Earthquakes by city United States 100 km

Seismic city profile

Earthquake in San Marcos today

San Marcos, United States: 210 earthquakes of magnitude 4.0+ detected within 100 km.

Population

92,931

Residents in the indexed city record.

Earthquakes

210

Earthquakes at M4.0+ nearby.

Max magnitude

6.7

Strongest recorded event in the current radius.

Timezone

America/Los_Angeles

Coordinates 33.143, -117.166

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2025-04-14 17:08 UTC

Strongest nearby event

M 6.7

Menifee, United States

1918-04-21 22:32 UTC

Updated today

Earthquake in San Marcos today

No earthquake of magnitude M4.0+ has been detected today within 100 km of San Marcos.

No M4.0+ event has been observed in the last 30 days around San Marcos.

The strongest earthquake recorded near San Marcos reached magnitude 6.7 on 1918-04-21 22:32 UTC, near Menifee.

Status today

No earthquake detected today

Strongest today

Was there an earthquake in San Marcos today?

No earthquake of magnitude M4.0+ has been detected today within 100 km of San Marcos.

When was the last earthquake near San Marcos?

The last nearby earthquake was recorded on 2025-04-14 17:08 UTC.

What is the strongest earthquake recorded near San Marcos?

The strongest earthquake recorded near San Marcos reached magnitude 6.7 on 1918-04-21 22:32 UTC, near Menifee.

Map

Earthquakes within 100 km of San Marcos

The map centers on San Marcos and highlights the most recent earthquakes detected within 100 km.

Average magnitude

4.4

Average depth

8.1 km

Timeline

Recent seismic activity

Latest 0 events shown

UTC	Magnitude	Region	Depth

Monthly profile

Recent monthly trend

No monthly activity to display yet.

Historic snapshot

Earthquakes history

Strongest years

1918 M 6.7 max · 2 earthquakes 1968 M 6.6 max · 7 earthquakes 1933 M 6.4 max · 25 earthquakes 1937 M 6.0 max · 4 earthquakes 1910 M 6.0 max · 3 earthquakes

Year	Max magnitude	Earthquakes
2025	M 5.2	1
2024	M 4.1	1
2023	M 4.2	1
2022	M 4.1	2
2020	M 4.9	1
2018	M 4.4	1
2016	M 5.2	2
2013	M 4.7	1
2012	M 4.2	2
2011	M 4.1	1
2010	M 5.4	8
2009	M 4.1	1
2008	M 4.2	3
2007	M 4.7	3
2005	M 5.2	2
2002	M 4.3	2
2001	M 5.0	1
2000	M 4.0	1
1999	M 4.2	1
1998	M 4.5	1
1997	M 4.9	1
1995	M 4.3	1
1992	M 4.0	1
1991	M 4.3	1
1990	M 4.5	3
1989	M 4.8	3
1988	M 4.8	3
1986	M 5.5	9
1985	M 4.6	1
1984	M 4.5	3
1983	M 4.7	2
1982	M 4.8	4
1981	M 4.1	1
1980	M 5.3	1
1979	M 4.2	1
1978	M 4.4	1
1976	M 4.3	3
1975	M 4.9	3
1973	M 4.7	1
1971	M 4.2	3
1969	M 5.5	4
1968	M 6.6	7
1967	M 4.7	3
1966	M 4.1	1
1964	M 4.0	1
1963	M 5.3	2
1962	M 4.2	2
1961	M 4.7	10
1960	M 4.3	1
1959	M 4.4	2
1957	M 4.7	4
1956	M 4.7	2
1954	M 5.5	7
1953	M 4.3	2
1952	M 4.4	1
1951	M 4.7	3
1950	M 4.8	2
1949	M 4.0	1
1946	M 4.9	1
1944	M 4.0	2
1943	M 4.4	3
1942	M 4.9	6
1941	M 4.3	1
1940	M 5.0	4
1939	M 4.5	3
1938	M 5.2	5
1937	M 6.0	4
1936	M 4.7	1
1935	M 4.8	5
1934	M 4.1	1
1933	M 6.4	25
1932	M 4.0	1
1925	M 4.5	1
1920	M 5.0	1
1918	M 6.7	2
1916	M 5.0	1
1911	M 4.5	1
1910	M 6.0	3
1906	M 4.5	1
1902	M 4.5	1