refers to mountain or hill, typically conical, having a crater or vent in which lava, rock fragments, hot vapor, and gas are or have been erupted from the earth's crust.
Magma
lava and other volcanic materials originated from molten materials found beneath the surface of the Earth.
Volcanism
Any activity that includes the movement of magma towards or onto the surface
Volcanism
Study of Volcanoes
PHIVOLCS
Philippine Institute of Volcanology and Seismology
