Boiler volcanoes are the most violent. Water is sometimes trapped in the porous rock of a volcano, and when the water gets hot enough, it turns to steam and creates enormous pressure.
the worst volcanoes are usually in japan because it is right on the edge of two plate edges. hope this is the answer you wanted :)
Only the most violent volcanic eruptions feature a pyroclastic flow.
i
plinian
The most violent volcanic eruptions are found in destructive/convergent plate boundaries. 80% of the world's active volcanoes are found occur along destructive boundaries. Acid-lava and composite volcanoes also cause the most violent eruptions as the lava is viscous and the opening of the volcano is sometimes blocked by hardened lava, causing a huge massive explosion during the eruption.
The most violent volcanic explosions are usually generated from composite volcanoes and andesitic lava flows. These types of eruptions can throw lava and other debris several miles into the atmosphere.
the worst volcanoes are usually in japan because it is right on the edge of two plate edges. hope this is the answer you wanted :)
Only the most violent volcanic eruptions feature a pyroclastic flow.
Pelean
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Pelean
Krakatoa or Krakatau in Indonesia.The best-known eruption of Krakatoa culminated in a series of massive explosions on August 26-27, 1883, which was among the most violent volcanic events in modern and recorded history.
plinian
The most violent volcanic eruptions are found in destructive/convergent plate boundaries. 80% of the world's active volcanoes are found occur along destructive boundaries. Acid-lava and composite volcanoes also cause the most violent eruptions as the lava is viscous and the opening of the volcano is sometimes blocked by hardened lava, causing a huge massive explosion during the eruption.
The eruption of Mount Mazama that formed Crater Lake was a caldera forming eruption. This is the most violent type of volcanic eruption.
Volcanic gases also destroy ozone. Mt. Pinatubo was one of the most violent eruptions that caused ozone depletion.
Both the Pelean and Plinian eruptions are violent, and the Plinian (such as Vesuvius) are the most spectacular type. More specifically, there is a designation "ultra-Plinian" to describe highly explosive eruptions such as Kratatoa. The type of eruption that is most violent is when lava, ash and other materials are hurled into the air.