TY - RPRT TI - Earthquake ground motions in extensional tectonic regimes AU - P. A. Spudich AU - Joe B. Fletcher AU - Margaret Hellweg AU - J.L. Boatwright AU - C. Sullivan AU - W. B. Joyner AU - Thomas C. Hanks AU - D.M. Boore AU - A.F. McGarrr AU - L.M. Baker AU - A.G. Lindh PY - 1996 DO - 10.3133/ofr96292 UR - https://pubs.usgs.gov/publication/ofr96292 ID - ofr96292 ER -