Epicenter

Speaking on the floor of many environmental events and disasters, when these events occur due to natural factors related to the mass of the crust, such as earthquakes, volcanoes and other geological events and facts, achieves earthquake as a vibration in the crust of the earth, there comes the earthquake usually by one to two main steps reflections of vibration and phase or seismic stage Alaratdadt, which is usually a major threat to the lives of people, earthquake center, which comes from the earthquake center called or what is known scientifically seismic term focus. Measured the intensity of the earthquake and global Richter magnitude scale, this measure depends on the digital calibrator expressed by dividing the intensity of the earthquake, which Valzlzal magnitude degrees to four degrees is weak earthquake not done damage, but the earthquake, ranging from a magnitude of between four and six degrees is the type average with light damage, while longer-magnitude earthquake, which varies between seven and ten degrees on Richter scale earthquake of this intensity is very strong for this earthquake can wipe the area who beat her in droves.

Earthquakes occur when the vibration of the layer of the Earth's crust, resulting in numerous waves of up to six waves, two of them Vtdharb the inner part of the Earth, while the other waves affect the surface Earth and divide other waves for the first waves and secondary waves. Alinvjarat volcanic be a major cause of earthquakes, and more Alsdoat that cause the so-called tectonic earthquakes. Earthquake in the surface of the Earth is created in a known seismic Balbarh region, which is expanding, including the earthquake in all directions around this development, so that these waves and monitors vibration on what is known of the monitoring of earthquakes, no seismic monitoring station can determine the direction of the seismic, but cooperates three seismic monitoring stations to locate the seismic focus, identifying all after the earthquake monitoring station alone, draw circles around these stations and then determine seismic object Select the intersection of these departments as well as the region. Should not be tolerated in the treatment of earthquakes, very dangerous Valzlzal can cause disasters do not rent the end, so you have to act very carefully and as soon as appropriate to try to minimize the expected damage Kaelloukov far fragile fragile items like glass or flammable and Gbrha materials, and stay away as much as possible from the midwife to fall because of the things vibration, and do not use elevators, and sitting under tables or doors in case the person is inside a building, stay away from electricity and separated, and many other of the many things you should be careful when earthquakes .