Montana earthquake today: 4.2 magnitude quake strikes near Great Falls – what areas felt the shaking and what we know so far

Great Falls earthquake: A 4.2 magnitude earthquake jolted near Great Falls, Montana, on January 29, 2026, at 12:41 p.m. local time. The shallow tremor, originating about 7.5 miles north-northeast of Malmstrom Air Force Base, caused light to weak shaking across nearby communities. While no injuries or damage were reported, the event highlights Montana's seismic activity, though rare.