TY - RPRT TI - Estimation of strong ground motions from hypothetical earthquakes on the Cascadia subduction zone, Pacific Northwest AU - T. H. Heaton AU - S.H. Hartzell PY - 1986 DO - 10.3133/ofr86328 UR - https://pubs.usgs.gov/publication/ofr86328 ID - ofr86328 ER -