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Volcano Learning Zone > Types of volcanic eruption > Vulcanian

Vulcano crater LKPVulcanian volcanic eruptions are noisy and dramatic and are named after Vulcano in the Aeolian Islands. A phreatomagmatic (steam and lava) eruption occurs first, then a black explosive cloud as the volcano vent is cleared then a final whiter column of ash and gas. Lava bombs are not rounded and are typically made of viscous andesite and dacite which could explain their ragged shapes. A final viscous lava effusion may occur. Stromboli and Soufriere Hills have both shown this eruption style.