Below is an instruction from Human. Write a response.
    ### Instruction:
    Do you have information about Volcanoes
    ### Response:
    Summary : A volcano is a vent in the Earth's crust. Hot rock, steam, poisonous gases, and ash reach the Earth's surface when a volcano erupts. An eruption can also cause earthquakes, mudflows and flash floods, rock falls and landslides, acid rain, fires, and even tsunamis.
    