Information For a 2.7 Earthquake on 08/21/1987 near Harrison, MT

An earthquake of magnitude 2.7 and depth of 4.70 kilometers occurred 11.45 miles from Harrison, MT in Madison County at 10:05 AM.

08/21/1987 - Earthquake Incident Location
Earthquake Details
Location: 11.45 miles from Harrison, MT in Madison County, MT
Date: 08/21/1987
Time: 10:05 AM
Magnitude: 2.7 Mag
Depth: 4.70 km
More Earthquake Incidents on 08/21/1987

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Area Highlights

Natural Disasters Risk

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