TY - RPRT TI - Tomographic Rayleigh-wave group velocities in the Central Valley, California centered on the Sacramento/San Joaquin Delta AU - Jon Peter B. Fletcher AU - Jemile Erdem AU - Kevin Seats AU - Jesse Lawrence PY - 2016 DO - 10.1002/2015jb012376 UR - https://pubs.usgs.gov/publication/70188535 ID - 70188535 ER -