Mag. 1.8 earthquake - - 7km WNW of The Geysers, CA, on 2018-12-11 23:42:11 -08:00
Minor magnitude 1.8 earthquake at 1 km depth
12 Dec 07:48 UTC: First to report: USGS after 6 minutes.
Local time at epicenter: 2018-12-11 23:42:11 -08:00
Depth: 1.0 km
Epicenter latitude / longitude: 38.812°N / 122.828°W (California, United States)
Nearest volcano: Clear Lake (18 km / 11 mi)
Nearby towns and cities:
2 km (1 mi) S of Black Oaks (Sonoma County)
9 km (6 mi) W of Cobb (Lake County) (pop: 1,780)
13 km (8 mi) NNE of Geyserville (Sonoma County) (pop: 862)
16 km (10 mi) E of Cloverdale (Sonoma County) (pop: 8,810)
18 km (11 mi) SSW of Clear Lake Riviera (Lake County) (pop: 3,090)
18 km (11 mi) S of Kelseyville (Lake County) (pop: 3,350)
119 km (74 mi) WNW of Sacramento (pop: 490,700)
121 km (75 mi) NNW of San Francisco (pop: 864,800)
Primary data source: USGS
Estimated released energy: 3.2 x 107 joules (8.78 kilowatt hours) [learn more]
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.
|M 1.8||1 km||- 7km WNW of The Geysers, CA||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 1.8, this quake was too small to be felt by humans, but it was recorded instrumentally.