What are the steps to a volcano eruption?

Volcano eruptions go through several stages typically beginning with earthquake swarms and gas emissions, then moving to initial steam and ash venting, lava dome buildup, dome collapse, magmatic explosions, more dome growth interspersed with dome failures and finally, ash, lava and pyroclastic eruptions.

Where is the safest place to go during a volcano?

Avoid low-lying areas, areas downwind of the volcano, and river valleys downstream of the volcano. Debris and ash will be carried by wind and gravity. Stay in areas where you will not be further exposed to volcanic eruption hazards.

What happens inside a volcano before it erupts?

Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth’s mantle melts. As the magma rises, bubbles of gas form inside it. Runny magma erupts through openings or vents in the earth’s crust before flowing onto its surface as lava.

What are the 4 stages of a volcano?

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