GEOLOGY

Detailed explanation-1: -One of the signs of a potential tsunami is the occurrence of a very large earthquake that lasts for more than 20 seconds. If an area has been shaken by a very large earthquake, one should be on alert that shorelines located within the radius of the earthquake’s epicentre, may be hit by a tsunami.

Detailed explanation-2: -The phenomenon we call tsunami is a series of large waves of extremely long wavelength and period usually generated by a violent, impulsive undersea disturbance or activity near the coast or in the ocean.

Detailed explanation-3: -Natural tsunami warnings include strong or long earthquakes, a loud roar (like a train or an airplane) from the ocean, and unusual ocean behavior. The ocean could look like a fast-rising flood or a wall of water. Or, it could drain away suddenly, showing the ocean floor, reefs and fish like a very low, low tide.

Detailed explanation-4: -Be aware of the signs of a tsunami: The noise may sounds like an approaching train, plane, or whistling. Following an earthquake, move quickly to higher ground away from the coast. In case of a tsunami warning, be prepared ready to evacuate at a moment’s notice. Follow posted evacuation routes, where present.

Detailed explanation-5: -Most tsunamis are generated by shallow, great earthquakes at subductions zones. More than 80% of the world’s tsunamis occur in the Pacific along its Ring of Fire subduction zones.