Earthquakes by city United States 100 km

Seismic city profile

Earthquake in Helena today

Helena, United States: 37 earthquakes of magnitude 4.0+ detected within 100 km.

Population

30,581

Residents in the indexed city record.

Earthquakes

Earthquakes at M4.0+ nearby.

Max magnitude

6.6

Strongest recorded event in the current radius.

Timezone

America/Denver

Coordinates 46.593, -112.036

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2019-08-16 00:02 UTC

Strongest nearby event

M 6.6

Bozeman, United States

1925-06-28 01:21 UTC

Updated today

Earthquake in Helena today

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

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

The strongest earthquake recorded near Helena reached magnitude 6.6 on 1925-06-28 01:21 UTC, near Bozeman.

Status today

No earthquake detected today

Strongest today

Was there an earthquake in Helena today?

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

When was the last earthquake near Helena?

The last nearby earthquake was recorded on 2019-08-16 00:02 UTC.

What is the strongest earthquake recorded near Helena?

The strongest earthquake recorded near Helena reached magnitude 6.6 on 1925-06-28 01:21 UTC, near Bozeman.

Map

Earthquakes within 100 km of Helena

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

Average magnitude

4.8

Average depth

6.0 km

Timeline

Recent seismic activity

Latest 0 events shown

UTC	Magnitude	Region	Depth

Monthly profile

Recent monthly trend

No monthly activity to display yet.

Historic snapshot

Earthquakes history

Strongest years

1925 M 6.6 max · 5 earthquakes 1935 M 6.1 max · 4 earthquakes 2017 M 5.8 max · 5 earthquakes 1926 M 5.4 max · 1 earthquakes 1910 M 5.4 max · 1 earthquakes

Year	Max magnitude	Earthquakes
2019	M 4.2	3
2017	M 5.8	5
2016	M 4.3	2
2009	M 4.0	1
2000	M 4.1	2
1998	M 4.3	1
1989	M 4.0	1
1984	M 4.0	1
1977	M 4.6	2
1975	M 4.0	1
1974	M 4.4	1
1972	M 4.2	1
1966	M 4.8	1
1963	M 4.5	1
1958	M 4.4	1
1935	M 6.1	4
1929	M 4.7	1
1928	M 4.9	1
1926	M 5.4	1
1925	M 6.6	5
1910	M 5.4	1