Earthquakes by city Japan 100 km

Seismic city profile

Ishioka

Ishioka, Japan: 2805 earthquakes of magnitude 4.0+ detected within 100 km.

Population

73,061

Residents in the indexed city record.

Earthquakes

2805

Earthquakes at M4.0+ nearby.

Max magnitude

7.9

Strongest recorded event in the current radius.

Timezone

Asia/Tokyo

Coordinates 36.183, 140.267

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2026-04-05 23:17 UTC

Strongest nearby event

M 7.9

Mito, Japan

2011-03-11 06:15 UTC

Map

Earthquakes within 100 km of Ishioka

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

Average magnitude

4.6

Average depth

55.3 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
2026-02-05 00:19	M 4.5	Sakura Japan	60.0 km
2026-02-03 18:36	M 4.1	Hasaki Japan	34.9 km
2026-02-03 09:03	M 4.6	Iwaki Japan	61.9 km
2026-01-30 18:47	M 4.3	Mito Japan	56.9 km
2026-01-25 02:46	M 4.3	Oyama Japan	82.6 km
2026-01-23 21:20	M 4.0	Hitachiomiya Japan	56.6 km
2026-01-17 16:49	M 4.3	Chiba Japan	72.1 km
2025-12-29 21:00	M 4.0	Hitachi-ota Japan	10.0 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
2025-11-11 21:50	M 4.2	Mito Japan	68.5 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
2025-10-11 03:30	M 4.5	Iwaki Japan	35.0 km
2025-10-03 03:48	M 4.5	Kawasaki Japan	106.4 km

Monthly profile

Recent monthly trend

2025-10 5 events

2025-11 5 events

2025-12 2 events

2026-01 4 events

2026-02 6 events

2026-03 1 events

2026-04 2 events

Historic snapshot

Earthquakes history

Strongest years

2011 M 7.9 max · 502 earthquakes 1924 M 7.1 max · 4 earthquakes 1987 M 6.7 max · 35 earthquakes 1938 M 6.7 max · 3 earthquakes 1923 M 6.7 max · 1 earthquakes

Year	Max magnitude	Earthquakes
2026	M 4.9	13
2025	M 4.9	54
2024	M 5.2	70
2023	M 6.1	68
2022	M 5.3	69
2021	M 5.9	52
2020	M 5.8	66
2019	M 5.1	50
2018	M 5.3	57
2017	M 5.4	78
2016	M 5.9	88
2015	M 5.2	75
2014	M 5.5	95
2013	M 5.6	83
2012	M 6.0	125
2011	M 7.9	502
2010	M 5.1	30
2009	M 5.8	25
2008	M 5.2	63
2007	M 5.2	47
2006	M 5.1	44
2005	M 6.3	68
2004	M 6.0	43
2003	M 5.7	39
2002	M 5.6	23
2001	M 5.2	31
2000	M 6.2	36
1999	M 5.4	18
1998	M 5.7	30
1997	M 5.2	27
1996	M 6.2	31
1995	M 5.3	26
1994	M 5.1	24
1993	M 5.3	13
1992	M 5.7	31
1991	M 6.0	27
1990	M 6.3	37
1989	M 6.1	31
1988	M 5.6	25
1987	M 6.7	35
1986	M 6.2	26
1985	M 5.9	40
1984	M 5.7	35
1983	M 5.9	42
1982	M 5.6	46
1981	M 5.5	21
1980	M 6.0	27
1979	M 5.8	17
1978	M 5.7	26
1977	M 5.6	20
1976	M 5.0	15
1975	M 5.3	26
1974	M 6.0	23
1973	M 5.9	29
1971	M 5.5	4
1969	M 5.7	2
1968	M 6.1	1
1967	M 5.8	3
1966	M 5.6	1
1965	M 5.7	4
1964	M 6.3	2
1963	M 6.3	2
1962	M 5.8	1
1961	M 5.9	1
1956	M 6.3	3
1955	M 5.9	1
1954	M 6.3	1
1952	M 6.0	1
1951	M 6.1	2
1950	M 6.1	2
1949	M 6.3	2
1948	M 6.3	2
1947	M 5.9	1
1946	M 6.0	1
1938	M 6.7	3
1935	M 5.7	1
1931	M 6.5	4
1930	M 6.1	2
1929	M 5.8	2
1928	M 6.1	3
1926	M 5.6	1
1924	M 7.1	4
1923	M 6.7	1
1922	M 6.3	2
1921	M 6.4	2
1909	M 5.8	1