free
catdynamics | March 28, 2011"How to Survive from Tsunami" by Murata et al, is vol 32 of the Advanced Series on Ocean Engineering from World Scientific Books
Chapter 2 has the introductory phenomenology and basic physics, and the how-to-survive bit.
In view of recent events, WorldSci is putting it up on their website for free:
Knowledge for Tsunami Survival (pdf)
Obviously WorldSci would be grateful if you became interested enough to buy the whole book...(ToC pdf)
- it actually looks quite interesting.