3-D Rotatable Views:

Interactive view of the Feb, 2001 Nisqually Earthquake focal mechanism
Uses Java applet, LiveGraphics3D by Martin Kraus, to display the focal mechanism and small earthquake hypocenters in 3-D.

Interactive view of earthquake relocation in the Entiat-Chelan region of Washington
Uses LiveGraphics3D to compare earthquake locations with and without the "double-difference" algorithm.