A tsunami warning siren pierced the night in Hawaii and elsewhere in the Pacific Ocean Friday, after an 8.9 earthquake near the east coast of Honshu, Japan, generated tsunami waves, which move as fast ...

MARIO RITTER: Tsunamis cause damage to coastal areas in two ways. First, buildings and trees are crushed by the force of so much water moving so quickly. Then, the water moves over the land and washes ...