Kinds
of Earthquake
Earthquake often
happens around us. It brings great damages. Earthquake is hard to be predicted
and that makes lot victims.
Actually there are three kinds of earthquake. This kinds of earthquake are commonly
base on
the factor and geological area where the earthquakes happen. These three kinds
of earthquake are tectonic, volcanic and explosion.
Tectonic earthquake is the most common one. This kind of earthquake happens
while
earth's crust rocks break because of the geological strength created by moving
of the earth's plates.
Volcanic earthquake happens exactly with volcanic activity. Volcanic earthquake is
the
volcano produces acidic lava, which drys quickly, when it drys quickly it
blocks the top of the volcano. This make no more magma can escape. Pressure
starts to build up and eventually the acidic lava can no longer stand the
pressure. So the volcano is free to explode, the pressure is released so fast
than an earthquake is caused. A volcanic earthquake is usually kept within
10-20 miles of the volcano.
Explosion earthquake is the result
of the collapse earthquakes that is small earthquakes occurring in underground
mines and coverns.
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