Earthquakes by city United States 100 km
Seismic city profile

San Carlos

San Carlos, United States: 251 earthquakes of magnitude 4.0+ detected within 100 km.

Population
29,931
Residents in the indexed city record.
Earthquakes
251
Earthquakes at M4.0+ nearby.
Max magnitude
7.9
Strongest recorded event in the current radius.
Timezone
America/Los_Angeles
Coordinates 37.507, -122.261
Nearby activity pulse
Last 30 days
1
Last 12 months
3
Last nearby event: 2026-04-02 08:41 UTC
Strongest nearby event
M 7.9
US
1906-04-18 13:12 UTC

Map

Earthquakes within 100 km of San Carlos

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

Average magnitude
4.5
Average depth
7.3 km

Timeline

Recent seismic activity

Latest 3 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
2025-09-22 09:56 M 4.3
San Francisco
United States
7.6 km

Monthly profile

Recent monthly trend

2025-09 1 events
2026-02 1 events
2026-04 1 events

Historic snapshot

Earthquakes history

1
1900
1
1902
2
1903
1
1906
1
1909
2
1910
1
1911
1
1912
2
1914
1
1915
1
1916
1
1917
2
1919
1
1924
3
1926
2
1927
2
1928
3
1932
2
1933
1
1937
2
1938
1
1939
1
1941
2
1948
1
1949
3
1954
1
1955
3
1957
2
1958
2
1959
3
1963
1
1964
1
1965
3
1967
1
1969
3
1970
2
1971
2
1973
17
1974
5
1975
1
1976
3
1977
3
1978
6
1979
10
1980
5
1981
2
1982
6
1984
6
1986
3
1987
5
1988
50
1989
15
1990
5
1991
1
1992
2
1993
2
1994
1
1995
2
1996
1
1998
1
1999
1
2000
1
2001
1
2002
3
2003
2
2005
2
2006
4
2007
1
2008
1
2009
1
2010
1
2011
1
2014
1
2015
2
2017
1
2018
2
2019
1
2021
2
2022
2
2023
1
2024
1
2025
2
2026
Year Max magnitude Earthquakes
2026 M 4.6 2
2025 M 4.3 1
2024 M 4.2 1
2023 M 4.5 2
2022 M 5.1 2
2021 M 4.2 1
2019 M 4.5 2
2018 M 4.4 1
2017 M 4.1 2
2015 M 4.0 1
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 1
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 5
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 4.4 5
1974 M 5.2 17
1973 M 4.6 2
1971 M 4.8 2
1970 M 4.6 3
1969 M 4.3 1
1967 M 5.3 3
1965 M 4.9 1
1964 M 5.2 1
1963 M 5.4 3
1959 M 5.3 2
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
1948 M 4.6 2
1941 M 4.5 1
1939 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
1903 M 6.2 2
1902 M 5.4 1
1900 M 4.5 1