GEOLOGY

EARTH SCIENCE

VOLCANOES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How are volcanoes related to earthquakes?
A
Earthquakes are directly beneath volcanoes and the movement of magma puts pressure on the rock until it cracks.
B
when a volcano explodes the lava is hot and cracks the floor
C
all of the above
D
None of the above
Explanation: 

Detailed explanation-1: -Most earthquakes directly beneath a volcano are caused by the movement of magma. The magma exerts pressure on the rocks until it cracks the rock. Then the magma squirts into the crack and starts building pressure again. Every time the rock cracks it makes a small earthquake.

Detailed explanation-2: -Both volcanoes and earthquakes occur due to movement of the Earth’s tectonic plates. They are both caused by the heat and energy releasing from the Earth’s core. Earthquakes can trigger volcanic eruptions through severe movement of tectonic plates.

Detailed explanation-3: -Volcanically-caused long period earthquakes are produced by vibrations generated by the movement of magma or other fluids within the volcano. Pressure within the system increases and the surrounding rock fails, creating small earthquakes.

Detailed explanation-4: -Although there are several factors triggering a volcanic eruption, three predominate: the buoyancy of the magma, the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber.

Detailed explanation-5: -Volcanoes are the result of the release of hot magma from the earth’s deeper layers. Earthquakes can occur in any area of the world. Volcanoes take place at openings in the crust of the earth. Now that earthquakes occur in a random pattern, it is usually difficult to predict earthquakes.

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