Definition
A volcanic eruption. A natural disaster is a serious one. Volcanic activity that demonstrates that the surface of our planet to some degree. The very hot, especially the so-called "hot spots" at the molten rock called magma and when it was sprayed on the surface or crater is called lava.
The causes of volcanic eruptions.The eruption of the mountain, it is not clear to understand. Geologists estimate that there are a lot of heat build-up of the magma, steam and gas have accumulated a lot more. This causes a pressure high temperature at one point it will blow out. The violence of the explosion. Depending on the severity of the explosion. Also depends on the pressure of the steam. The viscosity of the lava. If too thick lava. Rate the severity of the explosion is very strong as well. The volcanic eruption. But not only the lava flows. The gas condensation. Ash, dust and smoke is coming out with a roll down. The steam condenses into water. Remove dust and ash. Falling together. Runoff into the mud flood in the lower foothills. Even if the volcano was covered in snow. It will melt the snow. Mud as many as in the case of a disaster that occurred in Colombia recently. Source: Faculty Faculty of Science Encyclopedia of Science .2534.
