M1.7 earthquake 3km NE of Placentia, CA
A magnitude 1.7 earthquake struck 3km NE of Placentia, CA on Wed, Jun 23, 2021, 11:51 PM PDT (06:51 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.4 4km NNW of Fontana, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (ML, local (Richter)), micro
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 2021-06-24 06:51:30 UTC
- Depth
- 5.2 km (3.2 mi), shallow
- Epicenter
- 33.893° N, 117.850° 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 0.2 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 53°
- Stations used
- 69
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 71 in the 60 days after this one and 59 in the 30 days before it.
After
- 2.33km NNE of El Segundo, CA · 1927 days ago · 13 km deep · 51 km away · felt by 25
- 2.82km E of Wrightwood, CA · 1927 days ago · 8 km deep · 56 km away · felt by 17
- 2.95km SSE of Rancho Cucamonga, CA · 1926 days ago · 11 km deep · 34 km away · felt by 339
- 1.66km SW of Fontana, CA · 1923 days ago · 5 km deep · 37 km away
- 1.63km NE of Malibu, CA · 1922 days ago · 9 km deep · 88 km away
- 2.05km SW of Fontana, CA · 1921 days ago · 6 km deep · 37 km away · felt by 1
- 2.22km ENE of Gardena, CA · 1920 days ago · 11 km deep · 41 km away · felt by 12
- 2.24km NW of Fontana, CA · 1919 days ago · 6 km deep · 43 km away · felt by 25
- 1.86km SE of Ontario, CA · 1919 days ago · 7 km deep · 28 km away
- 3.44km NNW of Fontana, CA · 1919 days ago · 5 km deep · 43 km away · felt by 1,244
- 3.05km NNE of Running Springs, CA · 1919 days ago · 4 km deep · 80 km away · felt by 33
- 2.05km N of Running Springs, CA · 1918 days ago · 4 km deep · 80 km away
- 1.91km SW of Sherman Oaks, CA · 1917 days ago · 3 km deep · 62 km away · felt by 111
- 1.55km SSE of Banning, CA · 1915 days ago · 12 km deep · 92 km away
- 2.53km ENE of San Jacinto, CA · 1915 days ago · 9 km deep · 86 km away · felt by 4
- 1.617km W of Manhattan Beach, CA · 1915 days ago · 13 km deep · 69 km away
- 2.311km E of Yorba Linda, CA · 1914 days ago · 10 km deep · 15 km away · felt by 3
- 1.75km SW of Fontana, CA · 1914 days ago · 6 km deep · 37 km away
- 1.96km S of Lytle Creek, CA · 1914 days ago · 11 km deep · 48 km away · felt by 1
- 1.77km NNE of Running Springs, CA · 1914 days ago · 2 km deep · 82 km away
- 2.515km SSE of Malibu, CA · 1912 days ago · 9 km deep · 81 km away · felt by 2
- 1.96km SW of Fontana, CA · 1912 days ago · 6 km deep · 37 km away
- 1.85km NNW of Fontana, CA · 1911 days ago · 5 km deep · 43 km away
- 1.61km N of Loma Linda, CA · 1910 days ago · 16 km deep · 57 km away
- 1.55km NW of Fontana, CA · 1909 days ago · 6 km deep · 43 km away
- 2.45km NNE of Running Springs, CA · 1909 days ago · 5 km deep · 80 km away
- 1.57km NW of Rancho Cucamonga, CA · 1909 days ago · 9 km deep · 37 km away
- 1.65km NNE of Running Springs, CA · 1908 days ago · 5 km deep · 81 km away
- 1.96km E of Calimesa, CA · 1906 days ago · 17 km deep · 80 km away
- 1.66km S of Malibu Beach, CA · 1905 days ago · 15 km deep · 79 km away
- 1.59km N of Cabazon, CA · 1904 days ago · 9 km deep · 98 km away
- 1.78km E of Yorba Linda, CA · 1904 days ago · 6 km deep · 12 km away
- 1.811km NNE of Trabuco Canyon, CA · 1903 days ago · 8 km deep · 33 km away
- 1.911km SSE of Big Bear Lake, CA · 1903 days ago · 7 km deep · 94 km away
- 1.612km E of Yucaipa, CA · 1902 days ago · 18 km deep · 88 km away
- 1.75km ENE of Villa Park, CA · 1902 days ago · 8 km deep · 10 km away
