Question

name any four major types of volcanic eruptions ​

Answer 1

Answer:

1. Cinder Cone Volcanoes: These are the simplest type of volcano. ...

1. Composite Volcanoes: Composite volcanoes, or stratovolcanoes make up some of theworld's most memorable mountains: Mount Rainier, Mount Fuji, and Mount Cotopaxi, for example. ...

1. Shield Volcanoes: ...

1. Lava Domes:

Answer 2

Answer:

There are three different types of eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that propels it forward.

Phreatomagmatic eruptions are another type of volcanic eruption, driven by the compression of gas within magma, the direct opposite of the process powering magmatic activity. The third eruptive type is the phreatic eruption, which is driven by the superheating of steam via contact with magma; these eruptive types often exhibit no magmatic release, instead causing the granulation of existing rock.

Within these wide-defining eruptive types are several subtypes. The weakest are Hawaiian and submarine, then Strombolian, followed by Vulcanian and Surtseyan. The stronger eruptive types are Pelean eruptions, followed by Plinian eruptions; the strongest eruptions are called "Ultra-Plinian." Subglacial and phreatic eruptions are defined by their eruptive mechanism, and vary in strength. An important measure of eruptive strength is Volcanic Explosivity Index (VEI), an order of magnitude scale ranging from 0 to 8 that often correlates to eruptive types.