A magnitude 5.8 earthquake struck western Montana near northwest Helena, on July 6, 2017 at 12:30 a.m. local time.
Visit the USGS event page for more information. For estimates of casualties and damage, visit the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) website.
If you felt this earthquake, report your experience on the “USGS Did You Feel It?” website for this event.
The USGS operates a 24/7 National Earthquake Information Center in Colorado that can be reached for more information at 303-273-8500.
Learn more about the USGS Earthquake Hazards Program.
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