- 1.93km WSW of Compton, CA · 1901 days ago · 12 km deep · 37 km away
- 2.09km WSW of Lytle Creek, CA · 1900 days ago · 6 km deep · 44 km away · felt by 1
- 1.76km NW of Corona, CA · 1899 days ago · 7 km deep · 22 km away
- 2.54km SE of Ontario, CA · 1899 days ago · 16 km deep · 28 km away · felt by 6
- 1.622km SSW of Seal Beach, CA · 1899 days ago · 13 km deep · 48 km away
- 1.61km NNW of South Gate, CA · 1896 days ago · 13 km deep · 35 km away
- 2.10km W of Brea, CA · 1894 days ago · 8 km deep · 5 km away · felt by 4
- 2.014km ENE of Yucaipa, CA · 1892 days ago · 8 km deep · 90 km away · felt by 1
- 1.511km ENE of Yucaipa, CA · 1891 days ago · 13 km deep · 87 km away
- 3.04km SW of Redlands, CA · 1891 days ago · 15 km deep · 61 km away · felt by 153
- 1.62km ENE of Colton, CA · 1890 days ago · 16 km deep · 55 km away · felt by 1
- 2.06km S of Redlands, CA · 1890 days ago · 14 km deep · 62 km away
- 1.910km SSW of Rancho Palos Verdes, CA · 1888 days ago · 0 km deep · 59 km away
- 1.51km E of Beaumont, CA · 1887 days ago · 16 km deep · 81 km away
- 1.913km W of Carlsbad, CA · 1887 days ago · 13 km deep · 90 km away
- 1.52km WSW of Costa Mesa, CA · 1886 days ago · 10 km deep · 27 km away
- 1.711km SSE of Big Bear Lake, CA · 1886 days ago · 7 km deep · 94 km away
- 3.12km NW of Hemet, CA · 1886 days ago · 17 km deep · 81 km away · felt by 573
- 1.95km N of Beaumont, CA · 1885 days ago · 13 km deep · 80 km away
- 1.63km S of Mentone, CA · 1885 days ago · 13 km deep · 68 km away
- 1.65km WNW of Muscoy, CA · 1885 days ago · 11 km deep · 53 km away
- 2.26km SE of Valle Vista, CA · 1884 days ago · 16 km deep · 95 km away · felt by 6
- 1.76km S of Calimesa, CA · 1883 days ago · 4 km deep · 74 km away
- 1.56km SSW of Redlands, CA · 1880 days ago · 14 km deep · 61 km away
The first 60 of 71.
Before
- 1.52km E of El Segundo, CA · 1928 days ago · 14 km deep · 50 km away
- 3.24km NNE of El Segundo, CA · 1928 days ago · 12 km deep · 51 km away · felt by 2,309
- 2.35km S of Mentone, CA · 1930 days ago · 17 km deep · 67 km away · felt by 1
- 2.24km NW of Muscoy, CA · 1930 days ago · 12 km deep · 55 km away · felt by 2
- 1.920km SW of Huntington Beach, CA · 1931 days ago · 2 km deep · 46 km away · felt by 1
- 1.53km NE of Grand Terrace, CA · 1932 days ago · 17 km deep · 54 km away
- 2.05km SW of Sherman Oaks, CA · 1932 days ago · 9 km deep · 64 km away · felt by 12
- 1.54km SSW of Redlands, CA · 1933 days ago · 6 km deep · 62 km away
- 2.84km WSW of Hermosa Beach, CA · 1934 days ago · 11 km deep · 55 km away · felt by 589
- 1.610km N of Big Bear Lake, CA · 1935 days ago · 2 km deep · 98 km away
- 2.05km ESE of Yucaipa, CA · 1937 days ago · 17 km deep · 80 km away · felt by 2
- 1.62km SE of Granada Hills, CA · 1937 days ago · 12 km deep · 71 km away
- 1.73km WNW of Sylmar, CA · 1938 days ago · 7 km deep · 75 km away
- 2.63km ENE of San Jacinto, CA · 1938 days ago · 10 km deep · 86 km away · felt by 27
- 1.85km S of Devore, CA · 1938 days ago · 11 km deep · 52 km away
- 1.84km NW of Villa Park, CA · 1939 days ago · 5 km deep · 6 km away
- 1.62km N of Claremont, CA · 1939 days ago · 4 km deep · 28 km away
- 1.62km WNW of Lennox, CA · 1939 days ago · 13 km deep · 48 km away
- 1.94km NW of Villa Park, CA · 1941 days ago · 3 km deep · 7 km away · felt by 4
- 1.97km ENE of Nuevo, CA · 1941 days ago · 17 km deep · 72 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci39717127. Read Sat, Oct 3, 2026, 11:36 PM UTC.