See nearby quakes!
3922 km (2437 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
3922 km (2437 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds
12°C (54 F), humidity: 85%, wind: 1 m/s (2 kts) from E
Primary data source: USGS (United States Geological Survey)
Broken Clouds

Estimated released energy: 1.6 x 107 joules (4.4 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 1.6 | 2.9 km | 7km NW 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 1.6, this quake was too small to be felt by humans, but it was recorded instrumentally.