TY  - RPRT
TI  - Directivity of M 3.1 earthquake near Anza, California and the effect on peak ground motion
AU  - Jon Peter B. Fletcher
AU  - John Boatwright
PY  - 2019
DO  - 10.1785/0120190141
UR  - https://pubs.usgs.gov/publication/70236239
ID  - 70236239
ER  -