TY - RPRT TI - VS30 at three strong-motion recording stations in Napa and Napa County, California — Main Street in downtown Napa, Napa fire station number 3, and Kreuzer Lane — Calculations determined from s-wave refraction tomography and multichannel analysis of surface waves (Rayleigh and Love) AU - Joanne H. Chan AU - Rufus D. Catchings AU - Mark R. Goldman AU - Coyn J. Criley PY - 2018 DO - 10.3133/ofr20181161 UR - https://pubs.usgs.gov/publication/ofr20181161 ID - ofr20181161 ER -