Somma volcano

A somma volcano, also known as a sommian, is a volcanic caldera that has been partially filled by a new central cone. The type is named after Mount Somma ("Summit"), a stratovolcano in southern Italy with a summit caldera in which the upper cone of Mount Vesuvius has grown. Other examples of somma volcanoes can be found on Russia's Kamchatka Peninsula and the Kuril Islands, stretching south from Kamchatka to Hokkaidō, Japan.

For other uses, see Somma (disambiguation).
Aerial view of Fogo Island, Cape Verde, an example of a somma volcano. The volcanic cone Pico do Fogo rises 100 m above the walls of the caldera.

Some examples of somma volcanoes are the following:

See also
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