The Beat

UH Geologists Find Evidence of Hawaiian Megatsunamis

·By civilbeat

Humongous landslides can cause humongous tsunami waves — and University of Hawaii scientists have found new evidence of such 1,000-foot waves in the Hawaiian Islands.

There have been at least 15 giant landslides in the Hawaiian Islands in the past 4 million years — one block of rock that slid of Oahu was the size of Manhattan, according to the U.S. Geological Survey. reports: 

Unlike tsunamis from earthquakes, the Hawaiian tsunamis strike when the island chain’s massive volcanoes collapse in humongous landslides. This happens about every 100,000 years, and is linked to