what do you mean by seismologist? discuss focus/hypocenter and epicenter.how do we measure it's magnitude and intensity?
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Seismologists are Earth scientists, specialized in geophysics, who study the genesis and the propagation of seismic waves in geological materials.
Their research aims at interpreting the geological composition and structures of the Earth
Magnitude is related to the amount of seismic energy released at the hypocenter of the earthquake. ... The area of the fault where the sudden rupture takes place is called the focus or hypocenter of the earthquake. The point on the Earth's surface directly above the focus is called the epicenter of the earthquake.
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