Biggest Earthquakes in Big Sandy, Montana, United States
West Yellowstone, Montana, United States
7.2 magnitude earthquake
1959-08-18 06:37:20
at 06:37
August 18, 1959 UTC
Location:
Epicenter at 44.6300, -110.8910
399.0 km from West Yellowstone (247.9 miles)
Depth: 10.0 km
Townsend, Montana, United States
6.9 magnitude earthquake
1925-06-28 01:21:12
at 01:21
June 28, 1925 UTC
Location:
Epicenter at 46.3670, -111.4080
224.0 km from Townsend (139.2 miles)
Depth: 15.0 km
Sun Valley, Idaho, United States
6.9 magnitude earthquake
1983-10-28 14:06:06
at 14:06
October 28, 1983 UTC
Location:
Epicenter at 44.0580, -113.8570
541.8 km from Sun Valley (336.7 miles)
Depth: 10.0 km
West Yellowstone, Montana, United States
6.3 magnitude earthquake
1959-08-18 15:26:10
at 15:26
August 18, 1959 UTC
Location:
Epicenter at 44.8120, -110.8640
378.7 km from West Yellowstone (235.3 miles)
Depth: 10.0 km
Lincoln, Montana, United States
5.8 magnitude earthquake
2017-07-06 06:30:17
at 06:30
July 06, 2017 UTC
Location:
Epicenter at 46.8840, -112.5640
234.1 km from Lincoln (145.5 miles)
Depth: 12.0 km
Malmstrom Air Force Base, Montana, United States
4.2 magnitude earthquake
2026-01-29 19:41:09
at 19:41
January 29, 2026 UTC
Location:
Epicenter at 47.5850, -111.2020
104.9 km from Malmstrom Air Force Base (65.2 miles)
Depth: 22.0 km
West Yellowstone, Montana, United States
6.0 magnitude earthquake
1959-08-19 04:04:07
at 04:04
August 19, 1959 UTC
Location:
Epicenter at 44.8190, -111.6590
391.9 km from West Yellowstone (243.5 miles)
Depth: 15.0 km
Chester, Montana, United States
3.9 magnitude earthquake
1994-08-16 11:03:41
at 11:03
August 16, 1994 UTC
Location:
Epicenter at 48.4890, -111.3330
96.9 km from Chester (60.2 miles)
Depth: 5.0 km
Fort Benton, Montana, United States
1.9 magnitude earthquake
2024-05-03 13:37:39
at 13:37
May 03, 2024 UTC
Location:
Epicenter at 47.7390, -109.8680
52.2 km from Fort Benton (32.4 miles)
Depth: 12.0 km
Fort Benton, Montana, United States
1.6 magnitude earthquake
2024-05-09 14:13:05
at 14:13
May 09, 2024 UTC
Location:
Epicenter at 47.7590, -110.9060
75.4 km from Fort Benton (46.9 miles)
Depth: 6.0 km
Shelby, Montana, United States
3.8 magnitude earthquake
1979-08-09 17:12:55
at 17:12
August 09, 1979 UTC
Location:
Epicenter at 48.4870, -111.4660
106.1 km from Shelby (65.9 miles)
Depth: 5.0 km
Chester, Montana, United States
1.7 magnitude earthquake
2024-02-03 04:29:55
at 04:29
February 03, 2024 UTC
Location:
Epicenter at 48.4040, -111.2510
88.2 km from Chester (54.8 miles)
Depth: 8.0 km
Chester, Montana, United States
2.5 magnitude earthquake
2013-02-25 22:42:54
at 22:42
February 25, 2013 UTC
Location:
Epicenter at 48.3800, -111.3000
91.0 km from Chester (56.5 miles)
Depth: 18.0 km
Chester, Montana, United States
1.8 magnitude earthquake
2021-08-17 14:21:52
at 14:21
August 17, 2021 UTC
Location:
Epicenter at 48.3790, -111.3000
91.0 km from Chester (56.5 miles)
Depth: 5.0 km
Fort Belknap Agency, Montana, United States
3.0 magnitude earthquake
1991-12-05 10:10:00
at 10:10
December 05, 1991 UTC
Location:
Epicenter at 47.9520, -108.8950
94.1 km from Fort Belknap Agency (58.5 miles)
Depth: 10.0 km
Shelby, Montana, United States
3.5 magnitude earthquake
1978-08-30 16:33:21
at 16:33
August 30, 1978 UTC
Location:
Epicenter at 48.4900, -111.4850
107.5 km from Shelby (66.8 miles)
Depth: 5.0 km
Chester, Montana, United States
2.5 magnitude earthquake
2015-11-15 02:28:32
at 02:28
November 15, 2015 UTC
Location:
Epicenter at 48.4780, -111.3990
101.1 km from Chester (62.8 miles)
Depth: 22.0 km
Sun Prairie, Montana, United States
1.6 magnitude earthquake
2015-05-13 16:26:14
at 16:26
May 13, 2015 UTC
Location:
Epicenter at 47.8060, -111.3960
104.4 km from Sun Prairie (64.9 miles)
Depth: 7.0 km
Malmstrom Air Force Base, Montana, United States
3.2 magnitude earthquake
2026-02-01 01:22:46
at 01:22
February 01, 2026 UTC
Location:
Epicenter at 47.5300, -111.2140
109.6 km from Malmstrom Air Force Base (68.1 miles)
Depth: 9.0 km
Malmstrom Air Force Base, Montana, United States
2.7 magnitude earthquake
2026-01-30 00:46:44
at 00:46
January 30, 2026 UTC
Location:
Epicenter at 47.5540, -111.2020
107.1 km from Malmstrom Air Force Base (66.6 miles)
Depth: 16.0 km