Eruption-types

Eruption types 

   Volcanoes can erpups with massive force, a small explosion, or even just a even just a steady dribble. The way euch volcanos erupts depands on how thick its magma is and how much gas is in the magma. In a gas-rich magma, violent expansion of bubbles can shatter the magma and project volcanic ash into the sky with huge force, creating an ash cloud. More gentle eruptions feed lava fiows that ooze slowing down the side of the volcano. Strombolian: short and explosive eruption that creates shower of cinder and lava bomb. Hawaiian: usully mild eruptions that create fountains and streams of runny lava. Fissure or lcelandic: these are quiet, without loud explosion. They happen along long cracks in the ground.

 Ash columns 

    When volcanoes erupt, they can create tall columns of ash. The height of these columns varies, depending on the amount of energy in the eruption, and how much magma is thrown out. The most energetic phase of a major volcanic eruption can last for many hours. How high ?Columns height is one way of estimating how explosive a volcanic eruption types have different names and correspond to different grades of the volcanic explosivity index.

Volcanic fallout

     If there is wind a volcanic ash cloud will be blown to one side of the volcano, so that ash from the cloud falls to the ground in a belt that can extend hundreds of kms away the volcanash . Although it is cold by the time it reaches the ground, ash fallout can strip the leaves the from plants, and is dangerous to inhale. Aircraft must avoid flying through airborne ash, because it can clog up their engines.what falls where? The large fragments created in an eruption, such as bombs and cinder, fall closest to the volcano. Fine ash travels the furthest.