About C.200 minerals are known as rock-forming minerals.
earthquake magnitude is strongly influenced by where area is the portion of the fault that slipped, rigidity is the strength of the rock along the fault, and slip is the distance the fault moved. Therefore, a bigger magnitude will result from stronger rock material, a larger region, or more seismic movement.
What are the main causes of earthquake?
The majority of crustal faults on Earth don't shift for a very long period. But occasionally, tectonic pressures cause the rock on either side of a fault to gradually deform over time. Earthquakes typically result from subsurface rock breaking unexpectedly and rapid movement along a fault. The seismic waves that cause the ground to tremble are brought on by this quick release of energy.
The plates or rock blocks begin to move during and after the earthquake, and they keep moving until they become trapped once more. The focus or hypocenter of an earthquake is the location underground where the first rock splits. The epicenter of an earthquake is the location directly above the focus (at the ground surface).
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