Earthquakes by city United States 100 km

Seismic city profile

Earthquake in Castro Valley today

Castro Valley, United States: 237 earthquakes of magnitude 4.0+ detected within 100 km.

Population

61,388

Residents in the indexed city record.

Earthquakes

237

Earthquakes at M4.0+ nearby.

Max magnitude

7.9

Strongest recorded event in the current radius.

Timezone

America/Los_Angeles

Coordinates 37.694, -122.086

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 Castro Valley today

No earthquake of magnitude M4.0+ has been detected today within 100 km of Castro Valley.

1 M4.0+ event(s) have been observed in the last 30 days around Castro Valley.

The strongest earthquake recorded near Castro Valley 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 Castro Valley today?

No earthquake of magnitude M4.0+ has been detected today within 100 km of Castro Valley.

When was the last earthquake near Castro Valley?

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

What is the strongest earthquake recorded near Castro Valley?

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

Map

Earthquakes within 100 km of Castro Valley

The map centers on Castro Valley and highlights the most recent earthquakes detected within 100 km.

Average magnitude

4.5

Average depth

7.5 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 · 50 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
2024	M 4.2	1
2023	M 4.5	2
2022	M 5.1	2
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	4
2006	M 4.5	2
2005	M 4.2	2
2003	M 4.0	3
2002	M 4.9	1
2001	M 4.4	1
2000	M 4.9	1
1999	M 4.6	2
1998	M 4.0	1
1996	M 4.9	2
1995	M 4.2	1
1994	M 4.1	2
1993	M 4.9	2
1992	M 4.0	1
1991	M 4.6	5
1990	M 5.4	15
1989	M 6.9	50
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	10
1979	M 5.8	6
1978	M 4.2	3
1977	M 4.4	3
1976	M 4.0	1
1975	M 4.0	1
1974	M 4.4	11
1973	M 4.6	2
1971	M 4.8	2
1970	M 4.6	2
1969	M 5.3	2
1967	M 5.3	3
1965	M 4.9	1
1964	M 5.2	1
1963	M 5.4	3
1959	M 5.3	1
1958	M 4.7	2
1957	M 5.3	3
1955	M 5.8	1
1954	M 5.3	3
1949	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	2
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 5.8	2
1909	M 4.5	1
1906	M 7.9	1
1904	M 4.5	1
1903	M 6.2	2
1902	M 5.4	1
1900	M 4.5	1