GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Earthquakes can occur with ____ faulting
A
normal
B
reverse
C
thrust
D
all of these
Explanation: 

Detailed explanation-1: -Earthquakes occur on faults-strike-slip earthquakes occur on strike-slip faults, normal earthquakes occur on normal faults, and thrust earthquakes occur on reverse or thrust faults. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other.

Detailed explanation-2: -Earthquakes occur along faults, which are fractures between blocks of rock that allow the blocks to move relative to one another. Faults are caused by the bumping and sliding that plates do and are more common near the edges of the plates.

Detailed explanation-3: -There are three basic types of fault: normal, reverse and strike-slip.

Detailed explanation-4: -Most faults in the Earth’s crust don’t move for a long time. But in some cases, the rock on either side of a fault slowly deforms over time due to tectonic forces. Earthquakes are usually caused when underground rock suddenly breaks and there is rapid motion along a fault.

Detailed explanation-5: -Most earthquakes occur at fault zones, where tectonic plates-giant rock slabs that make up the Earth’s upper layer-collide or slide against each other. These impacts are usually gradual and unnoticeable on the surface; however, immense stress can build up between plates.

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