Although each volcano is unique, there are four main types of volcanoes, based on shape: shield, cinder cone, composite, and lava cone.
Hawaii’s Mauna Loa is a typical shield volcano. Paricutin, in Mexico, exemplifies a cinder cone volcano. The image of a volcano most of us carry around in our minds is a composite type, such as Mount Fuji in Japan.
And California’s Lassen Peak typifies the gentler lava cone volcano.