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A volcano is a mountain or hill, typically conical, having a vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth's crust. Signs of unrest such as unusual earthquake activity or significant new gas emissions are signs that a volcano is active. Scientists define an ‘active volcano’ as one that has erupted in the last 10,000 years.
There are more than 1,500 volcanoes that could be active, 75% of which are located along the evocatively-named Pacific Ring of Fire. The Pacific "Ring of Fire" is an arc around the Pacific Ocean where there are 400+ volcanoes.
Planet Venus has more volcanoes than Earth. Some may be active.
Kīlauea in Hawaii is currently the world’s most active volcano, followed by Etna in Italy and Piton de la Fournaise on La Réunion.
LIST OF MOST ACTIVE VOLCANOES IN THE WORLD
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- Barren Island in the Andaman and Nicobar Islands of India
- Erta Ale Fuego, Guatemala
- Heard Island and McDonald Islands in Antarctica
- Kilauea, Loihi in Hawaii
- Lakagigar in Iceland
- La Palma in the Canary Islands
- Mount Erebus in Antarctica
- Mount Etna in Italy
- Stromboli in Italy
- Nisyros in Greece
- Soufrière Hills on the Caribbean island of Montserrat
- Teide in Spain (Canary Islands)
- Vesuvius in Italy
A complex volcano, also called a compound volcano, is defined as one that doesn't have just one main vent or cone but several eruption points.
Taal volcano, Philippines and Mount Vesuvius in Italy are a good example of compound or complex volcanoes.
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