Helena, Montana, has experienced minor seismic activity recently. On Sunday, March 9, 2025, a 2.8 magnitude earthquake occurred approximately two miles outside of Helena.
In the past week, there have been five earthquakes in the Helena area, with magnitudes ranging from 1.6 to 2.7.
Historically, Helena has been the site of significant earthquakes. Notably, in October 1935, a series of earthquakes struck the area, including a magnitude 6.2 mainshock on October 18 and a magnitude 6.0 aftershock on October 31. These events caused extensive property damage and resulted in four fatalities.
For the most accurate and up-to-date information on seismic activity, it is advisable to consult the United States Geological Survey (USGS) or local authorities.