Earthquakes by city Japan 100 km
Seismic city profile

Niiza

Niiza, Japan: 1535 earthquakes of magnitude 4.0+ detected within 100 km.

Population
166,017
Residents in the indexed city record.
Earthquakes
1535
Earthquakes at M4.0+ nearby.
Max magnitude
8.0
Strongest recorded event in the current radius.
Timezone
Asia/Tokyo
Coordinates 35.821, 139.558
Nearby activity pulse
Last 30 days
2
Last 12 months
37
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 Niiza

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

Average magnitude
4.6
Average depth
68.5 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
2026-03-28 10:36 M 4.1
Fujisawa
Japan
74.4 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
2026-02-05 00:19 M 4.5
Sakura
Japan
60.0 km
2026-01-29 02:47 M 4.0
Tateyama
Japan
26.6 km
2026-01-29 01:25 M 4.4
Tateyama
Japan
19.8 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
2025-11-16 07:03 M 4.2
Mobara
Japan
68.9 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
2025-09-08 23:53 M 4.3
Chiba
Japan
66.6 km
2025-09-05 12:00 M 4.2
Saitama
Japan
70.0 km
2025-08-31 21:53 M 4.4
Chiba
Japan
51.8 km
2025-08-28 01:06 M 4.3
Yachiyo
Japan
50.6 km

Monthly profile

Recent monthly trend

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

Historic snapshot

Earthquakes history

1
1909
2
1921
1
1922
6
1923
2
1924
1
1926
1
1927
2
1928
1
1929
2
1930
4
1931
1
1938
1
1949
2
1951
1
1952
2
1956
3
1965
1
1967
1
1968
3
1971
18
1973
10
1974
19
1975
14
1976
14
1977
15
1978
11
1979
23
1980
14
1981
18
1982
32
1983
23
1984
32
1985
14
1986
25
1987
24
1988
22
1989
23
1990
19
1991
21
1992
8
1993
16
1994
22
1995
29
1996
23
1997
17
1998
15
1999
21
2000
21
2001
17
2002
18
2003
26
2004
58
2005
39
2006
36
2007
36
2008
16
2009
16
2010
76
2011
52
2012
31
2013
44
2014
48
2015
52
2016
41
2017
28
2018
31
2019
38
2020
37
2021
51
2022
40
2023
53
2024
38
2025
12
2026
Year Max magnitude Earthquakes
2026 M 4.9 12
2025 M 4.8 38
2024 M 5.2 53
2023 M 6.1 40
2022 M 5.0 51
2021 M 5.9 37
2020 M 5.3 38
2019 M 5.1 31
2018 M 4.8 28
2017 M 5.1 41
2016 M 5.4 52
2015 M 5.1 48
2014 M 5.5 44
2013 M 5.6 31
2012 M 5.8 52
2011 M 6.2 76
2010 M 5.1 16
2009 M 5.1 16
2008 M 5.1 36
2007 M 5.2 36
2006 M 5.1 39
2005 M 5.9 58
2004 M 5.8 26
2003 M 5.4 18
2002 M 4.9 17
2001 M 5.0 21
2000 M 6.2 21
1999 M 5.4 15
1998 M 5.4 17
1997 M 5.2 23
1996 M 5.6 29
1995 M 5.3 22
1994 M 5.1 16
1993 M 5.2 8
1992 M 5.8 21
1991 M 5.1 19
1990 M 6.3 23
1989 M 6.1 22
1988 M 5.6 24
1987 M 6.7 25
1986 M 4.7 14
1985 M 5.9 32
1984 M 5.4 23
1983 M 5.9 32
1982 M 4.9 18
1981 M 5.2 14
1980 M 6.0 23
1979 M 5.4 11
1978 M 5.7 15
1977 M 5.4 14
1976 M 5.4 14
1975 M 5.3 19
1974 M 5.6 10
1973 M 5.9 18
1971 M 5.5 3
1968 M 6.1 1
1967 M 5.5 1
1965 M 5.7 3
1956 M 6.3 2
1952 M 6.0 1
1951 M 6.1 2
1949 M 6.3 1
1938 M 5.5 1
1931 M 6.5 4
1930 M 6.9 2
1929 M 6.2 1
1928 M 5.9 2
1927 M 5.6 1
1926 M 5.7 1
1924 M 7.0 2
1923 M 8.0 6
1922 M 6.3 1
1921 M 6.4 2
1909 M 5.8 1