GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If an Earthquake happens under the sea, what might happen?
A
A landslide
B
An avalanche
C
Another Earthquake
D
A Tsunami
Explanation: 

Detailed explanation-1: -When a great earthquake ruptures, the faulting can cause vertical slip that is large enough to disturb the overlying ocean, thus generating a tsunami that will travel outwards in all directions.

Detailed explanation-2: -A continental plate is dragged down and bent by an oceanic plate. The continental plate cannot bend any more and snaps back, pushing the seawater up. The seawater spreads in all directions as a tsunami and reaches land, sometimes hours later.

Detailed explanation-3: -If the earthquake occurs in the ocean, it can push up powerful waves, known as tsunamis. The sudden upward or downward movement of the seafloor during an earthquake creates large tsunami waves, similar to a child splashing in the bathtub.

Detailed explanation-4: -A tsunami is caused by a large and sudden displacement of the ocean. Large earthquakes below or near the ocean floor are the most common cause, but landslides, volcanic activity, certain types of weather, and near earth objects (e.g., asteroids, comets) can also cause tsunamis.

Detailed explanation-5: -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.

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