M1.9 earthquake 7km W of Cobb, CA
A magnitude 1.9 earthquake struck 7km W of Cobb, CA on Thu, Oct 7, 2021, 9:13 PM PDT (04:13 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M3.1 1km NNW of The Geysers, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (Md, duration), micro
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 2021-10-08 04:13:26 UTC
- Depth
- 2.2 km (1.3 mi), shallow
- Epicenter
- 38.831° N, 122.802° W
- Region
- California
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.1 km horizontally, 0.2 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 34°
- Stations used
- 64
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 180 in the 60 days after this one and 69 in the 30 days before it.
After
- 1.78km NW of The Geysers, CA · 1822 days ago · 2 km deep · 1 km away
- 1.69km WNW of The Geysers, CA · 1821 days ago · 3 km deep · 4 km away
- 1.66km NE of Willits, CA · 1821 days ago · 6 km deep · 82 km away
- 1.91km ESE of The Geysers, CA · 1821 days ago · 0 km deep · 8 km away
- 2.61km NW of The Geysers, CA · 1820 days ago · 2 km deep · 6 km away · felt by 2
- 2.61km NW of The Geysers, CA · 1820 days ago · 2 km deep · 6 km away · felt by 7
- 1.73km N of The Geysers, CA · 1820 days ago · 0 km deep · 4 km away
- 1.811km N of Lake Pillsbury, CA · 1819 days ago · 4 km deep · 77 km away · felt by 2
- 2.111km N of Lake Pillsbury, CA · 1819 days ago · 6 km deep · 77 km away
- 1.98km NW of The Geysers, CA · 1819 days ago · 2 km deep · 1 km away
- 2.011km N of Lake Pillsbury, CA · 1819 days ago · 7 km deep · 77 km away
- 1.71km ESE of The Geysers, CA · 1818 days ago · 0 km deep · 8 km away
- 1.82km NE of The Geysers, CA · 1818 days ago · 2 km deep · 7 km away
- 1.62km NE of The Geysers, CA · 1818 days ago · 1 km deep · 7 km away
- 1.77km NW of The Geysers, CA · 1818 days ago · 2 km deep · 1 km away
- 1.97km NW of The Geysers, CA · 1818 days ago · 3 km deep · 1 km away · felt by 1
- 2.112km SE of Talmage, CA · 1818 days ago · 4 km deep · 35 km away
- 2.13km WNW of Crockett, CA · 1818 days ago · 8 km deep · 99 km away · felt by 4
- 1.910km WNW of The Geysers, CA · 1818 days ago · 3 km deep · 5 km away
- 1.74km W of Cobb, CA · 1817 days ago · 2 km deep · 3 km away
- 1.914km ESE of Lake Pillsbury, CA · 1817 days ago · 0 km deep · 58 km away
- 2.35km NW of The Geysers, CA · 1817 days ago · 2 km deep · 3 km away
- 2.412km N of Lake Pillsbury, CA · 1817 days ago · 8 km deep · 77 km away · felt by 2
- 2.66km NW of The Geysers, CA · 1816 days ago · 2 km deep · 3 km away · felt by 2
- 1.811km ESE of Hidden Valley Lake, CA · 1816 days ago · 9 km deep · 32 km away
- 1.59km NE of Cloverdale, CA · 1816 days ago · 4 km deep · 13 km away · felt by 1
- 2.010km NNE of Angwin, CA · 1815 days ago · 7 km deep · 40 km away
- 1.510km N of Cloverdale, CA · 1815 days ago · 6 km deep · 20 km away
- 3.014km N of Cloverdale, CA · 1815 days ago · 4 km deep · 23 km away · felt by 43
- 1.62km NE of The Geysers, CA · 1814 days ago · 2 km deep · 7 km away
- 1.89km WNW of The Geysers, CA · 1813 days ago · 2 km deep · 4 km away
- 1.79km NW of The Geysers, CA · 1813 days ago · 2 km deep · 4 km away
- 1.67km WNW of Cobb, CA · 1813 days ago · 2 km deep · 1 km away
- 2.44km NW of The Geysers, CA · 1813 days ago · 1 km deep · 3 km away
- 1.815km ESE of Hidden Valley Lake, CA · 1812 days ago · 4 km deep · 36 km away
