M2.1 earthquake 4km WSW of Pleasanton, CA
A magnitude 2.1 earthquake struck 4km WSW of Pleasanton, CA on Thu, Apr 1, 2021, 9:50 AM PDT (16:50 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M3.6 15km N of Morgan Hill, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (Md, duration), micro
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 2021-04-01 16:50:34 UTC
- Depth
- 8.1 km (5.1 mi), shallow
- Epicenter
- 37.646° N, 121.912° 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
- ±0.19
- Depth from
- From location
- Station coverage gap
- 45°
- Stations used
- 47
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 29 in the 30 days before it.
After
- 1.610km NE of Milpitas, CA · 2010 days ago · 5 km deep · 18 km away
- 1.95km S of San Juan Bautista, CA · 2009 days ago · 7 km deep · 100 km away
- 2.25km S of San Juan Bautista, CA · 2009 days ago · 7 km deep · 100 km away
- 2.420km SE of Livermore, CA · 2007 days ago · 2 km deep · 29 km away
- 2.40km W of Pleasant Hill, CA · 2005 days ago · 11 km deep · 36 km away · felt by 54
- 1.81km SW of East Richmond Heights, CA · 2005 days ago · 4 km deep · 48 km away
- 1.72km WNW of Newman, CA · 2005 days ago · 1 km deep · 85 km away
- 2.914km SE of Livermore, CA · 2002 days ago · 4 km deep · 22 km away · felt by 70
- 2.314km SE of Livermore, CA · 2001 days ago · 4 km deep · 22 km away · felt by 2
- 2.09km ENE of Milpitas, CA · 2001 days ago · 7 km deep · 22 km away
- 2.13km WNW of Pacifica, CA · 2001 days ago · 9 km deep · 53 km away · felt by 13
- 2.15km WNW of San Juan Bautista, CA · 1998 days ago · 7 km deep · 92 km away
- 2.45km ESE of Aromas, CA · 1998 days ago · 6 km deep · 92 km away · felt by 3
- 1.59km ENE of Milpitas, CA · 1998 days ago · 7 km deep · 21 km away
- 2.214km SE of Livermore, CA · 1997 days ago · 4 km deep · 22 km away · felt by 2
- 1.810km ENE of Morgan Hill, CA · 1996 days ago · 6 km deep · 63 km away
- 2.27km ENE of Aromas, CA · 1994 days ago · 6 km deep · 86 km away
- 1.95km ESE of Interlaken, CA · 1994 days ago · 10 km deep · 82 km away
- 2.36km WSW of Colma, CA · 1993 days ago · 8 km deep · 53 km away · felt by 13
- 3.03km SW of San Juan Bautista, CA · 1992 days ago · 6 km deep · 96 km away · felt by 80
- 1.83km S of Concord, CA · 1991 days ago · 10 km deep · 34 km away
- 1.910km SSE of Elmira, CA · 1991 days ago · 23 km deep · 70 km away
- 1.83km WSW of Oakley, CA · 1988 days ago · 17 km deep · 41 km away
- 3.615km N of Morgan Hill, CA · 1988 days ago · 8 km deep · 49 km away · felt by 2,036
- 2.515km N of Morgan Hill, CA · 1988 days ago · 7 km deep · 49 km away · felt by 52
- 2.52km N of Piedmont, CA · 1986 days ago · 6 km deep · 36 km away · felt by 1,284
- 1.77km W of Newark, CA · 1986 days ago · 14 km deep · 22 km away
- 2.12km WNW of Newman, CA · 1986 days ago · 0 km deep · 85 km away
- 1.54km SW of Glen Ellen, CA · 1985 days ago · 5 km deep · 96 km away
- 2.82km N of Piedmont, CA · 1984 days ago · 6 km deep · 36 km away · felt by 2,614
- 2.16km W of Yountville, CA · 1983 days ago · 5 km deep · 96 km away
- 2.04km N of Hollister, CA · 1982 days ago · 7 km deep · 96 km away
- 2.11km WNW of Danville, CA · 1980 days ago · 7 km deep · 22 km away · felt by 3
- 1.63km ESE of Aromas, CA · 1980 days ago · 8 km deep · 89 km away
- 1.64km NNW of Pacifica, CA · 1978 days ago · 6 km deep · 52 km away
- 2.510km E of Alum Rock, CA · 1976 days ago · 7 km deep · 37 km away · felt by 2
