EARTH SCIENCE
EARTHQUAKES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A tsunami is caused by an earthquake or volcano.
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A tsunami causes an earthquake.
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A tsunami is measured on a Richter scale.
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A tsunami doesn’t cause any damage to property.
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Detailed explanation-1: -Most Tsunamis are generated by earthquakes. Volcanic eruption, underwater explosion, landslides and meteorite impacts are some other causes of Tsunami. Earthquake – Tsunami is generated by the earthquake because of the disturbance of the seafloor and is formed generally with vertical displacement.
Detailed explanation-2: -Sometimes earthquakes occur on faults under the ocean. If an earthquake disturbs the sea floor by shaking it up and down, then the earthquake energy can contribute to large waves at nearby coastlines, called a tsunami.
Detailed explanation-3: -The violent tremour of the earth’s crust is called an Earthquake. Tsunami refers to huge ocean waves caused by landslides. The study of earthquakes is called Seismograph. The study of the Tsunami is called Oceanograph.
Detailed explanation-4: -According to this mechanism, waves may be generated by the sudden displacement of water caused by a volcanic explosion, by a volcano’s slope failure, or more likely by a phreatomagmatic explosion and collapse/engulfment of the volcanic magmatic chambers.
Detailed explanation-5: -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.