EARTH SCIENCE
NATURAL HAZARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Heat from earth’s core slowly melts the rocks found in the Earth’s crust
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Nuclear reactions in Earth’s lower crust release electromagnetic waves
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Jagged edges along a fault generate friction (heat) between two moving plates
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According to the elastic rebound theory, rocks bend until their strength is exceeded.
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Detailed explanation-1: -Similarly, the crust of the earth can gradually store elastic stress that is released suddenly during an earthquake. This gradual accumulation and release of stress and strain is now referred to as the “elastic rebound theory” of earthquakes.
Detailed explanation-2: -Elastic rebound is what happens to the crustal material on either side of a fault during an earthquake. The idea is that a fault is stuck until the strain accumulated in the rock on either side of the fault has overcome the friction making it stick.
Detailed explanation-3: -The elastic rebound theory is an explanation for how energy is spread during earthquakes. As rocks on oppo-site sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their inter-nal strength is exceeded.
Detailed explanation-4: -In geology, the elastic-rebound theory is an explanation for how energy is released during an earthquake.
Detailed explanation-5: -Elastic rebound refers to what happens to the rocks on both sides of a fault during an earthquake as they accumulate potential energy and deform under pressure. The built up energy is released when an earthquake occurs and the tectonic plates exhibit their elastic properties and they snap back to their original form.