Earthquake causes a great disaster. It is a sudden movement of a part of the earth’s surface caused by the deep crack in the earth or by the volcanic eruption. Some regions of the earth are prone to an earthquake while others are comparatively safe from this natural disaster. Some countries like Japan, Iran etc. are frequently hit by an earthquake. Houses and bridges in these countries are built shock-proof. Forecast regarding the occurrence of an earthquake is not possible. A severe earthquake causes widespread destruction of houses and properties. People are crushed under the broken houses. Often several quakes hit a place at short intervals. So after a quake people live in tents on the open field. When a severe quake hits a populous city thousands of people are killed and injured. Many people are trapped in the broken houses and it takes days to rescue them. The only way to get rid of the ravage of this natural disaster is to build houses, bridges, and roads in such a way that they can resist the tremors.