Pretty intereswting. There is a better before-after pic set here http://blogs.ei.columbia.edu/2015/12/18/detecting-landslides-from-a-few-seismic-wiggles/
Many of the Norweigian fjords (where I traveled many times working aboard a RCCL ship) experienced this as well, 600 foot high waves from a icefall or rockslide. Spectacular scenery, unbelievable.
I’m definitely not pining for the fjords right now. :)
That’s a much better article overall. Thanks for posting.