TY - RPRT TI - Proceedings of Conference VI: Methodology for identifying seismic gaps and soon-to-break gaps: Convened under auspicies of National Earthquake Hazards Reduction Program, 25-27 May, 1978 AU - Bryan L. Isacks AU - George Plafker PY - 1978 DO - 10.3133/ofr78943 UR - https://pubs.usgs.gov/publication/ofr78943 ID - ofr78943 ER -