TY  - RPRT
TI  - Focal mechanisms of western Washington earthquakes and their relationship to regional tectonic stress
AU  - Li Ma
AU  - Robert S. Crosson
AU  - R.S. Ludwin
PY  - 1991
DO  - 10.3133/ofr91441d
UR  - https://pubs.usgs.gov/publication/ofr91441D
ID  - ofr91441D
ER  -