In the west are two volcanos, Sierra Grande and Capulin Mountain.
The discovery of volcanos on Jupiter's large satellite Io by the Voyager 1 spacecraft in 1979 briefly resurrected the idea, but Io's composition proved to be a very poor match to the composition of comets.
Food and rice are still offered to venerated volcanos on certain occasions.
The lake is bisected by a chain of volcanos which has led to the formation of numerous islands, the largest of which is Ometepe Island.
One of Japan's most active volcanos has erupted in spectacular fashion, shooting ash a mile into the air and sending lava rolling down its slopes.
Villarica, one of the continent's most active volcanos, standing at almost 3,000m, billowed ash and lava forcing the evacuation of many thousands of people.
Bordered by Ethiopia, Eritrea and Somalia, Africa's eighth smallest country sits on the Afar Triple Junction – meeting point for three of the Earth's tectonic plates – and the result is a fantasy landscape of volcanos, petrified forests, desert plains, salt lakes and pristine coral reefs squeezed into an area one-sixth the size of England.
Due to its population density and the fertile soils that volcanic slopes provide, hundreds of thousands of Indonesians live close to active volcanos.
Japan is on the so called "Ring of Fire" along the Earth's tectonic plates where earthquakes and volcanos are thought to be more common.
Calbuco, a 2,000m high volcano, last erupted in 1972 and is considered one of the three most dangerous of Chile's 90 active volcanos.
The coastal region is dotted with modern volcanos and older dissected volcanic piles of an extensive alkaline-basalt area (McMurdo Volcanics) consisting of Cape Adare, Cape Hallett, Mount Melbourne, Franklin and Ross islands, on the western coast, and a number of lesser-known centres in western Marie Byrd Land, on the eastern coast.
