Information For a 3.2 Earthquake on 07/21/1987 near Harrison, MT

An earthquake of magnitude 3.2 and depth of 6.00 kilometers occurred 11.97 miles from Harrison, MT in Madison County at 10:18 PM.

07/21/1987 - Earthquake Incident Location
Earthquake Details
Location: 11.97 miles from Harrison, MT in Madison County, MT
Date: 07/21/1987
Time: 10:18 PM
Magnitude: 3.2 Mag
Depth: 6.00 km
More Earthquake Incidents on 07/21/1987

Area Highlights

Natural Disasters Risk

  • Hail Risk Hail Risk is Very Low
  • Tornados Tornado Risk is Very Low
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