A magnitude 2.7 earthquake was recorded near Helena on Sunday, March 9, 2025, according to the U.S. Geological Survey (USGS).
including the magnitude 7.3 earthquake that hit Hebgen Lake in 1959. This quake was extremely powerful when compared to any ...
Also on Sunday in Montana, a magnitude 2.2 earthquake had been reported about 8:40 a.m., about 18 miles northwest of Hebgen Lake Estates, Earthquaketrack reported. It had a depth of 13 km or 8 miles.
Similar blasts have happened in Biscuit Basin in 2009, 1991 and after the magnitude 7.2 Hebgen Lake earthquake 40 miles (64 kilometers) away in 1959. Dramatic as it was, the latest was on the ...
The U.S. Geological Survey said the quake occurred 3:38 p.m. about 2 kilometers (1.2 miles) north of the South Hills.