Earthquakes by city Japan 100 km

Seismic city profile

Earthquake in Ichihara today

Ichihara, Japan: 2235 earthquakes of magnitude 4.0+ detected within 100 km.

Population

283,531

Residents in the indexed city record.

Earthquakes

2235

Earthquakes at M4.0+ nearby.

Max magnitude

8.0

Strongest recorded event in the current radius.

Timezone

Asia/Tokyo

Coordinates 35.517, 140.083

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2026-06-26 03:46 UTC

Strongest nearby event

M 8.0

Fujisawa, Japan

1923-09-01 02:58 UTC

Updated today

Earthquake in Ichihara today

1 earthquake(s) of magnitude M4.0+ have been detected today within 100 km of Ichihara. The most recent reached M5.8 at 03:46 UTC near Narita.

2 M4.0+ event(s) have been observed in the last 30 days around Ichihara.

The strongest earthquake recorded near Ichihara reached magnitude 8.0 on 1923-09-01 02:58 UTC, near Fujisawa.

Status today

1 earthquake(s) today

Strongest today

M 5.8

Was there an earthquake in Ichihara today?

1 earthquake(s) of magnitude M4.0+ have been detected today within 100 km of Ichihara. The most recent reached M5.8 at 03:46 UTC near Narita.

When was the last earthquake near Ichihara?

The last nearby earthquake was recorded on 2026-06-26 03:46 UTC.

What is the strongest earthquake recorded near Ichihara?

The strongest earthquake recorded near Ichihara reached magnitude 8.0 on 1923-09-01 02:58 UTC, near Fujisawa.

Map

Earthquakes within 100 km of Ichihara

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

Average magnitude

4.6

Average depth

57.6 km

Timeline

Recent seismic activity

Latest 25 events shown

UTC	Magnitude	Region	Depth
2026-06-26 03:46	M 5.8	Narita Japan	43.0 km
2026-06-16 10:46	M 5.5	Saitama Japan	71.8 km
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
2026-02-19 08:24	M 4.4	Isumi Japan	10.0 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
2026-01-29 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

Monthly profile

Recent monthly trend

2025-10 2 events

2025-11 4 events

2025-12 1 events

2026-01 7 events

2026-02 6 events

2026-03 1 events

2026-04 2 events

2026-06 2 events

Historic snapshot

Earthquakes history

Strongest years

1923 M 8.0 max · 6 earthquakes 1924 M 7.0 max · 2 earthquakes 1987 M 6.7 max · 36 earthquakes 1986 M 6.6 max · 18 earthquakes 1931 M 6.5 max · 5 earthquakes

Year	Max magnitude	Earthquakes
2026	M 5.8	18
2025	M 4.8	37
2024	M 5.2	76
2023	M 6.1	65
2022	M 5.0	63
2021	M 5.9	45
2020	M 5.9	51
2019	M 5.2	52
2018	M 5.9	52
2017	M 5.4	55
2016	M 5.4	70
2015	M 5.1	65
2014	M 6.0	71
2013	M 5.6	56
2012	M 6.0	90
2011	M 6.2	241
2010	M 5.1	19
2009	M 5.8	24
2008	M 5.1	47
2007	M 5.2	52
2006	M 5.1	50
2005	M 5.9	58
2004	M 5.8	36
2003	M 5.7	31
2002	M 5.4	24
2001	M 5.0	24
2000	M 6.2	31
1999	M 5.4	16
1998	M 5.7	25
1997	M 5.2	27
1996	M 6.2	33
1995	M 5.3	23
1994	M 5.1	25
1993	M 5.2	14
1992	M 5.8	26
1991	M 6.0	22
1990	M 6.3	29
1989	M 6.1	30
1988	M 5.7	32
1987	M 6.7	36
1986	M 6.6	18
1985	M 5.9	36
1984	M 5.4	27
1983	M 5.9	40
1982	M 5.4	33
1981	M 5.6	18
1980	M 6.0	26
1979	M 5.5	16
1978	M 5.9	24
1977	M 5.5	25
1976	M 5.0	14
1975	M 5.3	22
1974	M 5.8	16
1973	M 5.9	32
1971	M 5.5	3
1968	M 6.1	1
1967	M 5.8	2
1965	M 5.7	3
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	1
1941	M 6.0	1
1938	M 5.5	1
1935	M 5.7	2
1931	M 6.5	5
1930	M 6.2	3
1929	M 6.2	1
1928	M 5.9	2
1926	M 5.7	2
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