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EARTHQUAKE

Earthquake is the result of a sudden release of energy in Earth’s crust that creates seismic waves. Earthquake is also known as tremor. Earthquake is one of all the disasters in the world and one of the dangerous disasters. We said that it was dangerous because earthquake can also caused a tsunami, hurricane and the other disaster. The earthquake’s power is counted in Richter scale with an item that

Earthquake divided into 3 kinds. It was tectonic earthquake, volcanic earthquake and tecto-volcanic earthquake. Tectonic earthquake is an earthquake that happened because the tectonic plat that like a rubber was released so it makes an energy pressure and caused an earthquake. Volcanic earthquake is an earthquake that happened because of the volcanic activity. When the volcanic mountain blazed, it released a large amount of power that caused earthquake. People said it was the most dangerous earthquake because it isn’t only caused an earthquake but also an avalanche that produced after volcanic activity. Tecto-volcanic earthquake is a combination between tectonic earthquake and volcanic earthquake that caused an extraordinary earthquake. First, the tectonic plat released and makes an energy pressure, then the energy was released by tectonic activity and caused a large earthquake. The simple example of this earthquake is Toba lake and Batur lake. Those two lakes were produced by tecto-volcanic earthquake. This earthquake only happens in a mountain with valley near that mountain.

Earthquake has happened in many places with different power. There are earthquakes that happened until now.

Tasikmalaya’s earthquake with 7,3 Richter Scale on September 2, 2007

Bengkulu’s earthquake with 7,9 Richter Scale on September 12, 2007

West Sumatera’s earthquake on March 6, 2007 that caused 79 victims.

Yogyakarta’s earthquake on May 27, 2006 with 6,9 Richter Scale that caused 6000 victims