Earthquakes by city Japan 100 km

Seismic city profile

Earthquake in Nagaoka today

Nagaoka, Japan: 337 earthquakes of magnitude 4.0+ detected within 100 km.

Population

266,936

Residents in the indexed city record.

Earthquakes

337

Earthquakes at M4.0+ nearby.

Max magnitude

6.6

Strongest recorded event in the current radius.

Timezone

Asia/Tokyo

Coordinates 37.450, 138.850

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2026-05-31 20:54 UTC

Strongest nearby event

M 6.6

Kashiwazaki, Japan

2007-07-16 01:13 UTC

Updated today

Earthquake in Nagaoka today

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

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

The strongest earthquake recorded near Nagaoka reached magnitude 6.6 on 2007-07-16 01:13 UTC, near Kashiwazaki.

Status today

No earthquake detected today

Strongest today

Was there an earthquake in Nagaoka today?

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

When was the last earthquake near Nagaoka?

The last nearby earthquake was recorded on 2026-05-31 20:54 UTC.

What is the strongest earthquake recorded near Nagaoka?

The strongest earthquake recorded near Nagaoka reached magnitude 6.6 on 2007-07-16 01:13 UTC, near Kashiwazaki.

Map

Earthquakes within 100 km of Nagaoka

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

Average magnitude

4.6

Average depth

44.3 km

Timeline

Recent seismic activity

Latest 4 events shown

UTC	Magnitude	Region	Depth
2026-05-31 20:54	M 4.4	Jōetsu Japan	25.2 km
2026-02-13 04:58	M 4.8	Niigata Japan	177.1 km
2025-09-15 19:00	M 4.3	Nagaoka Japan	185.8 km
2025-06-10 18:14	M 4.2	Aizu-Wakamatsu Japan	130.9 km

Monthly profile

Recent monthly trend

2025-09 1 events

2026-02 1 events

2026-05 1 events

Historic snapshot

Earthquakes history

Strongest years

2007 M 6.6 max · 12 earthquakes 2004 M 6.6 max · 88 earthquakes 1916 M 6.3 max · 1 earthquakes 1941 M 6.3 max · 1 earthquakes 2011 M 6.2 max · 25 earthquakes

Year	Max magnitude	Earthquakes
2026	M 4.8	2
2025	M 4.8	6
2024	M 4.8	5
2023	M 4.6	3
2022	M 4.2	3
2021	M 4.6	4
2020	M 5.1	4
2019	M 4.2	1
2018	M 4.9	4
2017	M 4.6	3
2016	M 4.9	4
2015	M 4.8	1
2014	M 5.2	6
2013	M 5.8	11
2012	M 5.4	7
2011	M 6.2	25
2010	M 5.5	9
2009	M 4.7	6
2008	M 4.3	3
2007	M 6.6	12
2006	M 4.5	2
2005	M 4.9	17
2004	M 6.6	88
2003	M 5.1	2
2002	M 4.6	4
2001	M 5.3	7
2000	M 4.6	6
1999	M 4.5	1
1998	M 5.1	3
1997	M 4.3	1
1996	M 5.7	9
1995	M 5.4	11
1994	M 5.3	2
1993	M 4.8	4
1991	M 4.7	2
1990	M 5.3	11
1989	M 4.7	2
1988	M 4.7	1
1987	M 5.7	8
1986	M 5.3	2
1984	M 4.7	2
1983	M 5.1	4
1982	M 5.1	2
1981	M 4.7	2
1979	M 5.1	4
1978	M 4.2	1
1977	M 5.0	1
1976	M 5.4	5
1975	M 4.9	1
1973	M 4.8	2
1971	M 5.7	2
1968	M 5.6	1
1966	M 5.8	1
1964	M 6.0	1
1943	M 5.9	1
1941	M 6.3	1
1934	M 5.7	1
1933	M 6.0	1
1927	M 5.6	1
1916	M 6.3	1