GEOLOGY

Detailed explanation-1: -Ground Shaking If an earthquake generates a large enough shaking intensity, built infrastructure, like buildings and dams, and lifelines, such as power and water networks, can be severely damaged. In large earthquakes, whole districts can be devastated by the multiple consequences of ground shaking.

Detailed explanation-2: -Ground shaking is the primary cause of earthquake damage to man-made structures.

Detailed explanation-3: -Any buildings in the path of these surface waves can lean or tip over from all the movement. The ground shaking may also cause landslides, mudslides, and avalanches on steeper hills or mountains, all of which can damage buildings and hurt people.

Detailed explanation-4: -S waves arrive next and cause a structure to vibrate from side to side. They are the most damaging waves, because buildings are more easily damaged from horizontal motion than from vertical motion.