Pyroclastic Flow - Fast turbulent mass of fragmental volcanic material mixed with hot gases that flows downslope at high speed, Lava Flow - The stream like flow of incandescent, molten rock erupted from a volcano., Ash Fall / Tephra Fall - Shower of fine-to-course grained volcanic material and other airborne products of a volcanic eruption. Dependent on prevailing wind direction., Lahar - Rapidly flowing thick mixture of volcanic material and water, usually generated along river channels or by extreme rainfall., Volcanic Gas - Gases released into the atmosphere through water vapor, hydrogen sulfide, sulfur dioxide, carbon monoxide, hydrogen chloride, and hydrogen flouride., Debris Avalanche / Volcanic Landslide - A massive collapse of a huge portion of a volcano, usually triggered by an earthquake or volcanic eruption., Secondary Explosions - Non-eruptive explosive events that are generated when groundwater comes into contact with still-hot pyroclastic flow deposits at the slope of a volcano an is converted to steam., Tsunami or Seiche - Waves or wave trains generated by sudden displacement of water during volcanic eruptions. These could also be generated during undersea eruptions or debris from avalanches.,

Volcanic Hazards

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