Earthquakes by city Japan 100 km
Seismic city profile

Tamba-Sasayama

Tamba-Sasayama, Japan: 189 earthquakes of magnitude 4.0+ detected within 100 km.

Population
39,611
Residents in the indexed city record.
Earthquakes
189
Earthquakes at M4.0+ nearby.
Max magnitude
7.0
Strongest recorded event in the current radius.
Timezone
Asia/Tokyo
Coordinates 35.073, 135.218
Nearby activity pulse
Last 30 days
0
Last 12 months
6
Last nearby event: 2026-03-25 11:31 UTC
Strongest nearby event
M 7.0
JP
1927-03-07 09:27 UTC

Map

Earthquakes within 100 km of Tamba-Sasayama

The map centers on Tamba-Sasayama and highlights the most recent earthquakes detected within 100 km.

Average magnitude
4.6
Average depth
162.5 km

Timeline

Recent seismic activity

Latest 6 events shown
UTC Magnitude Region Depth
2026-03-25 11:31 M 4.2
Kobe
Japan
10.0 km
2026-03-12 17:41 M 4.1
Maizuru
Japan
369.1 km
2026-03-09 11:59 M 4.1
Maizuru
Japan
370.5 km
2025-12-26 21:09 M 4.2
Maizuru
Japan
352.6 km
2025-10-20 19:04 M 5.1 Maizuru
Japan
360.1 km
2025-06-07 14:46 M 4.1
Obama
Japan
352.5 km

Monthly profile

Recent monthly trend

2025-06 1 events
2025-10 1 events
2025-12 1 events
2026-03 3 events

Historic snapshot

Earthquakes history

2
1925
3
1927
1
1936
1
1961
1
1963
1
1967
1
1968
3
1973
2
1974
1
1975
1
1977
4
1978
4
1979
3
1980
1
1983
7
1984
6
1985
1
1986
4
1987
1
1988
2
1989
5
1990
1
1992
7
1994
26
1995
3
1997
3
1998
3
1999
7
2000
7
2001
4
2002
5
2003
6
2004
3
2006
5
2007
5
2008
2
2010
1
2011
1
2012
7
2013
8
2014
3
2015
2
2016
3
2018
2
2019
1
2020
1
2021
7
2022
1
2023
4
2024
3
2025
3
2026
Year Max magnitude Earthquakes
2026 M 4.2 3
2025 M 5.1 3
2024 M 4.4 4
2023 M 4.4 1
2022 M 4.6 7
2021 M 4.2 1
2020 M 4.1 1
2019 M 4.2 2
2018 M 5.5 3
2016 M 4.2 2
2015 M 4.6 3
2014 M 5.0 8
2013 M 5.8 7
2012 M 4.3 1
2011 M 4.4 1
2010 M 4.9 2
2008 M 4.2 5
2007 M 5.1 5
2006 M 4.3 3
2004 M 4.6 6
2003 M 5.4 5
2002 M 4.5 4
2001 M 5.3 7
2000 M 5.5 7
1999 M 5.1 3
1998 M 4.5 3
1997 M 4.6 3
1995 M 6.9 26
1994 M 5.1 7
1992 M 5.8 1
1990 M 6.1 5
1989 M 4.2 2
1988 M 4.8 1
1987 M 4.9 4
1986 M 4.4 1
1985 M 4.8 6
1984 M 5.0 7
1983 M 4.8 1
1980 M 5.8 3
1979 M 4.9 4
1978 M 4.8 4
1977 M 4.2 1
1975 M 4.4 1
1974 M 4.8 2
1973 M 5.1 3
1968 M 5.7 1
1967 M 6.3 1
1963 M 6.3 1
1961 M 5.6 1
1936 M 6.0 1
1927 M 7.0 3
1925 M 6.6 2