Earthquakes by city Japan 100 km
Seismic city profile

Ogawamachi

Ogawamachi, Japan: 1153 earthquakes of magnitude 4.0+ detected within 100 km.

Population
28,971
Residents in the indexed city record.
Earthquakes
1153
Earthquakes at M4.0+ nearby.
Max magnitude
8.0
Strongest recorded event in the current radius.
Timezone
Asia/Tokyo
Coordinates 36.053, 139.266
Nearby activity pulse
Last 30 days
2
Last 12 months
28
Last nearby event: 2026-04-05 23:17 UTC
Strongest nearby event
M 8.0
JP
1923-09-01 02:58 UTC

Map

Earthquakes within 100 km of Ogawamachi

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

Average magnitude
4.5
Average depth
73.9 km

Timeline

Recent seismic activity

Latest 25 events shown
UTC Magnitude Region Depth
2026-04-05 23:17 M 4.0
Tokyo
Japan
138.6 km
2026-04-01 01:06 M 4.9
Kashiwa
Japan
57.2 km
2026-03-15 05:06 M 4.9
Maebashi
Japan
95.6 km
2026-02-15 02:52 M 4.1
Ōta
Japan
68.5 km
2026-02-09 12:27 M 4.3
Ōta
Japan
104.2 km
2026-02-06 15:58 M 4.2
Saitama
Japan
95.2 km
2026-01-25 02:46 M 4.3
Oyama
Japan
82.6 km
2026-01-17 16:49 M 4.3
Chiba
Japan
72.1 km
2025-12-12 10:05 M 4.8
Tsukuba
Japan
62.9 km
2025-11-13 21:36 M 4.3
Chiba
Japan
97.4 km
2025-11-08 21:24 M 4.4
Oyama
Japan
84.1 km
2025-11-04 05:00 M 4.2
Tsukuba
Japan
83.6 km
2025-10-26 13:34 M 4.6
Chiba
Japan
85.4 km
2025-10-26 03:04 M 4.6
Kiryū
Japan
12.4 km
2025-10-24 06:47 M 4.6
Chiba
Japan
76.7 km
2025-10-03 03:48 M 4.5
Kawasaki
Japan
106.4 km
2025-09-05 12:00 M 4.2
Saitama
Japan
70.0 km
2025-08-23 10:22 M 4.1
Chichibu
Japan
129.5 km
2025-08-01 13:58 M 4.4
Ōta
Japan
116.0 km
2025-07-29 18:58 M 4.1
Tsukuba
Japan
78.0 km
2025-07-23 12:49 M 4.3
Numazu
Japan
10.0 km
2025-07-23 01:21 M 4.2
Kashiwa
Japan
82.3 km
2025-06-30 16:13 M 4.0
Tsukuba
Japan
66.1 km
2025-06-20 10:54 M 4.4
Chiba
Japan
73.8 km
2025-06-13 06:18 M 4.5
Chiba
Japan
70.0 km

Monthly profile

Recent monthly trend

2025-06 3 events
2025-07 3 events
2025-08 2 events
2025-09 1 events
2025-10 4 events
2025-11 3 events
2025-12 1 events
2026-01 2 events
2026-02 3 events
2026-03 1 events
2026-04 2 events

Historic snapshot

Earthquakes history

1
1909
2
1921
1
1922
2
1923
1
1924
1
1927
1
1928
1
1929
4
1931
1
1938
2
1949
2
1956
1
1959
3
1965
1
1968
1
1971
14
1973
8
1974
19
1975
15
1976
11
1977
10
1978
10
1979
18
1980
11
1981
14
1982
23
1983
20
1984
25
1985
13
1986
19
1987
16
1988
13
1989
16
1990
19
1991
10
1992
6
1993
11
1994
17
1995
23
1996
16
1997
13
1998
9
1999
14
2000
21
2001
11
2002
14
2003
19
2004
38
2005
29
2006
25
2007
30
2008
9
2009
10
2010
50
2011
39
2012
24
2013
37
2014
37
2015
42
2016
36
2017
22
2018
21
2019
27
2020
30
2021
33
2022
28
2023
43
2024
32
2025
8
2026
Year Max magnitude Earthquakes
2026 M 4.9 8
2025 M 4.8 32
2024 M 5.2 43
2023 M 4.9 28
2022 M 5.0 33
2021 M 5.9 30
2020 M 5.3 27
2019 M 5.0 21
2018 M 4.8 22
2017 M 5.1 36
2016 M 5.4 42
2015 M 5.1 37
2014 M 5.5 37
2013 M 5.8 24
2012 M 5.5 39
2011 M 5.8 50
2010 M 4.6 10
2009 M 5.1 9
2008 M 4.9 30
2007 M 4.7 25
2006 M 5.1 29
2005 M 5.9 38
2004 M 5.8 19
2003 M 5.3 14
2002 M 4.9 11
2001 M 5.0 21
2000 M 4.9 14
1999 M 5.4 9
1998 M 5.4 13
1997 M 5.2 16
1996 M 5.6 23
1995 M 5.1 17
1994 M 5.1 11
1993 M 5.2 6
1992 M 5.0 10
1991 M 5.2 19
1990 M 5.3 16
1989 M 5.6 13
1988 M 5.6 16
1987 M 5.1 19
1986 M 4.8 13
1985 M 5.9 25
1984 M 5.4 20
1983 M 5.9 23
1982 M 4.8 14
1981 M 5.2 11
1980 M 6.0 18
1979 M 5.4 10
1978 M 5.7 10
1977 M 5.4 11
1976 M 5.4 15
1975 M 5.3 19
1974 M 5.6 8
1973 M 5.1 14
1971 M 5.5 1
1968 M 6.1 1
1965 M 5.7 3
1959 M 5.7 1
1956 M 6.3 2
1949 M 6.3 2
1938 M 5.5 1
1931 M 6.5 4
1929 M 6.2 1
1928 M 5.6 1
1927 M 5.6 1
1924 M 7.0 1
1923 M 8.0 2
1922 M 6.3 1
1921 M 6.4 2
1909 M 5.8 1