VolcanoWhat is it? The word "volcano" is used to refer to the opening from which molten rock and gas issue from Earth's interior onto the surface, and also to the cone, hill, or mountain built up around the opening by the eruptive products..(NOAA) Learn more. Prepare For Families and Individuals For Business For Practitioners, Clinicians and Responders | | Respond Evacuate Seeking Assistance Recovery Traumatic Events and Mental Health |
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