Montana earthquakes

Between Oct 28, 2025 and Oct 28, 2026, the USGS recorded 32 earthquakes of magnitude 2.5 or greater in or near Montana. The largest was M 4.2, 9 km N of Black Eagle, Montana, on Jan 29, 2026. 0 happened in the past 7 days.

This is not an early-warning system. For tsunami warnings see tsunami.gov; for emergencies follow local authorities.

Past 7 days

Updated Oct 28, 2026, 7:24 AM EDT (USGS snapshot)

No M 2.5+ earthquakes in or near Montana in the past 7 days.

By size, past year

M 2.5–2.9

M 3–3.9

M 4–4.9

M 5–5.9

M 6+

Latest 50 earthquakes (M 2.5+)

Montana: latest M 2.5+ earthquakes in the past year
Magnitude	Location	Time	Depth
M 3.1	12 km N of Ovando, Montana	Oct 4, 2026, 10:34 PM EDT 23 days ago	5.0 km
M 3.7	7 km NNW of Black Eagle, Montana	Sep 18, 2026, 9:40 AM EDT 40 days ago	10.0 km
M 2.7	10 km WNW of Wisdom, Montana	Sep 12, 2026, 2:44 AM EDT 46 days ago	23.3 km
M 2.8	3 km ESE of Hebgen Lake Estates, Montana	Sep 8, 2026, 3:21 AM EDT 50 days ago	11.0 km
M 3.2	3 km NE of Seeley Lake, Montana	Aug 27, 2026, 10:38 PM EDT 61 days ago	20.4 km
M 3.0	12 km SW of Colstrip, Montana	Jul 27, 2026, 5:30 PM EDT 93 days ago	0.0 km
M 2.6	31 km ENE of Seeley Lake, Montana	Jul 12, 2026, 10:10 PM EDT 107 days ago	10.0 km
M 3.3	18 km S of Lima, Montana	Jun 30, 2026, 8:35 PM EDT 119 days ago	7.9 km
M 2.9	14 km NNE of Twin Bridges, Montana	Jun 6, 2026, 6:22 PM EDT 144 days ago	5.0 km
M 3.0	18 km WSW of Colstrip, Montana	Jun 2, 2026, 3:21 PM EDT 148 days ago	0.0 km
M 2.8	19 km NE of Lima, Montana	May 8, 2026, 4:16 AM EDT 173 days ago	10.7 km
M 3.0	16 km ESE of Butte, Montana	Apr 26, 2026, 11:32 PM EDT 184 days ago	13.2 km
M 2.8	19 km S of Lincoln, Montana	Apr 26, 2026, 6:46 AM EDT 185 days ago	5.0 km
M 2.5	16 km ESE of Harrison, Montana	Apr 14, 2026, 9:13 AM EDT 197 days ago	6.6 km
M 2.9	30 km W of Hebgen Lake Estates, Montana	Apr 4, 2026, 10:26 PM EDT 206 days ago	10.1 km
M 2.6	10 km NNE of Black Eagle, Montana	Feb 26, 2026, 1:42 PM EST 244 days ago	19.3 km
M 3.7	3 km SE of Black Eagle, Montana	Feb 12, 2026, 8:36 PM EST 257 days ago	10.0 km
M 3.0	9 km WSW of Colstrip, Montana	Feb 11, 2026, 2:25 PM EST 259 days ago	0.0 km
M 3.2	3 km NW of Malmstrom Air Force Base, Montana	Jan 31, 2026, 8:22 PM EST 269 days ago	12.7 km
M 2.7	5 km NNW of Malmstrom Air Force Base, Montana	Jan 29, 2026, 7:46 PM EST 271 days ago	16.1 km
M 4.2	9 km N of Black Eagle, Montana PAGER green	Jan 29, 2026, 2:41 PM EST 272 days ago	23.5 km
M 2.5	9 km NNE of Dillon, Montana	Jan 26, 2026, 6:05 AM EST 275 days ago	5.1 km
M 2.5	10 km NNE of Dillon, Montana	Jan 24, 2026, 10:24 AM EST 277 days ago	10.1 km
M 2.6	13 km ESE of Kicking Horse, Montana	Jan 19, 2026, 6:57 AM EST 282 days ago	5.0 km
M 2.6	10 km W of Hebgen Lake Estates, Montana	Jan 10, 2026, 1:06 PM EST 291 days ago	12.1 km
M 2.7	33 km E of West Yellowstone, Montana	Dec 31, 2025, 3:44 PM EST 301 days ago	7.4 km
M 2.8	13 km W of Colstrip, Montana	Dec 29, 2025, 3:22 PM EST 303 days ago	0.0 km
M 3.2	12 km NNW of Avon, Montana	Dec 9, 2025, 1:22 PM EST 323 days ago	12.1 km
M 3.1	27 km NE of Seeley Lake, Montana	Nov 30, 2025, 8:25 PM EST 331 days ago	30.2 km
M 3.2	12 km NW of Colstrip, Montana	Nov 26, 2025, 3:54 PM EST 336 days ago	0.0 km
M 3.1	20 km N of Heron, Montana	Nov 21, 2025, 4:24 PM EST 341 days ago	0.0 km
M 3.0	14 km W of Colstrip, Montana	Nov 5, 2025, 4:53 PM EST 357 days ago	0.0 km

