M1.7 earthquake 2km SE of Palomar Observatory, CA
A magnitude 1.7 earthquake struck 2km SE of Palomar Observatory, CA on Sat, May 15, 2021, 1:00 PM PDT (20:00 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M3.6 4km NNW of Yucca Valley, 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
- 2021-05-15 20:00:10 UTC
- Depth
- 8.1 km (5.1 mi), shallow
- Epicenter
- 33.344° N, 116.852° 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, 0.5 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 29°
- Stations used
- 73
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 119 in the 60 days after this one and 78 in the 30 days before it.
After
- 1.59km NE of Ocotillo Wells, CA · 1967 days ago · 7 km deep · 75 km away
- 2.15km SW of Salton City, CA · 1967 days ago · 3 km deep · 81 km away · felt by 1
- 1.511km E of Yorba Linda, CA · 1966 days ago · 8 km deep · 97 km away
- 1.56km N of Banning, CA · 1966 days ago · 19 km deep · 70 km away
- 1.53km NNE of Ocotillo Wells, CA · 1965 days ago · 10 km deep · 71 km away
- 1.610km S of Borrego Springs, CA · 1965 days ago · 5 km deep · 48 km away
- 1.818km SE of Ocotillo Wells, CA · 1965 days ago · 10 km deep · 87 km away
- 1.51km NNE of Loma Linda, CA · 1963 days ago · 17 km deep · 88 km away
- 1.811km S of Salton City, CA · 1963 days ago · 9 km deep · 86 km away
- 1.524km SSW of Ocotillo Wells, CA · 1963 days ago · 11 km deep · 74 km away
- 1.910km ESE of Cabazon, CA · 1959 days ago · 13 km deep · 61 km away
- 1.517km N of Ocotillo Wells, CA · 1959 days ago · 3 km deep · 65 km away
- 1.625km ESE of Ocotillo Wells, CA · 1958 days ago · 10 km deep · 95 km away
- 2.36km NNE of Borrego Springs, CA · 1958 days ago · 12 km deep · 47 km away · felt by 1
- 2.16km ESE of Valle Vista, CA · 1958 days ago · 17 km deep · 42 km away · felt by 4
- 1.85km S of Banning, CA · 1958 days ago · 14 km deep · 60 km away
- 2.111km E of Yorba Linda, CA · 1957 days ago · 10 km deep · 98 km away · felt by 1
- 1.95km N of Yucca Valley, CA · 1956 days ago · 6 km deep · 98 km away
- 2.24km NNW of Yucca Valley, CA · 1956 days ago · 6 km deep · 97 km away · felt by 2
- 1.810km S of Idyllwild, CA · 1956 days ago · 17 km deep · 37 km away
- 1.54km NNW of Yucca Valley, CA · 1956 days ago · 4 km deep · 97 km away
- 2.34km NNW of Yucca Valley, CA · 1955 days ago · 6 km deep · 97 km away
- 1.86km SE of Cabazon, CA · 1955 days ago · 17 km deep · 61 km away
- 1.67km E of Calimesa, CA · 1954 days ago · 16 km deep · 74 km away
- 1.611km NW of Anza, CA · 1954 days ago · 16 km deep · 33 km away
- 1.516km ENE of Thermal, CA · 1954 days ago · 3 km deep · 90 km away
- 2.37km NE of Aguanga, CA · 1953 days ago · 2 km deep · 16 km away · felt by 5
- 1.69km NE of Aguanga, CA · 1953 days ago · 3 km deep · 17 km away
- 2.34km NNW of Yucca Valley, CA · 1952 days ago · 6 km deep · 97 km away · felt by 1
- 2.59km SSW of Idyllwild, CA · 1951 days ago · 14 km deep · 37 km away · felt by 5
- 1.68km S of Idyllwild, CA · 1951 days ago · 14 km deep · 37 km away
- 1.64km SE of Loma Linda, CA · 1951 days ago · 10 km deep · 83 km away
- 1.84km SE of Loma Linda, CA · 1951 days ago · 11 km deep · 83 km away
- 3.23km NW of Aguanga, CA · 1951 days ago · 13 km deep · 13 km away · felt by 159
- 2.74km NW of Aguanga, CA · 1951 days ago · 14 km deep · 14 km away · felt by 2
- 1.711km E of Yorba Linda, CA · 1950 days ago · 9 km deep · 98 km away
