Predictions saved lives from Mount Pinatubo’s volcanic eruption, but it didn’t save the ozone layer.

Volcanic eruptions are generally very bad, and they generally cause massive death tolls up into 100,000 – furthermore, they make people sad verging on depressed because of the trauma it causes. However, on the island, Luzon, in the Philippines, they proved an eruption doesn’t have to be a catalyst for a death toll.

On this day June 11th, in 1991, Mount Pinatubo erupted. Due to a 7.7 magnitude earthquake in 1990 and a chain of earthquakes in 1991, scientists decided to put in monitoring devices around Mount Pinatubo somewhere between April 2nd and May 13th in 1991. It took some convincing, but eventually scientists with the help of the U.S. Geological Survey were able to get the inhabitants to evacuate the area.

A day later on June 12th the beginning of the eruption would occur. A totally of 847 died from the volcano, but this was also because of the typhoon that arrived as well which made the ash wet and therefore incredibly heavy, and it collapsed roofs. The eruption released enormous amounts of aerosols and sulfur dioxide, which are bad for the stratosphere and surrounding environment. It had a detrimental impact on the ozone layer and satellites measured that year that a hole in the ozone layer over Antarctica had grown drastically.