link to "Krakatoa" by Simon Winchester; about the famed eruption in 1883; details
the ONE-HUNDRED foot high tsunamis generated by the massive eruption:
http://www.amazon.com/exec/obidos/tg/detail/-/0066212855/qid=1104530556/sr=1-2/ref=sr_1_2/103-6540540-2444622?v=glance&s=books
That's the book hubby has.