M2.3 earthquake 26km S of Hayfork, CA
A magnitude 2.3 earthquake struck 26km S of Hayfork, CA on Fri, Apr 9, 2021, 4:12 PM PDT (23:12 UTC), 38 km (24 mi) below the surface.
A larger quake followed: M4.0 20km ENE of Redway, 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
- 2021-04-09 23:12:21 UTC
- Depth
- 37.9 km (23.5 mi), shallow
- Epicenter
- 40.321° N, 123.217° 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 0.3 km horizontally, 0.8 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 45°
- Stations used
- 38
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 30 in the 30 days before it.
After
- 1.835km S of Willow Creek, CA · 2003 days ago · 24 km deep · 50 km away
- 1.910km S of Petrolia, CA · 2001 days ago · 7 km deep · 90 km away
- 1.623km N of Shasta Lake, CA · 2001 days ago · 9 km deep · 94 km away
- 1.921km SE of Anderson, CA · 1999 days ago · 12 km deep · 95 km away
- 2.27km NNW of Hayfork, CA · 1996 days ago · 32 km deep · 33 km away
- 2.741km NNE of Covelo, CA · 1996 days ago · 45 km deep · 27 km away
- 2.940km NNE of Covelo, CA · 1995 days ago · 46 km deep · 27 km away · felt by 1
- 2.338km NNE of Covelo, CA · 1995 days ago · 40 km deep · 29 km away
- 1.54km ESE of Laytonville, CA · 1995 days ago · 9 km deep · 75 km away
- 2.012km NNE of Brooktrails, CA · 1993 days ago · 9 km deep · 87 km away
- 4.020km ENE of Redway, CA · 1993 days ago · 34 km deep · 36 km away · felt by 26
- 2.141km NE of Covelo, CA · 1993 days ago · 9 km deep · 38 km away
- 1.89km ESE of Millville, CA · 1990 days ago · 16 km deep · 99 km away
- 3.915km NNW of Lake Pillsbury, CA · 1990 days ago · 7 km deep · 90 km away · felt by 14
- 1.716km NE of Willits, CA · 1989 days ago · 6 km deep · 92 km away
- 1.614km SW of Ferndale, CA · 1989 days ago · 20 km deep · 99 km away
- 2.07km N of Ferndale, CA · 1989 days ago · 9 km deep · 95 km away
- 2.116km E of Petrolia, CA · 1988 days ago · 31 km deep · 75 km away
- 1.64km ENE of Laytonville, CA · 1988 days ago · 10 km deep · 72 km away
- 1.75km NNW of Lake Pillsbury, CA · 1988 days ago · 6 km deep · 99 km away
- 2.34km NE of Laytonville, CA · 1987 days ago · 7 km deep · 71 km away · felt by 2
- 2.63km ENE of Laytonville, CA · 1987 days ago · 8 km deep · 72 km away · felt by 2
- 1.83km WSW of Shasta Lake, CA · 1985 days ago · 17 km deep · 79 km away
- 2.219km WSW of Manton, CA · 1984 days ago · 15 km deep · 99 km away
- 2.17km ENE of Laytonville, CA · 1980 days ago · 10 km deep · 70 km away
- 2.31km N of Redway, CA · 1979 days ago · 26 km deep · 56 km away
- 2.219km SSE of Rio Dell, CA · 1976 days ago · 30 km deep · 69 km away
- 2.510km NNW of Petrolia, CA · 1975 days ago · 29 km deep · 96 km away · felt by 1
- 1.83km ENE of Laytonville, CA · 1975 days ago · 10 km deep · 72 km away
- 1.729km N of Shasta Lake, CA · 1974 days ago · 14 km deep · 96 km away
- 1.615km SE of Laytonville, CA · 1972 days ago · 7 km deep · 82 km away
- 2.126km W of Rancho Tehama Reserve, CA · 1972 days ago · 1 km deep · 56 km away
- 2.326km N of Laytonville, CA · 1971 days ago · 8 km deep · 51 km away
- 1.926km N of Laytonville, CA · 1971 days ago · 9 km deep · 51 km away
- 1.812km SE of Petrolia, CA · 1971 days ago · 11 km deep · 83 km away
- 2.925km N of Shasta Lake, CA · 1971 days ago · 20 km deep · 97 km away · felt by 16
