TY - RPRT TI - Estimates of seismic source regions from considerations of the earthquake distribution and regional tectonics in the Pacific Northwest AU - Craig S. Weaver AU - Kaye M. Shedlock PY - 1991 DO - 10.3133/ofr91441r UR - https://pubs.usgs.gov/publication/ofr91441R ID - ofr91441R ER -