Earthquake - the underground vibrations or shocks, arising
from the shift of the crust or upper mantle.
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Among all natural disasters, according to UNESCO, earthquakes
rank first in the world inflicted economic damage and
number of victims.
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The occurrence of earthquakes The occurrence of earthquakes associated
mainly with tectonic processes. In the course of the
year on the Earth is fixed separately. 1 million earthquakes. Allocate hypocenter and the epicenter of the earthquake. From them in all parties diverge seismic waves.
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Сlassification Depending on the cause and location