GEOLOGY

Detailed explanation-1: -In some places a tsunami may cause the sea to rise vertically only a few inches or feet. In other places tsunamis have been known to surge vertically as high as 100 feet (30 meters). 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: -Most tsunamis are less than 10 feet high when they hit land, but they can reach more than 100 feet high. When a tsunami comes ashore, areas less than 25 feet above sea level and within a mile of the sea will be in the greatest danger. However, tsunamis can surge up to 10 miles inland.

Detailed explanation-4: -Tsunami waves can continously flood or inundate low lying coastal areas for hours. Flooding can extend inland by 300 meters ( 1000 feet) or more, covering large expanses of land with water and debris.

Detailed explanation-5: -The Fault in the Facts Alaska is home to the largest tsunami ever recorded. ANCHORAGE, Alaska (KTUU)-Alaska is home to the largest tsunami ever recorded. The 1, 720-foot wave hit the tall banks of Lituya Bay in Southeast Alaska in 1958. There were two people who were in the bay who died, and four survived.