TY - RPRT TI - Summaries of technical reports, Volume XII; National Earthquake Hazards Reduction Program AU - Barbara B. Charonnat AU - Thelma R. Rodriguez AU - Wanda H. Seiders PY - 1981 DO - 10.3133/ofr81833 UR - https://pubs.usgs.gov/publication/ofr81833 ID - ofr81833 ER -