GEOLOGY

Detailed explanation-1: -Most tsunamis cause the sea to rise no more than 10 feet (3 meters).

Detailed explanation-2: -Tsunamis generally reach a maximum vertical height onshore, called a run-up height, of no more than 100 feet above sea level. A notable exception was the 1958 tsunami triggered by a landslide in a narrow bay on Alaska’s coast. Its over 1, 700-foot wave was the largest ever recorded for a tsunami.

Detailed explanation-3: -When they strike land, most tsunamis are less than 10 feet high, but in extreme cases, can exceed 100 feet when they strike near their source. The first wave may not be the last or the largest. A large tsunami can flood low-lying coastal areas more than a mile inland.

Detailed explanation-4: -Tsunami waves in the deep ocean can travel at high speeds for long periods of time for distances of thousands of kilometers and lose very little energy in the process.