Earthquakes by city Japan 100 km

Seismic city profile

Earthquake in Isumi today

Isumi, Japan: 250 earthquakes of magnitude 4.0+ detected within 100 km.

Population

35,544

Residents in the indexed city record.

Earthquakes

250

Earthquakes at M4.0+ nearby.

Max magnitude

6.7

Strongest recorded event in the current radius.

Timezone

Asia/Tokyo

Coordinates 35.230, 140.405

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2026-02-19 08:24 UTC

Strongest nearby event

M 6.7

Ichihara, Japan

1987-12-17 02:08 UTC

Updated today

Earthquake in Isumi today

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

No M4.0+ event has been observed in the last 30 days around Isumi.

The strongest earthquake recorded near Isumi reached magnitude 6.7 on 1987-12-17 02:08 UTC, near Ichihara.

Status today

No earthquake detected today

Strongest today

Was there an earthquake in Isumi today?

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

When was the last earthquake near Isumi?

The last nearby earthquake was recorded on 2026-02-19 08:24 UTC.

What is the strongest earthquake recorded near Isumi?

The strongest earthquake recorded near Isumi reached magnitude 6.7 on 1987-12-17 02:08 UTC, near Ichihara.

Map

Earthquakes within 100 km of Isumi

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

Average magnitude

4.6

Average depth

45.3 km

Timeline

Recent seismic activity

Latest 25 events shown

UTC	Magnitude	Region	Depth
2026-07-17 19:45	M 4.4	Kamisu Japan	47.3 km
2026-07-16 00:01	M 4.7	Narita Japan	59.7 km
2026-07-02 07:17	M 4.3	Kamisu Japan	52.2 km
2026-06-30 15:02	M 4.4	Tateyama Japan	60.1 km
2026-06-26 18:59	M 4.2	Chiba Japan	74.2 km
2026-06-26 04:31	M 4.3	Sakura Japan	74.8 km
2026-06-26 04:00	M 4.5	Asahi Japan	54.0 km
2026-06-26 03:46	M 5.8	Kamisu Japan	43.0 km
2026-06-26 02:48	M 4.3	Saitama Japan	53.9 km
2026-06-18 18:43	M 4.2	Isumi Japan	38.6 km
2026-06-16 10:55	M 4.4	Matsudo Japan	42.4 km
2026-05-23 06:20	M 4.3	Isumi Japan	49.4 km
2026-04-05 23:17	M 4.0	Tokyo Japan	138.6 km
2026-03-28 10:36	M 4.1	Fujisawa Japan	74.4 km
2026-03-22 08:56	M 4.4	Tateyama Japan	95.1 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
2026-02-10 16:12	M 4.0	Kisarazu Japan	59.2 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
2026-01-17 16:49	M 4.3	Chiba Japan	72.1 km
2026-01-14 02:50	M 4.3	Hasaki Japan	37.3 km

Monthly profile

Recent monthly trend

2026-01 5 events

2026-02 5 events

2026-03 2 events

2026-04 1 events

2026-05 1 events

2026-06 8 events

2026-07 3 events

Historic snapshot

Earthquakes history

No historic yearly data to display yet.

Year	Max magnitude	Earthquakes