I went anyway, and there was an arm in the debris. It was furniture and sticks and rocks and huge boulders and kitchen stuff and people and everything. It was the most amazing destruction I've ever seen. Hilo residents flee an encroaching tsunami on April 1, 1946. University of Hawaii research may improve predictions about when and where tsunamis will hit.
Tsunamis have no connection with the weather nor with tides.
They usually result from a sudden rise or fall of a section of the earth's crust under or near the ocean. Volcanic activity and landslides above or below water can also generate tsunamis. A tsunami wave in the open ocean can reach speeds greater than 500 miles an hour. Locally-generated tsunamis can reach coastlines in minutes. A tsunami generally consists of a series of waves, often referred to as the tsunami wave train.