Some of the effects that earthquakes have on people include structural damage and injuries. There is also a risk of death associated with earthquakes.
The seismic waves of an earthquake can cause shaking. The stronger the quake, the more intense the shaking. As the ground shakes, it can cause buildings and homes to shake. This in turn can cause items to fall, walls or roofs to begin falling or the entire structure to collapse. This effects people emotionally and economically. As this structural damages occurs, it can cause injuries or death if something falls on a person, hits a person or traps them under debris.Learn More
The type of stress placed on a normal fault is tensional stress. In normal faulting, tensional stress gradually weakens the Earth's crust until the rock cracks, with one crustal block moving downwards relative to its adjacent fault block.Full Answer >
According to the Southern California Earthquake Center (SCEC), the difference between an earthquake, also known as the mainshock, and an aftershock is that an aftershock follows closely in the wake of a larger earthquake and in approximately the same area as that earthquake. Earthquakes are usually more powerful and longer lasting than aftershocks. An aftershock will not occur unless there is a mainshock that occurs first.Full Answer >
Earthquakes happen when rock beneath the earth suddenly moves. Stresses in the earth make blocks of rock break and move along a fault line, which is a crack in the earth. The rocks may move, slip downward, upward or sideways. Many earthquakes take place on the edge of the seas. As of 2014, earthquakes can't be prevented but can be somewhat predicted.Full Answer >
As of 2014, estimates suggest that over 500,000 earthquakes occur each year, and 100,000 of these are strong enough to be felt by humans. Since 1900, there has been a global average of 18 major earthquakes, and one giant earthquake, each year.Full Answer >