I Googled earthquake waves and found several sites -- all with the same answer. This seems to be the best with the clearest explanation.
http://www.geo.mtu.edu/UPSeis/waves.html
What type of waves are Earthquakes?
3 answers
Well, I think i need to be a bit more clear my options are limited to torsional, longitudinal, and transverse
never mind, I got it. Seismic waves are transversal.