TY - RPRT TI - Semiautomated estimates of directivity and related source properties of small to moderate southern California earthquakes using second seismic moments AU - Haoran Meng AU - Jeffrey J. McGuire AU - Yehuda Ben-Zion PY - 2020 DO - 10.1029/2019jb018566 UR - https://pubs.usgs.gov/publication/70211833 ID - 70211833 ER -