Geologic Hazards

SHAKING OF THE GROUND

the process of making something, especially a gas, liquid:

A tsunami is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake.

Tephra is the name for the fragmental materials produced by volcanic eruptions, such as ash, lapilli and volcanic bombs

fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano

a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water.

an overflow of water (or rarely other fluids) that submerges land that is usually dry.

is a circular, mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano

Also known as landslips, or rockslides, are several forms of mass wasting that may include a wide range of ground movements, such as rockfalls, mudflows, shallow or deep-seated slope failures and debris flows.A