TY - RPRT TI - U.S. Geological Survey strong-motion records from the Chalfant Valley, California, earthquake of July 21, 1986 AU - R.P. Maley AU - E. C. Etheredge AU - A. Acosta PY - 1986 DO - 10.3133/ofr86568 UR - https://pubs.usgs.gov/publication/ofr86568 ID - ofr86568 ER -