Earthquakes by city United States 100 km

Seismic city profile

Earthquake in South San Francisco today

South San Francisco, United States: 192 earthquakes of magnitude 4.0+ detected within 100 km.

Population

67,271

Residents in the indexed city record.

Earthquakes

192

Earthquakes at M4.0+ nearby.

Max magnitude

7.9

Strongest recorded event in the current radius.

Timezone

America/Los_Angeles

Coordinates 37.655, -122.408

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2026-04-02 08:41 UTC

Strongest nearby event

M 7.9

San Francisco, United States

1906-04-18 13:12 UTC

Updated today

Earthquake in South San Francisco today

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

1 M4.0+ event(s) have been observed in the last 30 days around South San Francisco.

The strongest earthquake recorded near South San Francisco reached magnitude 7.9 on 1906-04-18 13:12 UTC, near San Francisco.

Status today

No earthquake detected today

Strongest today

Was there an earthquake in South San Francisco today?

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

When was the last earthquake near South San Francisco?

The last nearby earthquake was recorded on 2026-04-02 08:41 UTC.

What is the strongest earthquake recorded near South San Francisco?

The strongest earthquake recorded near South San Francisco reached magnitude 7.9 on 1906-04-18 13:12 UTC, near San Francisco.

Map

Earthquakes within 100 km of South San Francisco

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

Average magnitude

4.6

Average depth

8.2 km

Timeline

Recent seismic activity

Latest 4 events shown

UTC	Magnitude	Region	Depth
2026-04-02 08:41	M 4.6	Santa Cruz United States	10.4 km
2026-02-02 15:01	M 4.2	Fremont United States	9.6 km
2025-12-14 23:30	M 4.0	Santa Rosa United States	3.1 km
2025-09-22 09:56	M 4.3	San Francisco United States	7.6 km

Monthly profile

Recent monthly trend

2025-09 1 events

2025-12 1 events

2026-02 1 events

2026-04 1 events

Historic snapshot

Earthquakes history

Strongest years

1906 M 7.9 max · 1 earthquakes 1989 M 6.9 max · 47 earthquakes 1911 M 6.5 max · 1 earthquakes 1926 M 6.4 max · 3 earthquakes 1984 M 6.2 max · 6 earthquakes

Year	Max magnitude	Earthquakes
2026	M 4.6	2
2025	M 4.3	2
2023	M 4.2	1
2022	M 5.1	4
2019	M 4.5	2
2018	M 4.4	1
2017	M 4.1	1
2015	M 4.1	2
2014	M 6.0	1
2011	M 4.1	1
2010	M 4.1	1
2009	M 4.3	1
2008	M 4.1	1
2007	M 5.5	3
2006	M 4.5	1
2005	M 4.2	2
2003	M 4.1	4
2001	M 4.4	1
2000	M 4.9	1
1999	M 4.6	2
1996	M 4.7	1
1994	M 4.1	2
1993	M 4.7	1
1992	M 4.0	1
1991	M 4.6	3
1990	M 4.4	4
1989	M 6.9	47
1988	M 5.3	5
1987	M 4.4	3
1986	M 5.7	6
1984	M 6.2	6
1982	M 4.5	2
1981	M 4.8	3
1980	M 5.8	9
1979	M 4.8	3
1978	M 4.2	3
1977	M 4.4	3
1976	M 4.0	1
1974	M 4.3	2
1973	M 4.6	2
1971	M 4.8	2
1970	M 4.6	2
1969	M 5.3	2
1968	M 4.6	1
1967	M 5.3	3
1965	M 4.9	1
1964	M 5.2	1
1963	M 4.6	1
1958	M 4.7	1
1957	M 5.3	3
1956	M 4.4	1
1955	M 5.8	1
1954	M 4.5	1
1941	M 4.5	1
1938	M 4.5	2
1937	M 4.5	1
1933	M 5.0	2
1932	M 4.9	3
1928	M 4.8	1
1927	M 5.0	2
1926	M 6.4	3
1924	M 4.5	1
1919	M 4.6	2
1917	M 4.8	1
1916	M 5.0	1
1915	M 4.5	1
1914	M 5.5	2
1912	M 4.5	1
1911	M 6.5	1
1910	M 5.7	1
1909	M 4.5	1
1906	M 7.9	1
1903	M 6.2	2
1902	M 5.4	1