Contemporary Tectonics and Seismicity of the Western United States with Emphasis on the Intermountain Seismic Belt Smith, Robert B. ; Sbar, Marc L. Abstract Publication: Geological Society of America Bulletin Pub Date: 1974 DOI: 10.1130/0016-7606(1974)85<1205:CTASOT>2.0.CO;2 Bibcode: 1974GSAB...85.1205S