Minor mag. 1.8 earthquake - 6km WNW of The Geysers, CA, USA, on Thursday, 4 Feb 2021 5:11 pm (GMT -8) -
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US| California | California

Minor magnitude 1.8 earthquake at 3 km depth
5 Feb 01:14 UTC: First to report: USGS after 3 minutes.
Date & time: 5 Feb 2021 01:11:23 UTC -
Local time at epicenter: Thursday, 4 Feb 2021 5:11 pm (GMT -8)
Magnitude: 1.8
Depth: 3.1 km
Epicenter latitude / longitude: 38.808°N / 122.82°W

Nearest volcano: Clear Lake (19 km / 12 mi)
Nearby towns and cities:
9 km (5 mi) W of Cobb (pop: 1,780) --> See nearby quakes!
17 km (11 mi) E of Cloverdale (Sonoma County) (pop: 8,810) --> See nearby quakes!
19 km (12 mi) S of Kelseyville (pop: 3,350) --> See nearby quakes!
22 km (14 mi) N of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
22 km (14 mi) N of Russian River (pop: 11,700) --> See nearby quakes!
23 km (14 mi) W of Hidden Valley Lake (pop: 5,580) --> See nearby quakes!
24 km (15 mi) SW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
29 km (18 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
42 km (26 mi) NNW of Santa Rosa (pop: 175,000) --> See nearby quakes!
115 km (72 mi) NW of Concord (pop: 128,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
14.2°C (58 F), humidity: 44%, wind: 2 m/s (4 kts) from S
Primary data source: USGS (United States Geological Survey)Clear Sky

Estimated released energy: 3.2 x 107 joules (8.78 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 |
1.8 | 3.1 km | 6km 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 1.8, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.