Earthquakes by city Japan 100 km

Seismic city profile

Earthquake in Chichibu today

Chichibu, Japan: 929 earthquakes of magnitude 4.0+ detected within 100 km.

Population

61,159

Residents in the indexed city record.

Earthquakes

929

Earthquakes at M4.0+ nearby.

Max magnitude

8.0

Strongest recorded event in the current radius.

Timezone

Asia/Tokyo

Coordinates 35.990, 139.076

Nearby activity pulse

Last 30 days

Last 12 months

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

Strongest nearby event

M 8.0

Fujisawa, Japan

1923-09-01 02:58 UTC

Updated today

Earthquake in Chichibu today

No earthquake of magnitude M4.0+ has been detected today within 100 km of Chichibu.

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

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

Status today

No earthquake detected today

Strongest today

Was there an earthquake in Chichibu today?

No earthquake of magnitude M4.0+ has been detected today within 100 km of Chichibu.

When was the last earthquake near Chichibu?

The last nearby earthquake was recorded on 2026-04-05 23:17 UTC.

What is the strongest earthquake recorded near Chichibu?

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

Map

Earthquakes within 100 km of Chichibu

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

Average magnitude

4.6

Average depth

74.9 km

Timeline

Recent seismic activity

Latest 24 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
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
2025-05-12 23:33	M 4.5	Kashiwa Japan	77.9 km
2025-05-04 03:35	M 4.5	Tokyo Japan	77.8 km

Monthly profile

Recent monthly trend

2025-06 1 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 1 events

2026-02 3 events

2026-03 1 events

2026-04 2 events

Historic snapshot

Earthquakes history

Strongest years

1923 M 8.0 max · 3 earthquakes 1924 M 7.0 max · 1 earthquakes 1931 M 6.5 max · 4 earthquakes 1922 M 6.3 max · 1 earthquakes 1949 M 6.3 max · 1 earthquakes

Year	Max magnitude	Earthquakes
2026	M 4.9	7
2025	M 4.8	26
2024	M 5.2	32
2023	M 4.8	19
2022	M 5.0	27
2021	M 5.0	23
2020	M 5.3	19
2019	M 5.0	15
2018	M 4.8	14
2017	M 4.8	23
2016	M 5.4	35
2015	M 5.1	30
2014	M 5.5	31
2013	M 5.8	19
2012	M 5.5	33
2011	M 6.0	41
2010	M 4.6	5
2009	M 5.1	9
2008	M 4.9	20
2007	M 4.7	21
2006	M 5.1	21
2005	M 5.9	30
2004	M 5.8	16
2003	M 5.3	14
2002	M 4.9	8
2001	M 5.0	21
2000	M 4.9	13
1999	M 5.4	8
1998	M 5.4	11
1997	M 5.2	14
1996	M 5.6	20
1995	M 5.1	16
1994	M 5.1	10
1993	M 5.2	5
1992	M 5.0	9
1991	M 5.2	11
1990	M 5.3	11
1989	M 5.6	9
1988	M 5.6	15
1987	M 5.1	16
1986	M 4.8	10
1985	M 5.9	21
1984	M 5.4	16
1983	M 5.9	22
1982	M 4.8	8
1981	M 5.2	8
1980	M 5.4	13
1979	M 4.8	9
1978	M 5.7	10
1977	M 5.4	9
1976	M 5.4	15
1975	M 5.3	12
1974	M 5.6	7
1973	M 5.1	13
1971	M 5.5	1
1968	M 6.1	1
1967	M 5.6	1
1966	M 5.8	6
1965	M 5.7	3
1959	M 5.7	1
1956	M 5.5	1
1949	M 6.3	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	3
1922	M 6.3	1
1921	M 6.0	1
1909	M 5.8	1