Earthquake · Reviewed by USGS

M1.7 earthquake 29 km W of Hebgen Lake Estates, Montana

A magnitude 1.7 earthquake struck 29 km W of Hebgen Lake Estates, Montana at Sep 26, 2026, 09:42 UTC, at a depth of 11 km. The epicentre was 104 km (65 mi) SSW of Bozeman.

Details

Magnitude	1.7 ml
Time	Sep 26, 2026, 09:42 UTC
Depth	11.1 km
Coordinates	44.817, -111.553
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

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
1.2	24 km SSE of Mammoth, Wyoming	81 km / 50 mi	depth 7 km	Oct 25, 04:49 UTC
1.0	8 km SE of Big Sky, Montana	51 km / 32 mi	depth 13 km	Oct 21, 10:23 UTC
1.1	46 km NW of Island Park, Idaho	23 km / 14 mi	depth 6 km	Oct 20, 10:12 UTC
1.1	35 km ESE of West Yellowstone, Montana	74 km / 46 mi	depth 6 km	Oct 19, 14:36 UTC
1.0	30 km ESE of West Yellowstone, Montana	69 km / 43 mi	depth 8 km	Oct 19, 03:48 UTC
1.1	4 km ESE of Hebgen Lake Estates, Montana	33 km / 21 mi	depth 12 km	Oct 17, 15:48 UTC
1.6	34 km E of West Yellowstone, Montana	72 km / 45 mi	depth 10 km	Oct 16, 16:52 UTC
1.1	35 km E of West Yellowstone, Montana	73 km / 45 mi	depth 5 km	Oct 16, 16:52 UTC
2.1	15 km ENE of Twin Bridges, Montana	100 km / 62 mi	depth 4 km	Oct 16, 15:31 UTC
1.5	53 km SE of West Yellowstone, Montana	92 km / 57 mi	depth 2 km	Oct 15, 10:02 UTC
1.8	46 km ESE of West Yellowstone, Montana	85 km / 53 mi	depth 3 km	Oct 14, 02:22 UTC
2.0	15 km NNE of Dillon, Montana	99 km / 62 mi	depth 11 km	Oct 12, 01:23 UTC
1.2	47 km SE of Mammoth, Wyoming	97 km / 60 mi	depth 4 km	Oct 10, 10:38 UTC
1.3	1 km WSW of Lima, Montana	86 km / 53 mi	depth 9 km	Oct 9, 10:38 UTC
1.1	45 km ESE of West Yellowstone, Montana	84 km / 52 mi	depth 5 km	Oct 9, 08:55 UTC
1.4	28 km S of Ennis, Montana	33 km / 20 mi	depth -2 km	Oct 8, 19:18 UTC
1.0	4 km SSE of West Yellowstone, Montana	43 km / 27 mi	depth 13 km	Oct 7, 12:12 UTC
1.0	3 km NW of Lima, Montana	87 km / 54 mi	depth 10 km	Oct 5, 10:43 UTC
1.0	8 km NE of West Yellowstone, Montana	44 km / 28 mi	depth 11 km	Oct 4, 23:49 UTC
1.4	8 km NE of West Yellowstone, Montana	44 km / 27 mi	depth 11 km	Oct 4, 22:02 UTC
2.2	45 km NNE of Spencer, Idaho	34 km / 21 mi	depth 3 km	Oct 4, 18:36 UTC
1.0	17 km E of Lima, Montana	69 km / 43 mi	depth 1 km	Oct 1, 08:02 UTC
1.1	7 km ENE of Hebgen Lake Estates, Montana	36 km / 22 mi	depth 8 km	Sep 30, 08:58 UTC

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