- 1.50km NW of Danville, CA · 1976 days ago · 7 km deep · 21 km away
- 1.612km NNE of Hollister, CA · 1976 days ago · 7 km deep · 95 km away
- 1.85km ESE of Interlaken, CA · 1975 days ago · 10 km deep · 82 km away
- 2.315km E of Seven Trees, CA · 1974 days ago · 5 km deep · 44 km away · felt by 1
- 1.62km W of Concord, CA · 1974 days ago · 3 km deep · 38 km away
- 1.91km N of East Richmond Heights, CA · 1974 days ago · 9 km deep · 49 km away
- 2.312km SW of Muir Beach, CA · 1974 days ago · 6 km deep · 69 km away
- 1.95km W of Glen Ellen, CA · 1972 days ago · 5 km deep · 100 km away
- 1.55km WSW of Lexington Hills, CA · 1971 days ago · 13 km deep · 56 km away
- 1.510km NE of San Martin, CA · 1969 days ago · 8 km deep · 64 km away
- 1.61km ENE of Alameda, CA · 1968 days ago · 7 km deep · 31 km away
- 1.54km NW of Dublin, CA · 1967 days ago · 5 km deep · 10 km away
- 1.711km W of Bonny Doon, CA · 1966 days ago · 11 km deep · 74 km away
- 1.64km S of San Juan Bautista, CA · 1965 days ago · 5 km deep · 99 km away
- 1.616km NE of Alum Rock, CA · 1964 days ago · 3 km deep · 29 km away
- 1.82km ESE of Berkeley, CA · 1964 days ago · 9 km deep · 38 km away
- 1.72km ESE of Berkeley, CA · 1963 days ago · 9 km deep · 38 km away
- 1.96km SW of Clayton, CA · 1963 days ago · 12 km deep · 29 km away · felt by 4
- 2.03km WSW of San Juan Bautista, CA · 1961 days ago · 5 km deep · 96 km away
- 1.96km SW of Gilroy, CA · 1958 days ago · 3 km deep · 81 km away · felt by 2
- 1.65km NW of Dublin, CA · 1958 days ago · 6 km deep · 11 km away
- 2.25km NW of Dublin, CA · 1958 days ago · 3 km deep · 11 km away · felt by 46
- 2.06km WNW of Dublin, CA · 1958 days ago · 7 km deep · 12 km away
- 2.25km WNW of Dublin, CA · 1958 days ago · 7 km deep · 11 km away · felt by 10
The first 60 of 70.
Before
- 2.312km NNE of Hollister, CA · 2013 days ago · 6 km deep · 94 km away
- 1.99km NNE of Alum Rock, CA · 2013 days ago · 6 km deep · 25 km away
- 2.67km E of Alum Rock, CA · 2014 days ago · 8 km deep · 34 km away · felt by 90
- 1.712km NNE of Hollister, CA · 2015 days ago · 7 km deep · 94 km away
- 1.910km E of Gilroy, CA · 2018 days ago · 9 km deep · 82 km away
- 3.210km E of Gilroy, CA · 2019 days ago · 8 km deep · 82 km away · felt by 34
- 2.515km ENE of Alum Rock, CA · 2019 days ago · 5 km deep · 33 km away · felt by 2
- 1.710km SE of Sunol, CA · 2020 days ago · 5 km deep · 15 km away
- 1.811km ENE of Yountville, CA · 2020 days ago · 7 km deep · 92 km away · felt by 1
- 2.810km ENE of Yountville, CA · 2020 days ago · 11 km deep · 92 km away · felt by 42
- 1.710km E of Gilroy, CA · 2021 days ago · 9 km deep · 83 km away
- 1.75km WSW of Hollister, CA · 2021 days ago · 4 km deep · 100 km away
- 1.810km E of Gilroy, CA · 2021 days ago · 9 km deep · 82 km away · felt by 1
- 2.110km E of Gilroy, CA · 2021 days ago · 8 km deep · 82 km away · felt by 1
- 2.010km E of Gilroy, CA · 2021 days ago · 8 km deep · 82 km away
- 2.39km E of Gilroy, CA · 2022 days ago · 8 km deep · 82 km away · felt by 1
- 2.515km N of Morgan Hill, CA · 2022 days ago · 6 km deep · 49 km away · felt by 7
- 2.025km W of Los Banos, CA · 2022 days ago · 1 km deep · 96 km away
- 1.65km S of Yountville, CA · 2022 days ago · 5 km deep · 88 km away
- 2.710km WNW of American Canyon, CA · 2025 days ago · 9 km deep · 74 km away · felt by 20
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc73544780. Read Sat, Oct 3, 2026, 6:27 PM UTC.