TY - RPRT TI - The San Fernando, California, earthquake of February 9, 1971; a preliminary report published jointly by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1971 DO - 10.3133/pp733 UR - https://pubs.usgs.gov/publication/pp733 ID - pp733 ER -