M2.3 earthquake 17km NW of Parkfield, CA
A magnitude 2.3 earthquake struck 17km NW of Parkfield, CA on Mon, Mar 22, 2021, 1:10 AM PDT (08:10 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.6 11km WSW of Huron, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (Md, duration), micro
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 2021-03-22 08:10:28 UTC
- Depth
- 4.5 km (2.8 mi), shallow
- Epicenter
- 36.005° N, 120.572° 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 0.2 km horizontally, 0.3 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 93°
- 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: 117 in the 60 days after this one and 64 in the 30 days before it.
After
- 1.712km NNW of Avenal, CA · 2022 days ago · 7 km deep · 36 km away
- 2.712km NW of Parkfield, CA · 2021 days ago · 11 km deep · 6 km away · felt by 5
- 1.612km ENE of Cambria, CA · 2021 days ago · 5 km deep · 57 km away
- 2.012km NW of Parkfield, CA · 2021 days ago · 10 km deep · 6 km away
- 2.727km SSW of South Dos Palos, CA · 2021 days ago · 4 km deep · 83 km away · felt by 4
- 2.126km SSW of South Dos Palos, CA · 2021 days ago · 2 km deep · 84 km away
- 1.919km NNW of Coalinga, CA · 2021 days ago · 8 km deep · 33 km away
- 1.89km NNW of Pinnacles, CA · 2019 days ago · 7 km deep · 87 km away
- 1.814km SE of Kettleman City, CA · 2019 days ago · 19 km deep · 66 km away
- 1.712km SW of Huron, CA · 2018 days ago · 7 km deep · 36 km away
- 1.57km NNW of Cholame, CA · 2017 days ago · 8 km deep · 33 km away
- 2.612km NW of Pinnacles, CA · 2017 days ago · 5 km deep · 90 km away · felt by 3
- 2.026km SSW of Los Banos, CA · 2015 days ago · 1 km deep · 98 km away
- 2.027km SSW of Los Banos, CA · 2015 days ago · 3 km deep · 97 km away
- 1.921km SSW of South Dos Palos, CA · 2015 days ago · 2 km deep · 87 km away
- 2.123km NE of King City, CA · 2014 days ago · 11 km deep · 54 km away · felt by 1
- 1.93km SE of Lopez Point, CA · 2014 days ago · 3 km deep · 87 km away
- 1.519km NW of Parkfield, CA · 2014 days ago · 4 km deep · 2 km away
- 2.52km SE of San Ardo, CA · 2013 days ago · 11 km deep · 29 km away · felt by 2
- 2.17km ESE of Kettleman City, CA · 2012 days ago · 24 km deep · 61 km away
- 2.324km NW of Parkfield, CA · 2011 days ago · 6 km deep · 7 km away
- 2.412km NW of Pinnacles, CA · 2011 days ago · 6 km deep · 90 km away · felt by 1
- 2.613km NNW of San Simeon, CA · 2011 days ago · 6 km deep · 67 km away
- 1.77km SSW of Atascadero, CA · 2010 days ago · 6 km deep · 65 km away · felt by 1
- 1.88km NNE of Cayucos, CA · 2009 days ago · 4 km deep · 61 km away · felt by 1
- 2.213km NNW of San Simeon, CA · 2009 days ago · 5 km deep · 67 km away · felt by 1
- 1.94km N of Pinnacles, CA · 2009 days ago · 10 km deep · 81 km away
- 1.88km NE of San Simeon, CA · 2009 days ago · 8 km deep · 61 km away
- 2.212km NNW of Avenal, CA · 2009 days ago · 8 km deep · 36 km away
- 1.612km NNW of Avenal, CA · 2009 days ago · 8 km deep · 35 km away
- 1.65km ESE of Pinnacles, CA · 2008 days ago · 7 km deep · 74 km away
- 2.110km NW of Pinnacles, CA · 2008 days ago · 6 km deep · 88 km away
- 2.03km N of Pinnacles, CA · 2008 days ago · 6 km deep · 81 km away
- 2.010km NNW of Pinnacles, CA · 2008 days ago · 6 km deep · 87 km away
- 1.918km NW of Parkfield, CA · 2007 days ago · 4 km deep · 1 km away
- 1.83km N of Pinnacles, CA · 2007 days ago · 6 km deep · 80 km away
