Seismic Hazard Map
Magnitude 4.2 WESTERN MONTANA
Wednesday, March 22, 2006 at 17:24:32 UTC
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

