M2.2 earthquake 4km W of Cobb, CA
A magnitude 2.2 earthquake struck 4km W of Cobb, CA on Tue, Mar 23, 2021, 10:14 AM PDT (17:14 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M4.0 21km SSW of Willits, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.2 (Md, duration), micro
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 2021-03-23 17:14:04 UTC
- Depth
- 1.7 km (1.1 mi), shallow
- Epicenter
- 38.824° N, 122.765° W
- Region
- California
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.1 km horizontally, 0.2 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 45°
- Stations used
- 45
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 79 in the 30 days before it.
After
- 2.24km SSW of Anderson Springs, CA · 2020 days ago · 2 km deep · 10 km away
- 1.84km SSW of Anderson Springs, CA · 2020 days ago · 1 km deep · 10 km away
- 2.810km ENE of Yountville, CA · 2020 days ago · 11 km deep · 63 km away · felt by 42
- 1.811km ENE of Yountville, CA · 2020 days ago · 7 km deep · 63 km away · felt by 1
- 1.75km NW of The Geysers, CA · 2020 days ago · 1 km deep · 4 km away
- 1.86km WNW of The Geysers, CA · 2020 days ago · 3 km deep · 5 km away
- 2.27km SW of Arbuckle, CA · 2019 days ago · 15 km deep · 58 km away · felt by 1
- 4.021km SSW of Willits, CA · 2019 days ago · 8 km deep · 77 km away · felt by 126
- 2.821km SSW of Willits, CA · 2019 days ago · 7 km deep · 78 km away · felt by 13
- 1.620km SSW of Willits, CA · 2019 days ago · 8 km deep · 78 km away
- 1.94km SW of Anderson Springs, CA · 2019 days ago · 2 km deep · 10 km away
- 2.410km SE of Willits, CA · 2018 days ago · 6 km deep · 73 km away · felt by 2
- 2.26km WNW of Cobb, CA · 2018 days ago · 2 km deep · 3 km away
- 1.76km WNW of Cobb, CA · 2018 days ago · 2 km deep · 3 km away
- 1.54km WNW of The Geysers, CA · 2017 days ago · 0 km deep · 4 km away
- 1.96km NW of The Geysers, CA · 2017 days ago · 3 km deep · 3 km away
- 2.813km SE of Talmage, CA · 2017 days ago · 2 km deep · 36 km away · felt by 4
- 2.813km SE of Talmage, CA · 2017 days ago · -1 km deep · 36 km away · felt by 17
- 2.04km SSW of Anderson Springs, CA · 2016 days ago · 1 km deep · 10 km away
- 1.913km SE of Talmage, CA · 2016 days ago · 2 km deep · 36 km away
- 1.77km E of Willits, CA · 2015 days ago · 7 km deep · 79 km away
- 2.04km NW of The Geysers, CA · 2014 days ago · 1 km deep · 3 km away · felt by 1
- 1.820km NNW of Boonville, CA · 2013 days ago · 5 km deep · 72 km away
- 3.15km W of Cobb, CA · 2013 days ago · 1 km deep · 1 km away · felt by 12
- 1.93km NNW of The Geysers, CA · 2013 days ago · 0 km deep · 2 km away
- 1.83km NNW of The Geysers, CA · 2013 days ago · 0 km deep · 2 km away
- 1.75km W of Cobb, CA · 2013 days ago · 2 km deep · 1 km away
- 1.51km WNW of The Geysers, CA · 2012 days ago · 1 km deep · 5 km away
- 1.78km NW of The Geysers, CA · 2012 days ago · 2 km deep · 4 km away
- 1.68km NW of The Geysers, CA · 2012 days ago · 2 km deep · 4 km away
- 1.98km WNW of Cobb, CA · 2012 days ago · 1 km deep · 5 km away · felt by 1
- 1.78km NW of The Geysers, CA · 2012 days ago · 2 km deep · 4 km away
- 1.610km WNW of Calistoga, CA · 2011 days ago · 8 km deep · 24 km away · felt by 1
- 1.510km ESE of Willits, CA · 2011 days ago · 7 km deep · 73 km away
- 1.713km W of Lakeport, CA · 2011 days ago · 0 km deep · 35 km away
- 2.33km NE of The Geysers, CA · 2011 days ago · 2 km deep · 4 km away · felt by 1