- 2.110km SSW of Ferndale, CA · 1971 days ago · 18 km deep · 93 km away
- 2.010km ENE of French Gulch, CA · 1969 days ago · 15 km deep · 75 km away
- 1.68km SSE of Laytonville, CA · 1968 days ago · 8 km deep · 80 km away
- 2.71km NNE of Humboldt Hill, CA · 1968 days ago · 5 km deep · 94 km away · felt by 199
- 2.05km WSW of Laytonville, CA · 1968 days ago · 3 km deep · 77 km away
- 2.98km W of Redway, CA · 1967 days ago · 19 km deep · 64 km away · felt by 4
- 1.88km W of Redway, CA · 1967 days ago · 18 km deep · 64 km away
- 2.88km W of Redway, CA · 1966 days ago · 18 km deep · 64 km away · felt by 5
- 1.98km NW of Laytonville, CA · 1965 days ago · 8 km deep · 70 km away
- 1.69km E of Millville, CA · 1963 days ago · 11 km deep · 100 km away
- 2.531km WNW of Weaverville, CA · 1960 days ago · 23 km deep · 62 km away
- 1.911km N of Covelo, CA · 1959 days ago · 8 km deep · 48 km away
- 2.23km NW of Willow Creek, CA · 1959 days ago · 23 km deep · 80 km away
- 1.52km WNW of Laytonville, CA · 1958 days ago · 4 km deep · 74 km away
- 1.920km NE of Red Bluff, CA · 1958 days ago · 10 km deep · 95 km away
- 1.635km E of Hydesville, CA · 1956 days ago · 24 km deep · 45 km away
- 1.717km E of Petrolia, CA · 1956 days ago · 27 km deep · 74 km away
- 1.65km N of Millville, CA · 1956 days ago · 14 km deep · 92 km away
- 1.915km N of Brooktrails, CA · 1956 days ago · 7 km deep · 84 km away
- 1.719km SW of Laytonville, CA · 1955 days ago · 8 km deep · 92 km away
- 2.130km NE of Redway, CA · 1950 days ago · 23 km deep · 30 km away
- 1.94km NNW of Lake Pillsbury, CA · 1950 days ago · 10 km deep · 100 km away
- 2.012km WNW of Lake Pillsbury, CA · 1949 days ago · 4 km deep · 98 km away
- 2.815km WNW of Willow Creek, CA · 1948 days ago · 23 km deep · 88 km away
The first 60 of 61.
Before
- 1.929km NE of Redway, CA · 2004 days ago · 4 km deep · 31 km away
- 1.928km N of Shasta Lake, CA · 2004 days ago · 15 km deep · 99 km away
- 1.512km N of Brooktrails, CA · 2004 days ago · 8 km deep · 87 km away
- 2.514km SE of Petrolia, CA · 2004 days ago · 12 km deep · 81 km away
- 2.227km WSW of Rancho Tehama Reserve, CA · 2008 days ago · 9 km deep · 58 km away
- 1.827km SSE of Blue Lake, CA · 2008 days ago · 26 km deep · 65 km away
- 1.66km WNW of Palo Cedro, CA · 2009 days ago · 15 km deep · 83 km away
- 2.019km NE of Redway, CA · 2009 days ago · 30 km deep · 40 km away
- 1.626km N of Laytonville, CA · 2011 days ago · 7 km deep · 51 km away
- 1.614km SW of Ferndale, CA · 2011 days ago · 19 km deep · 100 km away
- 2.124km ESE of Willow Creek, CA · 2012 days ago · 28 km deep · 62 km away
- 2.28km SSE of Ferndale, CA · 2012 days ago · 25 km deep · 88 km away
- 1.67km SSW of Petrolia, CA · 2013 days ago · 20 km deep · 94 km away
- 2.111km SSE of Redway, CA · 2014 days ago · 18 km deep · 57 km away
- 2.19km N of Petrolia, CA · 2015 days ago · 27 km deep · 91 km away
- 1.610km SE of Laytonville, CA · 2018 days ago · 10 km deep · 81 km away
- 2.126km N of Shasta Lake, CA · 2019 days ago · 15 km deep · 95 km away
- 1.925km N of Shasta Lake, CA · 2020 days ago · 8 km deep · 95 km away · felt by 1
- 2.013km WNW of Lake Pillsbury, CA · 2023 days ago · 1 km deep · 99 km away
- 2.434km E of Hydesville, CA · 2023 days ago · 28 km deep · 46 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc73547385. Read Sun, Oct 4, 2026, 6:12 AM UTC.