Mag. 2.1 earthquake - 14 miles SSW of Clearlake on Saturday, 31 Oct 2020 11:05 am (GMT -7) -
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Minor magnitude 2.1 earthquake at 1 km depth
31 Oct 18:07 UTC: First to report: EMSC after 2 minutes.
31 Oct 18:07: Now using data updates from USGS
31 Oct 18:07: Now using data updates from USGS
Local time at epicenter: Saturday, 31 Oct 2020 11:05 am (GMT -7)
Magnitude: 2.1
Depth: 1.0 km
Epicenter latitude / longitude: 38.79417°N / 122.766°W

Nearest volcano: Clear Lake (20 km / 12 mi)
Nearby towns and cities:
5 km (3 mi) SW of Cobb (pop: 1,780) --> See nearby quakes!
18 km (11 mi) W of Hidden Valley Lake (pop: 5,580) --> See nearby quakes!
21 km (13 mi) SSE of Kelseyville (pop: 3,350) --> See nearby quakes!
22 km (14 mi) E of Cloverdale (Sonoma County) (pop: 8,810) --> See nearby quakes!
22 km (14 mi) SSW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
22 km (14 mi) NNE of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
28 km (17 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
40 km (25 mi) N of Santa Rosa (pop: 175,000) --> See nearby quakes!
3919 km (2435 mi) WNW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
3919 km (2435 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
19.1°C (66 F), humidity: 71%, wind: 1 m/s (2 kts) from SE
Primary data source: USGS (United States Geological Survey)
Clear Sky

Estimated released energy: 8.9 x 107 joules (24.8 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 2.1 | 1 km | 2km NNW of The Geysers, CA, USA | USGS |
M 2.1 | 1 km | Northern California, USA | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 2.1, this quake was probably too small to be felt by humans, but it could be recorded instrumentally.
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There are no user reports for this quake yet. If you felt it Earlier earthquakes in the same area since 1900
Mag. 2.1 earthquake - 14 miles SSW of Clearlake on Saturday, 31 Oct 2020 11:05 am (GMT -7)- Date / time UTC| Mag |Depth|Age|Distance| Details
- 18 Apr 1906 13:12| 7.9 |11.7km / 7.3mi|115 years ago|118km / 73mi| The 1906 San Francisco Earthquake (USA)
- 25 Apr 1992 18:06| 7.2 |9.9km / 6.2mi|29 years ago|212km / 132mi| 20km SSW of Rio Dell, California (USA)
- 18 Oct 1989 00:04| 6.9 |17.2km / 10.7mi|31 years ago|210km / 131mi| Loma Prieta, California Earthquake (USA)
- 26 Apr 1992 11:18| 6.6 |22km / 13mi|29 years ago|234km / 145mi| Offshore Northern California (USA)
- 01 Jul 1911 22:00| 6.6 |unknown|110 years ago|193km / 120mi| San Francisco Bay Area, California (USA)
- 26 Apr 1992 07:41| 6.5 |18.8km / 11.7mi|29 years ago|239km / 148mi| Offshore Northern California (USA)
- 06 Jun 1932 08:44| 6.4 |15km / 9.3mi|89 years ago|248km / 154mi| Northern California (USA)
- 29 Oct 1909 06:45| 6.4 |unknown|111 years ago|226km / 140mi| Northern California (USA)
- 22 Oct 1926 13:35| 6.3 |10km / 6.2mi|94 years ago|236km / 147mi| Offshore Central California (USA)
- 24 Apr 1984 21:15| 6.2 |8.2km / 5.1mi|37 years ago|191km / 118mi| Northern California (USA)
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