- 1.512km WNW of Upper Lake, CA · 2009 days ago · 9 km deep · 48 km away
- 2.52km SSW of Cobb, CA · 2007 days ago · 2 km deep · 3 km away · felt by 5
- 1.65km WNW of The Geysers, CA · 2006 days ago · 3 km deep · 5 km away
- 1.99km WNW of The Geysers, CA · 2006 days ago · 2 km deep · 7 km away
- 1.82km N of Lake Pillsbury, CA · 2006 days ago · 7 km deep · 69 km away
- 1.87km NW of The Geysers, CA · 2006 days ago · 2 km deep · 4 km away
- 1.57km NW of The Geysers, CA · 2006 days ago · 2 km deep · 5 km away
- 2.44km WNW of The Geysers, CA · 2005 days ago · 3 km deep · 5 km away · felt by 2
- 2.94km WNW of The Geysers, CA · 2005 days ago · 4 km deep · 5 km away · felt by 15
- 2.56km S of Calistoga, CA · 2005 days ago · 9 km deep · 37 km away · felt by 10
- 1.66km NNE of Windsor, CA · 2005 days ago · 5 km deep · 26 km away
- 1.56km NW of The Geysers, CA · 2005 days ago · 2 km deep · 3 km away
- 1.74km S of Redwood Valley, CA · 2004 days ago · 5 km deep · 59 km away
- 2.35km NW of The Geysers, CA · 2004 days ago · 3 km deep · 3 km away · felt by 2
- 1.62km SW of Cobb, CA · 2004 days ago · 2 km deep · 3 km away
- 1.512km N of Brooktrails, CA · 2004 days ago · 8 km deep · 97 km away
- 1.95km WNW of The Geysers, CA · 2003 days ago · 3 km deep · 5 km away
- 1.96km NW of The Geysers, CA · 2002 days ago · 3 km deep · 3 km away
- 3.36km S of Calistoga, CA · 2002 days ago · 9 km deep · 37 km away · felt by 262
- 2.07km W of Cobb, CA · 2001 days ago · 2 km deep · 4 km away · felt by 1
- 2.67km NW of The Geysers, CA · 2001 days ago · 2 km deep · 4 km away
- 1.97km NW of The Geysers, CA · 2001 days ago · 2 km deep · 4 km away
- 2.47km NW of The Geysers, CA · 2001 days ago · 2 km deep · 4 km away · felt by 5
- 1.88km NW of The Geysers, CA · 2001 days ago · 2 km deep · 4 km away
The first 60 of 197.
Before
- 2.24km W of Cobb, CA · 2020 days ago · 2 km deep · 0 km away
- 2.39km WNW of The Geysers, CA · 2020 days ago · 2 km deep · 7 km away
- 1.63km ENE of The Geysers, CA · 2021 days ago · 1 km deep · 6 km away
- 2.73km SSW of Anderson Springs, CA · 2021 days ago · 2 km deep · 10 km away · felt by 1
- 1.97km W of Cobb, CA · 2022 days ago · 3 km deep · 4 km away
- 1.522km E of Navarro Head, CA · 2022 days ago · 1 km deep · 77 km away
- 1.65km S of Yountville, CA · 2022 days ago · 5 km deep · 63 km away
- 2.013km WNW of Lake Pillsbury, CA · 2022 days ago · 1 km deep · 74 km away
- 1.95km NW of The Geysers, CA · 2022 days ago · 3 km deep · 3 km away
- 1.81km NNE of The Geysers, CA · 2022 days ago · 2 km deep · 5 km away
- 1.89km WNW of The Geysers, CA · 2024 days ago · 2 km deep · 7 km away
- 1.911km N of Healdsburg, CA · 2024 days ago · 6 km deep · 15 km away
- 2.713km W of Lake Pillsbury, CA · 2025 days ago · 1 km deep · 73 km away · felt by 6
- 2.27km NW of The Geysers, CA · 2025 days ago · 3 km deep · 3 km away
- 1.613km NW of The Geysers, CA · 2025 days ago · 3 km deep · 10 km away
- 2.710km WNW of American Canyon, CA · 2025 days ago · 9 km deep · 76 km away · felt by 20
- 1.910km ESE of Willits, CA · 2027 days ago · 6 km deep · 73 km away
- 1.62km E of Vallejo, CA · 2029 days ago · 7 km deep · 93 km away
- 1.76km SSW of Yountville, CA · 2029 days ago · 7 km deep · 62 km away · felt by 1
- 1.810km ESE of Willits, CA · 2030 days ago · 6 km deep · 73 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc73538921. Read Sat, Oct 3, 2026, 7:03 PM UTC.