@misc{indiciae46fd0b040463, title = {Probabilistic estimates of maximum seismic horizontal ground motion on rock in the Pacific Northwest and the adjacent outer continental shelf}, author = {David M. Perkins and Paul C. Thenhaus and Stanley L. Hanson and Joseph I. Ziony and S. T. Algermissen}, year = {1980}, doi = {10.3133/ofr80471}, url = {https://pubs.usgs.gov/publication/ofr80471}, note = {Source identifier: ofr80471} }