Earthquakes in the Conterminous United States-- Over 35,000 earthquakes have occurred in or near the conterminous United States and are displayed on this colorful wall map. The epicenter symbol sizes are scaled into four magnitude categories: magnitudes less than 4.0, magnitudes 4.0 - 4.9, magnitudes 5.0 - 5.9, and magnitudes 6.0 and greater. Sixty-three notable earthquakes are identified and described in a table on the map. (Base map reprinted with permission of Raven Maps & Images, Medford, Oregon.) Use this map to teach about physical geography as well as earthquakes and tectonics. Map scale is 1:3,500 ,000 and measures 57" x 38".