TY - RPRT TI - Data report for dense array recordings from nine aftershocks of the July 21, 1986 earthquake in Chalfant Valley, California AU - R.D. Luzitano PY - 1988 DO - 10.3133/ofr8871 UR - https://pubs.usgs.gov/publication/ofr8871 ID - ofr8871 ER -