What are the benefits and hazards associated with volcanoes?

BENEFITS AND HAZARDS ASSOCIATED WITH VOLCANOES

BENEFITS

·         Important for forming ore deposits

·         Generates fertile soil upon weathering of volcanic rocks.

·         Volcanic outgassing provided the essential elements of the earth atmosphere.

·         Geothermal energy

·         Tourism

HAZARDS

·         Larva flows incinerate and bury nearly everything in their path.

·         Pyroclastics- hot materials type of pyroclastic flow is called new ardent, a mixture at speeds that can exceed one hundred miles per hour.

·         Creating massive mud flows that can bury entire towns. Travels quickly down slopes.

·         Rlease of toxic gases.

·         Phreatic eruption-steam explosion due to contact of groundwater with hot magma.

·         Landslides or debris flow can be triggered by earthquake eruptions.

·         Climatic effects-injection of sulphur compounds into stratosphere causes measurable global cooling.

·         Tsunami –destructive ocean wave generated by underwater eruptions.