SEA96 - A new predictive relation for earthquake ground motions in extensional tectonic regimes - Spudich, P.; Fletcher, Joe; Hellweg, M.; Boatwright, J.; Sullivan, C.; Joyner, W.; Hanks, Thomas; Boore, D.M.; McGarr, Art; Baker, L.M.; Lindh, A.G. (Seismological Research Letters, 1997)