Question

How can volcanic eruption lead to earthquakes?

Answer 1

Hint: It is a special class of tectonic earthquakes that are only confined to the regions of active volcanoes. This tectonic earthquake is caused by the movement of the magma.

Complete answer: A vent or opening in the earth’s crust through which molten material erupts suddenly is known as a volcanic eruption. In other words, it can be said that it is a place where the ashes, gases, and molten rock material or lava escape to the ground is known as Volcano.

A natural event when the earth shakes is known as an earthquake. An earthquake generates waves that travel in all directions.

Earthquakes take place when the release of energy occurs along a fault. A fault is an intense break in the crustal rocks. Rocks along a fault tend to change their position and move in opposite directions, the friction locks the rock together but after some time, the rocks overcome the friction. Due to this, energy is released and the point where the energy is released is known as the focus of an earthquake.

There are various types of earthquakes and one significant type of earthquake is known as a volcanic earthquake. It is a special class of tectonic earthquakes. Volcanic earthquakes are only confined to the regions of active volcanoes.
The movement of magma causes this type of earthquake. The pressure is exerted by the magma on the rocks until it cracks the rock, a pressure is built by the magma when it flows into the crack. A small earthquake takes place whenever the magma cracks the rock.

Note: It is almost impossible to detect or record an earthquake on sensitive devices. Harmonic tremors are recorded when the magma flows through the rocks, but these tremors are not felt.