Earthquake · Reviewed by USGS

M1.2 earthquake 18 km E of Townsend, Montana

A magnitude 1.2 earthquake struck 18 km E of Townsend, Montana at Oct 22, 2026, 11:13 UTC, at a depth of 13 km. The epicentre was 66 km (41 mi) ESE of Helena.

Details

Magnitude	1.2 ml
Time	Oct 22, 2026, 11:13 UTC
Depth	12.7 km
Coordinates	46.301, -111.279
Felt reports	0
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

Helena66 km (41 mi)
Bozeman72 km (44 mi)
Butte102 km (64 mi)
Great Falls133 km (83 mi)
Missoula217 km (135 mi)

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
2.4	20 km SW of Whitehall, Montana	100 km / 62 mi	depth 2 km	Oct 25, 09:27 UTC
1.1	6 km SSW of Toston, Montana	25 km / 16 mi	depth 2 km	Oct 22, 09:13 UTC
2.3	6 km SSW of Toston, Montana	25 km / 16 mi	depth 1 km	Oct 22, 09:11 UTC
1.7	7 km S of Toston, Montana	25 km / 16 mi	depth 5 km	Oct 22, 08:59 UTC

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.