Mount+Pinatubo,+Philippines,+1991+(304)

//**__ Nature of eruption/Materials produced in eruption __**//

The effects of the eruption were felt worldwide. It ejected roughly 10 billion metric tonnes (10 cubic kilometres) of magma, and 20 million tons of Sulfur Dioxide, bringing vast quantities of minerals and metals to the surface environment. It injected large amounts of aerosols into the stratosphere, more than any eruption since that of Krakatoa in 1883. Over the following months, the aerosols formed a global layer of sulfuric acid haze. Global temperatures dropped by about 0.5 °C and ozone depletion temporarily increased substantially.

//**__ Human response (before and after) __**//

//**__ No. of casualties/Main cause of casualty __**// __Depends on varied accounts, 200-800 people were death in the eruption. The casualty was mainly caused by the collapsing of buldings.

//** Terms that might need explanation **//__ A ** pyroclastic flow ** (also known scientifically as a ** pyroclastic density current **) is a common and devastating result of certain explosive [|volcanic eruptions] A ** lahar ** is a type of [|mudflow] or [|landslide] composed of [|pyroclastic] material and [|water] that flows down from a [|volcano], typically along a [|river] [|valley]