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Whether a volcano is about to erupt does not strictly depend on temperature, and not all eruptions are explosive. The temperature of the erupted material erupted. Silica-rich magma is typically around 1200 to 1300 degrees Fahrenheit when it erupts while silica-poor magma is usually around 2100 degrees. Pressure and the presense of a path to the surface are bigger factors in a volcanic eruption than temperature is.

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12y ago

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