Question

Which plate boundaries and movements most commonly create earthquakes? Explain how earthquakes can be created by plate tectonics.

Answer 1

Unique or damaging plate edges cause volcanoes. As the more thick plate subducts, it will dissolve at profundity and the water is driven off, will bring down the liquefying purpose of the overlying mantle wedge, this will make a kind of magma. Volcanic Island Arcs are framed at maritime dangerous plate edges. The hot, light magma, is less thick that the encompassing rock so will ascend to the surface, and will gather underneath the plate that hasn't been subducted. It will then, under expanded weight eject under the ocean. More than thousands of a great many years, it will continue emitting, to shape islands.

Answer 2

Answer:

Movement of convergent boundary, divergent boundary and transforming boundary causes earth quake.

Explanation:

As per the tectonic plate theory, there are three different plate boundaries namely – convergent boundary, divergent boundary and transforming boundary. When these tectonic boundaries relatively move against each other, then earth quake occurs.  

The tectonic plates are nothing but just large pieces of earth that move and crush into each other.  

These tectonic plates lie on the mantle of earth which acts as a fluid thereby enabling these tectonic plates to float. Convection current with in the mantle causes floating.  

Now the earthquake is caused at the plate boundaries –

Case I - When the two plates move towards each other, they collide and one plate slips below the other.

Case II - When the two plates move away from each other, volcanic activities accompanied by earth quake occurs here.