March 31, 1952 - Bigfork, MT - M5.5
A magnitude 5.5 earthquake occurred in Montana at 5:37 p.m. on Monday, March 31, 1952. The epicenter was located approximately 15 miles east of Bigfork, Montana—a town on the northeast shore of Flathead Lake, Montana.
Reports from some individuals on the east shore of Flathead Lake noted that pictures swung on the wall and wood in houses creaked. In Kalispell, Montana (approximately 23 miles northwest of Bigfork) it was reported that houses shook, kitchen doors rattled and tables moved.
No injuries or significant damage from this earthquake was reported.
For additional information about this earthquake:
Earthquake Summary Newspaper Articles Additional Resources
Intermountain Seismic Belt Historical Earthquake Project
- 1945 Flathead Lake, MT M5.5
- 1952 Bigfork, MT M5.5
- 1935 Helena, MT (series) M6¼
- 1929 Lombard, MT M 5.6
- 1925 Clarkston Valley, MT M 6¾
- 1959 Hebgen Lake, MT M 7.5
- 1975 Yellowstone National Park , WY M 6.1
- 1947 Virginia City, MT M 6¼
- 1945 Central Idaho M 6.0
- 1944 Central Idaho M 6.1
- 1983 Borah Peak, ID (series) M 7.3