Massive debris pile reveals risk of huge tsunamis in Hawaii

[knocker]

 

WASHINGTON, DC – A mass of marine debris discovered in a giant sinkhole in the Hawaiian islands provides evidence that at least one mammoth tsunami, larger than any in Hawaii’s recorded history, has struck the islands, and that a similar disaster could happen again, new research finds.  Scientists are reporting that a wall of water up to nine meters (30 feet) high surged onto Hawaiian shores about 500 years ago. A 9.0-magnitude earthquake off the coast of the Aleutian Islands triggered the mighty wave, which left behind up to nine shipping containers worth of ocean sediment in a sinkhole on the island of Kauai.

http://news.agu.org/press-release/massive-debris-pile-reveals-risk-of-huge-tsunamis-in-hawaii/