logo

Video encyclopedia

Phreatic eruption

3:33

What is a Phreatic Eruption? Volcano Fast Facts [Volcanic Types of Eruption]

2:00

Phreatic eruptions at Poás volcano, Costa Rica

1:46

Taal Eruption 2020: What is a phreatic eruption?

2:33

Phreatic eruptions from Krakatau's Crater Lake

2:50

What is PHREATIC ERUPTION? What does PHREATIC ERUPTION mean? PHREATIC ERUPTION meaning & explanation

A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption, occurs when magma heats ground or surface water. The extreme temperature of the magma causes near-instantaneous evaporation to steam, resulting in an explosion of steam, water, ash, rock, and volcanic bombs. At Mount St. Helens, hundreds of steam explosions preceded a 1980 plinian eruption of the volcano. A less intense geothermal event may result in a mud volcano.
    Explore contextually related video stories in a new eye-catching way. Try Combster now!