Fig. 7. Map of NE Appalachian region showing shear wave splitting data for two earthquakes with different backazimuths (large arrows in upper left) observed in 1995. Splitting azimuth and delay are shown at each station as arrows aligned with the fast direction and scaled with delay. Splitting arrows, as well as phase vectors in the upper left, are color-coded by event, black for one and grey for the other. Note that the splitting direction for the two events is quite different, yet is fairly consistent across the region for each event. (Postscript version)