I want to second the OT welcome and to share my enthusiasm about lidar data in general and this rather awesome Tahoe dataset in particular!
Don't forget to look around a bit on OT, maybe play with some other datasets, have a look at our resources, register some tools, and also follow us on twitter and friend us on Facebook.
Here is the link for Plate boundary observatory velocity field in KMZ:
pull it from http://pboweb.unavco.org-->tools-->mapping resources: Velocity Field (KMZ).
This will give a map of velocities relative to stable North America it looks like that will nicely show the plate boundary velocities.
ramon