TY - RPRT TI - Locations of geophysical instruments and survey points operated under the earthquake prediction element of the Earthquake Hazards Reduction Program 1981 AU - Thelma R. Rodriguez AU - C. Barry Raleigh PY - 1981 DO - 10.3133/ofr81955 UR - https://pubs.usgs.gov/publication/ofr81955 ID - ofr81955 ER -