EarthQuake


Earthquakes, is a phenomenon of movement of the earth's surface caused by movement on the surface of the rocky earth. Earthquakes happen when energy stored in the earth, usually in the form of a rock slide, was suddenly released.

The earthquake was measured by using a tool called the Richter Scale. Earthquakes are divided into two, namely tectonic earthquakes and volcanic earthquakes.

Tectonic earthquake

Tectonic earthquake caused by the release of the proceeds from the rock slide in the longitudinal cracks along the rocks plate tectonics. Power generated by the pressure between the rocks.


Volcanic earthquakes

Volcanic earthquakes occurred near the volcano, but has its way lengthwise cracks similar to tectonic earthquakes. Volcanic earthquakes are caused by upward movement of magma within the volcano, where the slide on the rocks produce earthquakes.

During magma moves to the surface of the volcano, he moves and breaking rocks. He caused a continual concussion that may last from several hours hinggalah few days.

Volcanic earthquakes occurred in areas adjacent to the volcano.

this video from youtube about earthquake