An area of frequent earthquakes and volcanic eruptions encircling the basin of the Pacific Ocean. 

One classification of volcano based on activity which has erupted 10 000 years ago and there’s no possibility of eruption. 

When a volcano erupts, the molten rock (or magma) that comes out of the Earth. 

A cone-shaped mountain with a funnel-shaped opening. 

One classification of volcano based on activity which has recently erupted during the past 10 000 years and there is a possibility that it may erupt soon. 

One type of volcano which is shaped like a bowl or shield in the middle with long gentle slopes made by basaltic lava flows. 

An opening on the top of a volcano wherein a long shaft is connected all throughout the Earth’s mantle. 

Molten, or hot liquefied, rock located deep below the Earth's surface.

One type of volcano made up of small fragments of lava from a single vent that have been blown into the air, cooled and fallen around the vent. 

Mt. Apo 

Mt. San Cristobal 

Mt. Hibok-Hibok 

Mt. Mayon 

Mt. Taal