GEOLOGY

Detailed explanation-1: -The crests of tsunami waves may be more than a hundred kilometers or more away from each other. Therefore, passengers on boats at sea, far away from shore where the water is deep, will not feel nor see the tsunami waves as they pass by underneath at high speeds.

Detailed explanation-2: -To detect and observe tsunamis as they move across the ocean, NOAA depends on networks of seismic and sea-level observation systems. These networks are owned and operated by a number of domestic and international organizations, including NOAA. The NOAA Tsunami Program runs the U.S. Tsunami Warning System.

Detailed explanation-3: -A: Tsunamis are disasters that can be generated in all of the world’s oceans, inland seas, and in any large body of water. Each region of the world appears to have its own cycle of frequency and pattern in generating tsunamis that range in size from small to the large and highly destructive events.

Detailed explanation-4: -Deep-ocean tsunami detection buoys are one of two types of instrument used by the Bureau of Meteorology (Bureau) to confirm the existence of tsunami waves generated by undersea earthquakes. These buoys observe and record changes in sea level out in the deep ocean.

Detailed explanation-5: -A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.