Weak mag. 2.5 earthquake - 5km WNW of Cobb, CA, USA, on Monday, 1 Mar 2021 9:10 am (GMT -8) -
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US| California | California
Weak magnitude 2.5 earthquake at 2 km depth
1 Mar 17:12 UTC: First to report: USGS after 2 minutes.
Date & time: 1 Mar 2021 17:10:45 UTC -
Local time at epicenter: Monday, 1 Mar 2021 9:10 am (GMT -8)
Magnitude: 2.5
Depth: 1.8 km
Epicenter latitude / longitude: 38.83533°N / 122.78167°W
(California, United States)Nearest volcano: Clear Lake (15 km / 9 mi)
Nearby towns and cities:
5 km (3 mi) WNW of Cobb (pop: 1,780) --> See nearby quakes!
17 km (10 mi) SSE of Kelseyville (pop: 3,350) --> See nearby quakes!
19 km (12 mi) SW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
20 km (12 mi) W of Hidden Valley Lake (pop: 5,580) --> See nearby quakes!
21 km (13 mi) E of Cloverdale (Sonoma County) (pop: 8,810) --> See nearby quakes!
32 km (20 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
44 km (28 mi) N of Santa Rosa (pop: 175,000) --> See nearby quakes!
56 km (35 mi) N of Rohnert Park (pop: 42,400) --> See nearby quakes!
68 km (42 mi) N of Petaluma (pop: 60,400) --> See nearby quakes!
116 km (72 mi) NW of Concord (pop: 128,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
8.3°C (47 F), humidity: 62%, wind: 0 m/s (1 kts) from W
Primary data source: USGS (United States Geological Survey)Clear Sky
8.3°C (47 F), humidity: 62%, wind: 0 m/s (1 kts) from WEstimated released energy: 3.5 x 108 joules (98.6 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 |
| 2.5 | 1.8 km | 5km WNW of Cobb, CA, USA | USGS |
| 2.5 | 2 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 2.5, this quake might have been felt very close to the epicenter and under calm conditions.There are no user reports for this quake yet. If you felt it be the first to report it!
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!
