Biggest Earthquakes Near Helena, Montana, United States

1959-08-18 06:37:20 UTC 7.2 magnitude, 10 km depth
West Yellowstone, Montana, United States
1925-06-28 01:21:12 UTC 6.9 magnitude, 15 km depth
Townsend, Montana, United States
1983-10-28 14:06:06 UTC 6.9 magnitude, 10 km depth
Sun Valley, Idaho, United States
2020-03-31 23:52:30 UTC 6.5 magnitude, 10 km depth
Challis, Idaho, United States
1959-08-18 15:26:10 UTC 6.3 magnitude, 10 km depth
West Yellowstone, Montana, United States
1959-08-19 04:04:07 UTC 6.0 magnitude, 15 km depth
West Yellowstone, Montana, United States
2017-07-06 06:30:17 UTC 5.8 magnitude, 12 km depth
Lincoln, Montana, United States
1975-06-30 18:54:13 UTC 5.9 magnitude, 7 km depth
West Yellowstone, Montana, United States
2005-07-26 04:08:37 UTC 5.6 magnitude, 12 km depth
Dillon, Montana, United States
1959-08-18 11:03:51 UTC 5.7 magnitude, 15 km depth
West Yellowstone, Montana, United States
1976-12-08 14:40:59 UTC 5.5 magnitude, 5 km depth
West Yellowstone, Montana, United States
1984-08-22 09:46:30 UTC 5.6 magnitude, 10 km depth
Challis, Idaho, United States
2017-07-06 06:35:35 UTC 4.9 magnitude, 14 km depth
Lincoln, Montana, United States
1977-03-11 12:17:51 UTC 5.2 magnitude, 5 km depth
West Yellowstone, Montana, United States
1976-10-19 07:24:34 UTC 5.3 magnitude, 5 km depth
West Yellowstone, Montana, United States
1976-10-19 06:18:35 UTC 5.3 magnitude, 4 km depth
West Yellowstone, Montana, United States
1985-04-01 09:13:14 UTC 4.8 magnitude, 10 km depth
Seeley Lake, Montana, United States
1977-03-11 05:09:37 UTC 4.6 magnitude, 5 km depth
Townsend, Montana, United States
2017-07-06 07:02:27 UTC 4.5 magnitude, 10 km depth
Lincoln, Montana, United States
1977-08-27 05:23:49 UTC 4.5 magnitude, 10 km depth
Three Forks, Montana, United States

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