- 1.79km E of Moreno Valley, CA · 1950 days ago · 18 km deep · 70 km away
- 2.13km W of Calimesa, CA · 1949 days ago · 16 km deep · 75 km away
- 1.614km SE of Anza, CA · 1948 days ago · 10 km deep · 31 km away
- 2.523km NNE of Indio, CA · 1948 days ago · 9 km deep · 93 km away · felt by 2
- 1.618km N of Borrego Springs, CA · 1947 days ago · 11 km deep · 45 km away
- 1.618km N of Borrego Springs, CA · 1947 days ago · 13 km deep · 45 km away
- 2.23km WSW of Rubidoux, CA · 1946 days ago · 16 km deep · 89 km away · felt by 1
- 1.715km SE of Ocotillo Wells, CA · 1946 days ago · 3 km deep · 84 km away
- 1.821km ESE of Anza, CA · 1945 days ago · 5 km deep · 41 km away
- 1.54km SE of Loma Linda, CA · 1945 days ago · 15 km deep · 84 km away
- 2.43km NW of Aguanga, CA · 1944 days ago · 13 km deep · 14 km away · felt by 39
- 1.82km WNW of Murrieta, CA · 1944 days ago · 16 km deep · 43 km away
- 1.75km SSW of Redlands, CA · 1943 days ago · 16 km deep · 81 km away
- 2.18km ENE of Aguanga, CA · 1943 days ago · 2 km deep · 17 km away
- 1.79km ENE of Aguanga, CA · 1943 days ago · 2 km deep · 17 km away
- 1.59km ENE of Aguanga, CA · 1943 days ago · 3 km deep · 17 km away
- 1.84km SW of Redlands, CA · 1942 days ago · 11 km deep · 83 km away
- 2.38km ENE of Aguanga, CA · 1942 days ago · 2 km deep · 17 km away
- 1.69km ENE of Aguanga, CA · 1942 days ago · 2 km deep · 17 km away
- 3.010km NNE of Ocotillo Wells, CA · 1942 days ago · 9 km deep · 72 km away · felt by 1
- 2.48km ENE of Aguanga, CA · 1942 days ago · 2 km deep · 16 km away
- 1.79km ENE of Aguanga, CA · 1942 days ago · 2 km deep · 17 km away
- 1.811km W of Corona, CA · 1942 days ago · 9 km deep · 97 km away
- 1.77km ENE of Nuevo, CA · 1942 days ago · 15 km deep · 57 km away
The first 60 of 119.
Before
- 1.73km NNE of Ocotillo Wells, CA · 1968 days ago · 11 km deep · 71 km away
- 1.613km ENE of Borrego Springs, CA · 1968 days ago · 11 km deep · 58 km away
- 1.610km S of Borrego Springs, CA · 1968 days ago · 8 km deep · 49 km away
- 2.110km NNE of Banning, CA · 1970 days ago · 12 km deep · 74 km away
- 1.64km NNE of San Bernardino, CA · 1971 days ago · 7 km deep · 100 km away
- 1.69km SW of Morongo Valley, CA · 1971 days ago · 18 km deep · 74 km away
- 1.524km SSW of Ocotillo Wells, CA · 1971 days ago · 10 km deep · 74 km away
- 1.54km SE of Loma Linda, CA · 1971 days ago · 15 km deep · 83 km away
- 1.85km E of Yucaipa, CA · 1971 days ago · 12 km deep · 79 km away
- 2.14km SE of Loma Linda, CA · 1972 days ago · 17 km deep · 83 km away · felt by 2
- 2.211km NNE of Borrego Springs, CA · 1973 days ago · 12 km deep · 47 km away · felt by 1
- 1.74km S of Idyllwild, CA · 1974 days ago · 18 km deep · 42 km away
- 1.67km E of Cabazon, CA · 1974 days ago · 14 km deep · 65 km away
- 1.916km NE of Thousand Palms, CA · 1974 days ago · 9 km deep · 84 km away
- 3.04km SE of Loma Linda, CA · 1974 days ago · 16 km deep · 84 km away · felt by 187
- 1.59km ENE of Borrego Springs, CA · 1974 days ago · 4 km deep · 53 km away
- 1.610km SSE of Yucca Valley, CA · 1975 days ago · 9 km deep · 88 km away
- 1.86km NNE of Lake Henshaw, CA · 1975 days ago · 12 km deep · 12 km away
- 2.311km SSW of Idyllwild, CA · 1976 days ago · 15 km deep · 35 km away
- 2.310km SSW of Idyllwild, CA · 1976 days ago · 14 km deep · 35 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci39654591. Read Sun, Oct 4, 2026, 3:51 PM UTC.