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Earthquake
Earthquake is a sudden releases of energy in the Earth’s crust, causing ground shaking.
Mass Movements
Mass movements refer to the downslope movement of soil, rock, or debris under the influence of gravity.
Volcanoe
A volcano is an opening in the Earth's crust through which molten rock (lava), ashes and gases trapped under the surface erupt, often forming a hill or mountain. Volcanoes form when magma from magma chambers within the Earth’s mantle reaches the surface.