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A '''volcanic eruption''' is the ejection of lava, steam, ash, heated gases, mud, and other rock fragments at the [[earth]]'s surface through the action of subterranean [[magma]].

<includeonly>A '''volcanic eruption''' is the ejection of lava, steam, ash, heated gases, mud, and other rock fragments at the [[earth]]'s surface through the action of subterranean [[magma]].

Eruptions may range from being violent and explosive to being slow and continuous.  The nature of the eruption often depends on the type of lava associated with the eruption.  

Eruptions may range from being violent and explosive to being slow and continuous.  The nature of the eruption often depends on the type of lava associated with the eruption.