GEOLOGY

Detailed explanation-1: -Earthquakes occur in the crust or upper mantle, which ranges from the earth’s surface to about 800 kilometers deep (about 500 miles).

Detailed explanation-2: -The Earth’s crust (the outer layer of the planet) is made up of several pieces called tectonic plates and most earthquakes occur along their edges.

Detailed explanation-3: -The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.

Detailed explanation-4: -Earthquakes are caused by shifts in the outer layers of Earth-a region called the lithosphere. The solid crust and top, stiff layer of the mantle make up a region called the lithosphere. The lithosphere isn’t a continuous piece that wraps around the whole Earth like an eggshell.

Detailed explanation-5: -Knowing how the waves behave as they move through different materials enables us to learn about the layers that make up the Earth. Seismic waves tell us that the Earth’s interior consists of a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core.