Earthquakes associated mainly with tectonic processes. During the year, the Earth is fixed approx. One million earthquakes. Allocate hypocenter and epicenter of the earthquake. They scattered in all directions seismic waves. Cells earthquakes are at depths of 30-60 km, and sometimes - to a depth of 700 km. ( землетрус)

Air inside the funnel is lowered, and the outside rises rapidly rotating, highly rarefied region creates air. The vacuum is so significant that the closed gas-filled objects, including buildings, can explode from the inside due to the pressure difference. This phenomenon increases the damage from the tornado, difficult to determine the parameters in it. ( смерч)