- 2.010km SE of Pinnacles, CA · 2007 days ago · 7 km deep · 69 km away
- 1.82km NE of Pinnacles, CA · 2006 days ago · 6 km deep · 78 km away
- 3.323km S of South Dos Palos, CA · 2006 days ago · 4 km deep · 85 km away · felt by 8
- 2.32km N of Pinnacles, CA · 2005 days ago · 7 km deep · 79 km away · felt by 2
- 1.77km ESE of Pinnacles, CA · 2004 days ago · 7 km deep · 71 km away
- 1.923km WSW of New Idria, CA · 2003 days ago · 10 km deep · 49 km away
- 1.76km SW of San Ardo, CA · 2002 days ago · 10 km deep · 34 km away
- 1.78km ESE of Greenfield, CA · 2001 days ago · 6 km deep · 62 km away · felt by 1
- 1.715km NW of Parkfield, CA · 2000 days ago · 5 km deep · 2 km away
- 2.15km NNE of Pinnacles, CA · 2000 days ago · 8 km deep · 80 km away
- 2.19km NW of Pinnacles, CA · 2000 days ago · 7 km deep · 86 km away
- 1.615km NW of Pinnacles, CA · 1999 days ago · 8 km deep · 93 km away
- 1.616km NW of Parkfield, CA · 1999 days ago · 4 km deep · 1 km away
- 1.716km NW of Parkfield, CA · 1999 days ago · 4 km deep · 1 km away
- 1.617km N of Pinnacles, CA · 1997 days ago · 10 km deep · 92 km away
- 1.512km E of Coalinga, CA · 1994 days ago · 9 km deep · 35 km away
- 2.26km NNW of Pinnacles, CA · 1993 days ago · 5 km deep · 83 km away
- 2.123km S of South Dos Palos, CA · 1992 days ago · 0 km deep · 84 km away · felt by 1
- 1.613km NNW of Avenal, CA · 1990 days ago · 7 km deep · 35 km away
- 1.612km NNW of Avenal, CA · 1990 days ago · 6 km deep · 36 km away
- 1.912km NNE of Cambria, CA · 1990 days ago · 9 km deep · 57 km away
- 1.814km ESE of Pinnacles, CA · 1990 days ago · 11 km deep · 65 km away
- 1.69km NNW of Avenal, CA · 1990 days ago · 7 km deep · 37 km away
- 2.211km NE of New Idria, CA · 1989 days ago · 9 km deep · 54 km away
The first 60 of 117.
Before
- 2.04km NNW of Pinnacles, CA · 2022 days ago · 4 km deep · 82 km away
- 2.06km NNW of Kettleman City, CA · 2023 days ago · 6 km deep · 53 km away
- 1.716km NW of Pinnacles, CA · 2024 days ago · 6 km deep · 94 km away
- 1.74km NW of New Idria, CA · 2025 days ago · 9 km deep · 50 km away
- 1.79km NNW of Pinnacles, CA · 2025 days ago · 7 km deep · 87 km away
- 2.59km NW of Pinnacles, CA · 2026 days ago · 6 km deep · 87 km away · felt by 1
- 3.410km NW of Pinnacles, CA · 2026 days ago · 7 km deep · 88 km away · felt by 12
- 2.23km N of Pinnacles, CA · 2026 days ago · 6 km deep · 80 km away
- 1.624km ENE of San Lucas, CA · 2027 days ago · 6 km deep · 29 km away
- 1.616km SSE of Tres Pinos, CA · 2027 days ago · 5 km deep · 95 km away
- 1.94km N of Pinnacles, CA · 2027 days ago · 7 km deep · 81 km away
- 1.84km NNW of Pinnacles, CA · 2028 days ago · 6 km deep · 81 km away
- 2.413km SW of Cantua Creek, CA · 2028 days ago · 15 km deep · 48 km away · felt by 1
- 2.410km SW of Tranquillity, CA · 2029 days ago · 20 km deep · 69 km away
- 2.44km N of Pinnacles, CA · 2029 days ago · 6 km deep · 81 km away · felt by 3
- 2.64km N of Pinnacles, CA · 2029 days ago · 5 km deep · 81 km away · felt by 1
- 1.622km NW of Parkfield, CA · 2031 days ago · 6 km deep · 4 km away
- 2.48km NNW of Pinnacles, CA · 2031 days ago · 6 km deep · 85 km away · felt by 2
- 2.58km NNW of Pinnacles, CA · 2031 days ago · 5 km deep · 85 km away · felt by 1
- 2.24km NNW of Pinnacles, CA · 2032 days ago · 3 km deep · 82 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc73540510. Read Sun, Oct 4, 2026, 10:22 AM UTC.