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No. Dissolved gasses trapped under pressure provide the force.
about 2 million tonnes of pressure
Like a saucepan of boiling water that suddenly bubbles out from under the lid, a volcanic eruption is due to too much heat and pressure from below.
Pressure and magma
It's eruption.
you find the heat and pressure of the radiation of the volcano.
Pressure underneath the skin of the volcano called plasma.
No. Dissolved gasses trapped under pressure provide the force.
An eruption column consists of hot volcanic ash emitted during an explosive volcanic eruption. An explosive eruption always begins with some form of blockage in the crater of a volcano When magma flows towards the surface pressure builds, eventually causing the blockage to be blasted out in an explosive eruption. The pressure from the magma and gases are released through the weakest point in the cone, usually the crater. The sudden release of pressure causes the gases in the magma to suddenly froth and create volcanic ash and pumice, which is then ejected through the volcanic vent to create the signature eruption column commonly associated with explosive eruptions.
Yes. Krakatoa was a volcano. Therefore the eruption of Kraktoa was a volcanic eruption.
A volcanic eruption starts with the build up of pressure in the magma chamber. A bulge in the crater may indicate a impending eruption. Earthquakes may also precede an eruption.