USGS Science Topics > Specific things by name
Active volcano located on the Philippine island of Luzon. Erupted violently in 1991.
Explore these categories:
Landmasses that project conspicuously above their surroundings. [USGS Circ 1048]
Vents in the surface of the Earth through which magma and associated gases erupt; also, the forms or structures, usually conical, that are produced by the erupted material. [Glossary of Geology, 4th ed.]
Episodes during which gases, ash, and lava (molten rock) escape from vents in the earth's crust, accompanied by minor tremors.