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Different magma types behave differently as lava flows, depending on their temperature, viscosity, and gas content.

Pyroclastic Material If the magma has high gas content and high viscosity, the gas will expand in an explosive fashion and break the liquid into clots that fly through the air and cool along their path through the atmosphere.

(Note that the numbers of victims are not absolute, as they are different for every organization that describes the accident in books or on their websites.

Chernobyl: Russian nuclear power plant explosion 3. This event is now known as the worst industrial environmental disaster to ever have occurred.

These health problems killed around 15.000 more victims in the years that followed.

The gas leak killed at least 4.000 local residents instantly and caused health problems such as oedema for at least 50.000 to perhaps 500.000 people.

Only Mount Teide in Tenerife (owned by Spain) surpasses it in the whole of the European–North-African region.

In Greek Mythology, the deadly monster Typhon was trapped under this mountain by Zeus, the god of the sky and thunder and king of gods, and the forges of Hephaestus were said to also be located underneath it.

This makes it by far the largest of the three active volcanoes in Italy, being about two and a half times the height of the next largest, Mount Vesuvius.

Basaltic and later andesitic to dacitic flows of lava covered increasingly larger areas of this formation to eventually form the lava plateau that the park sits on.

About 600,000 years ago, Mount Tehama started to rise as a stratovolcano in the southwestern corner of the park, eventually reaching an estimated 11,000 ft (3,400 m) in height.

Thus, basaltic magmas tend to be fairly fluid (low viscosity), but their viscosity is still 10,000 to 100,0000 times more viscous than water.

Rhyolitic magmas tend to have even higher viscosity, ranging between 1 million and 100 million times more viscous than water.

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