geo natural hazards

• rockfall is when rocks fall from cliffs or steep slopes due to gravity, weathering, erosion, earthquakes, volcanic activity, or human activities such as mining.
• debris flow occurs when water saturates loose sediment on hillsides causing it to move rapidly downhill.
• landslide is the movement of rock, debris, or earth down a slope
• avalanche is a rapid mass movement of snow down a mountain
• lahar is a mudflow that can occur during volcanic eruptions