- 2.03km WNW of Cobb, CA · 1812 days ago · 1 km deep · 4 km away
- 1.52km NNW of The Geysers, CA · 1812 days ago · 1 km deep · 5 km away
- 1.78km W of Cobb, CA · 1811 days ago · 2 km deep · 1 km away
- 1.61km NNW of The Geysers, CA · 1811 days ago · 2 km deep · 6 km away
- 1.910km NE of Navarro Head, CA · 1810 days ago · 0 km deep · 89 km away
- 3.11km NNW of The Geysers, CA · 1810 days ago · 2 km deep · 6 km away · felt by 17
- 1.53km N of The Geysers, CA · 1810 days ago · 0 km deep · 5 km away
- 1.93km N of The Geysers, CA · 1810 days ago · 0 km deep · 5 km away
- 2.75km WNW of The Geysers, CA · 1810 days ago · 3 km deep · 4 km away
- 1.61km NNE of The Geysers, CA · 1810 days ago · 0 km deep · 7 km away
- 1.814km ESE of Lake Pillsbury, CA · 1809 days ago · 7 km deep · 57 km away
- 1.96km WNW of The Geysers, CA · 1809 days ago · 3 km deep · 3 km away
- 1.96km WNW of The Geysers, CA · 1809 days ago · 3 km deep · 4 km away · felt by 1
- 1.75km W of Cobb, CA · 1809 days ago · 0 km deep · 2 km away
- 1.78km W of Cobb, CA · 1809 days ago · 3 km deep · 1 km away
- 1.88km NNW of Redwood Valley, CA · 1808 days ago · 7 km deep · 67 km away
- 1.66km W of Cobb, CA · 1808 days ago · 2 km deep · 1 km away
- 2.97km W of Cobb, CA · 1807 days ago · 2 km deep · 0 km away · felt by 13
- 2.77km W of Cobb, CA · 1807 days ago · 2 km deep · 0 km away · felt by 3
- 1.57km W of Cobb, CA · 1807 days ago · 1 km deep · 0 km away
- 1.52km NNE of The Geysers, CA · 1807 days ago · 1 km deep · 6 km away
- 1.84km W of Cobb, CA · 1807 days ago · 2 km deep · 3 km away
- 1.57km W of Cobb, CA · 1807 days ago · 2 km deep · 0 km away
- 1.66km NW of The Geysers, CA · 1807 days ago · 3 km deep · 1 km away
- 1.95km ENE of Boonville, CA · 1807 days ago · 4 km deep · 50 km away
The first 60 of 180.
Before
- 1.89km WNW of Cobb, CA · 1822 days ago · 3 km deep · 2 km away
- 1.713km SSE of Point Arena, CA · 1823 days ago · 1 km deep · 71 km away
- 2.010km N of Lake Pillsbury, CA · 1823 days ago · 8 km deep · 75 km away
- 1.69km W of Cobb, CA · 1824 days ago · 2 km deep · 2 km away
- 2.16km SSW of Yountville, CA · 1824 days ago · 8 km deep · 64 km away · felt by 4
- 1.84km NW of The Geysers, CA · 1825 days ago · 0 km deep · 3 km away
- 2.28km NW of The Geysers, CA · 1825 days ago · 2 km deep · 1 km away
- 1.58km NW of The Geysers, CA · 1825 days ago · 2 km deep · 1 km away
- 1.810km WNW of The Geysers, CA · 1826 days ago · 3 km deep · 5 km away
- 2.15km WNW of Cobb, CA · 1827 days ago · 2 km deep · 2 km away
- 1.78km W of Cobb, CA · 1827 days ago · 2 km deep · 1 km away
- 1.73km ENE of Talmage, CA · 1827 days ago · 9 km deep · 45 km away
- 1.74km W of Cobb, CA · 1828 days ago · 2 km deep · 3 km away
- 1.59km NE of Santa Rosa, CA · 1828 days ago · 4 km deep · 40 km away
- 1.55km WNW of The Geysers, CA · 1828 days ago · 1 km deep · 3 km away
- 1.910km NW of The Geysers, CA · 1828 days ago · 2 km deep · 3 km away
- 1.62km N of The Geysers, CA · 1828 days ago · 2 km deep · 6 km away
- 1.611km NE of Napa, CA · 1829 days ago · 9 km deep · 74 km away
- 1.51km NNW of The Geysers, CA · 1829 days ago · 1 km deep · 6 km away
- 1.93km SSW of Anderson Springs, CA · 1829 days ago · 2 km deep · 13 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc73636890. Read Sun, Oct 4, 2026, 9:08 AM UTC.