In 1949 an eruption occurred on the unspoiled Canary Island of La Palma. As
magma inflated the volcano, the entire western flank—an immense pile of
rock totaling 200 cubic kilometers—dropped four meters seaward then
stopped. This huge rock mass still hangs over the western Atlantic, ready
to slide into the sea at any moment.
The legacy of this collapse will herald calamity for all living around the
margins of the Atlantic Basin, as colossal waves—initially up to 200 meters
high—fan out from the island.
Thousand-ton boulders hurled 20 meters above sea level and kilometer-long
wedges of sand rammed between the islands testify to what happened when
tsunami from the last Canary Island collapse pounded into the Bahamas, eons
ago. Next time, the Caribbean and the east coast of the U.S. will suffer
the same fate, and the destruction will be on a scale never before experienced.
What we must remember is that this is not science fiction. It is a question
of when, not if, part of La Palma collapses into the Atlantic.
http://countdown.org/end/earthquakes_12.htm#ear_above_us_the_waves
There is also evidence of Mega Tsunamis in Hawaii following similar
incidents in the past and one developing now on Maui.
