Earthquakes by city Japan 100 km
Seismic city profile

Ōamishirasato

Ōamishirasato, Japan: 2482 earthquakes of magnitude 4.0+ detected within 100 km.

Population
48,129
Residents in the indexed city record.
Earthquakes
2482
Earthquakes at M4.0+ nearby.
Max magnitude
8.0
Strongest recorded event in the current radius.
Timezone
Asia/Tokyo
Coordinates 35.512, 140.353
Nearby activity pulse
Last 30 days
2
Last 12 months
41
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 Ōamishirasato

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

Average magnitude
4.6
Average depth
53.9 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
2026-02-26 11:55 M 4.4
Kamisu
Japan
40.8 km
2026-02-19 08:24 M 4.4
Isumi
Japan
10.0 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
2026-02-03 18:36 M 4.1
Hasaki
Japan
34.9 km
2026-01-30 18:47 M 4.3
Mito
Japan
56.9 km
2026-01-29 02:47 M 4.0
Tateyama
Japan
26.6 km
2026-01-29 01:40 M 4.4
Tateyama
Japan
40.2 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
2026-01-14 02:50 M 4.3
Hasaki
Japan
37.3 km
2026-01-09 11:07 M 4.4
Mobara
Japan
28.4 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
2025-10-24 06:47 M 4.6
Chiba
Japan
76.7 km
2025-10-03 03:48 M 4.5
Kawasaki
Japan
106.4 km
2025-10-03 03:37 M 4.4
Tateyama
Japan
52.0 km
2025-09-19 18:02 M 4.6
Mito
Japan
38.9 km

Monthly profile

Recent monthly trend

2025-09 1 events
2025-10 4 events
2025-11 4 events
2025-12 1 events
2026-01 8 events
2026-02 5 events
2026-04 2 events

Historic snapshot

Earthquakes history

1
1909
1
1911
1
1916
2
1921
1
1922
4
1923
2
1924
1
1925
2
1926
2
1928
1
1929
3
1930
2
1931
1
1932
2
1935
1
1937
2
1938
1
1940
1
1941
1
1946
1
1950
2
1951
1
1952
1
1954
2
1955
3
1956
1
1961
1
1962
3
1965
2
1967
2
1971
36
1973
25
1974
23
1975
9
1976
25
1977
29
1978
15
1979
28
1980
24
1981
39
1982
41
1983
27
1984
38
1985
20
1986
36
1987
32
1988
24
1989
31
1990
23
1991
31
1992
14
1993
24
1994
22
1995
32
1996
28
1997
30
1998
20
1999
32
2000
25
2001
24
2002
33
2003
49
2004
60
2005
49
2006
60
2007
52
2008
25
2009
25
2010
344
2011
103
2012
60
2013
77
2014
64
2015
74
2016
58
2017
60
2018
52
2019
58
2020
47
2021
69
2022
76
2023
76
2024
38
2025
15
2026
Year Max magnitude Earthquakes
2026 M 4.9 15
2025 M 4.8 38
2024 M 5.2 76
2023 M 6.1 76
2022 M 5.0 69
2021 M 5.9 47
2020 M 5.9 58
2019 M 5.3 52
2018 M 5.9 60
2017 M 5.4 58
2016 M 5.4 74
2015 M 5.1 64
2014 M 5.5 77
2013 M 5.6 60
2012 M 6.1 103
2011 M 6.2 344
2010 M 5.1 25
2009 M 5.8 25
2008 M 5.1 52
2007 M 5.2 60
2006 M 5.1 49
2005 M 5.9 60
2004 M 5.8 49
2003 M 5.7 33
2002 M 5.4 24
2001 M 5.0 25
2000 M 6.2 32
1999 M 5.4 20
1998 M 5.7 30
1997 M 5.2 28
1996 M 6.2 32
1995 M 6.0 22
1994 M 5.1 24
1993 M 5.2 14
1992 M 5.8 31
1991 M 6.0 23
1990 M 6.3 31
1989 M 6.1 24
1988 M 5.7 32
1987 M 6.7 36
1986 M 6.6 20
1985 M 5.9 38
1984 M 5.4 27
1983 M 5.9 41
1982 M 5.7 39
1981 M 5.6 24
1980 M 6.0 28
1979 M 5.5 15
1978 M 5.9 29
1977 M 5.5 25
1976 M 5.0 9
1975 M 5.9 23
1974 M 5.8 25
1973 M 5.9 36
1971 M 5.5 2
1967 M 5.8 2
1965 M 5.7 3
1962 M 5.8 1
1961 M 5.9 1
1956 M 6.3 3
1955 M 5.9 2
1954 M 6.3 1
1952 M 6.0 1
1951 M 6.1 2
1950 M 6.1 1
1946 M 6.0 1
1941 M 6.0 1
1940 M 6.2 1
1938 M 6.2 2
1937 M 6.4 1
1935 M 5.7 2
1932 M 6.0 1
1931 M 6.1 2
1930 M 6.2 3
1929 M 6.2 1
1928 M 5.9 2
1926 M 5.7 2
1925 M 5.7 1
1924 M 7.0 2
1923 M 8.0 4
1922 M 6.3 1
1921 M 6.4 2
1916 M 5.9 1
1911 M 6.6 1
1909 M 5.8 1