Largest of the past year

Montana: 10 largest earthquakes, past 365 days
Magnitude	Location	Time	Depth
M 4.2	9 km N of Black Eagle, Montana PAGER green	Jan 29, 2026, 2:41 PM EST 272 days ago	23.5 km
M 3.7	7 km NNW of Black Eagle, Montana	Sep 18, 2026, 9:40 AM EDT 40 days ago	10.0 km
M 3.7	3 km SE of Black Eagle, Montana	Feb 12, 2026, 8:36 PM EST 257 days ago	10.0 km
M 3.3	18 km S of Lima, Montana	Jun 30, 2026, 8:35 PM EDT 119 days ago	7.9 km
M 3.2	3 km NE of Seeley Lake, Montana	Aug 27, 2026, 10:38 PM EDT 61 days ago	20.4 km
M 3.2	3 km NW of Malmstrom Air Force Base, Montana	Jan 31, 2026, 8:22 PM EST 269 days ago	12.7 km
M 3.2	12 km NNW of Avon, Montana	Dec 9, 2025, 1:22 PM EST 323 days ago	12.1 km
M 3.2	12 km NW of Colstrip, Montana	Nov 26, 2025, 3:54 PM EST 336 days ago	0.0 km
M 3.1	12 km N of Ovando, Montana	Oct 4, 2026, 10:34 PM EDT 23 days ago	5.0 km
M 3.1	27 km NE of Seeley Lake, Montana	Nov 30, 2025, 8:25 PM EST 331 days ago	30.2 km

Month by month

M 2.5+ earthquakes per month (UTC)
Month	Quakes
October 2026	1
September 2026	3
August 2026	1
July 2026	3
June 2026	2
May 2026	1
April 2026	4
February 2026	4
January 2026	6
December 2025	4
November 2025	3

Source: USGS ComCat via the FDSN event web service, snapshot Oct 28, 2026. Matched by the USGS place name.

River gauges in Montana

Missouri River at Fort Benton, MT · 2.08 ft · 4,770 cfs
Missouri River at Toston, MT · 4.58 ft · 4,210 cfs
Clark Fork above Missoula, MT · 2.89 ft · 1,830 cfs
Yellowstone River at Corwin Springs, MT · 1.28 ft · 1,180 cfs
Blackfoot River near Bonner, MT · 2.24 ft · 690 cfs
Gallatin River near Gallatin Gateway, MT · 1.43 ft · 381 cfs

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