Don,

Since the earth interior is liquid, it seems a program could be designed that would show the 'waves' travelling outword from an eq or volcanic event. Add a layer for the crustal structure. Then add the various plate boundty lines. Program in the stress measurements, enter all the eq measurement data for the last 50 years and put it all into motion.

Obviously I don't have a handle on programming. Otherwise I would have an idea of the thousands of hours it would be required to design such a thing. But I think it would be awesome to see the living earth.

Stephen/AU