Earthquake

Earthquakes are caused due to the movement of magnum or tectonic plates under the Earth’s surface. They may vary in severity, time and other factors. Earthquakes have been classified into various categories. The effect they cause varies based on their type.

There are different types of earthquakes that have been experienced on our planet. Here is a look at the main types of earthquakes:

A tectonic earthquake is an outcome of the breakage of Earth’s crust because of exertion of pressure on rocks and tectonic plates.

This is often a mild earthquake that takes place in the same area that has been hit by a severe earthquake few hours, days or weeks before.

A small earthquake that takes place before a severe earthquake is referred to as a foreshock.

This type of earthquake occurs because of explosion of a chemical and nuclear device.

It is an earthquake that occurs due to the combination of tectonic forces and volcanic activities.

This type of earthquake is caused due to the explosion of rocks. These are generally mild earthquakes that occur due to mining activities.

It is an earthquake that takes place underwater particularly at the bottom of an ocean. It is commonly referred to as Tsunami.

An earthquake basically is an outcome of the movements of tectonic plates beneath the Earth’s surface. However, these are also caused due to certain other reasons. These are mostly natural reasons however sometimes these can even be man-made.

Given below are the various causes of earthquakes:

Volcanic eruptions are a common cause of earthquake. Areas that are faced with frequent volcanic activities are more prone to earthquakes.

It occurs because of the displacement of plates from their original position. As the rocks move alongside these planes, it brings about tectonic earthquakes.

Man is known to influence various natural activities and earthquakes are no exception. Nuclear bombing, building of dams and mining are few such human activities that can cause earthquake.

Mild earthquakes are harmless however the violent ones can cause mass destruction. Numerous lives are lost, several people are injured and many houses and other buildings are devastated during this natural calamity.

Earthquake is a dangerous natural calamity that has caused huge damage in various parts of the world. It cannot be avoided as the scientists are not able to predict its occurrence accurately.