GEOLOGY

Detailed explanation-1: -Explain to students that earthquake energy travels in the form of waves. These waves are called seismic or earthquake waves. There are different kinds of earthquake waves: body waves and surface waves. Body waves pass through the interior of the Earth whereas surface waves travel along the Earth’s surface.

Detailed explanation-2: -Body waves can travel through the Earth’s inner layers, but surface waves can only move along the surface of the planet like ripples on water. Earthquakes send out seismic energy as both body and surface waves. The body waves (P and S) and surface waves recorded by a seismometer.

Detailed explanation-3: -When an earthquake occurs, the elastic energy is released and sends out vibrations that travel in all directions throughout the Earth. These vibrations are called seismic waves. The point within the earth where the fault rupture starts is called the focus or hypocenter.

Detailed explanation-4: -The disturbance travels outward in all directions through the Earth, and is called a seismic wave. When a seismic wave reaches a building, it does work in moving the building vertically and horizontally. The seismic wave transfers energy from the point of origin of the earthquake to the building.

Detailed explanation-5: -Seismic waves are waves of low-frequency acoustic energy that travel through the earth’s layers, which may be generated by extreme geological or man-made activity such as an earthquake, volcanic eruption, or an explosion.