Frequently asked questions about volcanoes

Volcanoes: general questions

• What is a volcano?
• Where are the most active volcanoes?
• Why are volcanoes called active even when there is no eruption?
• How do you know when a volcano is not going to erupt anymore?
• How would you find out if a volcano was going to explode?
• How dangerous are volcanoes?

Volcanic features:

• What are volcanic rocks?
• What are fumaroles?
• What are the relationships between geysers and volcanoes?

Volcanoes: facts and figures

• How many volcanoes are there in the world
• How many volcanoes can erupt at once?
• Which is the world's largest volcano?
• Which is the world's highest volcano?
• Which was the world's biggest eruption?
• Which is the most dangerous volcano?

Science of volcanology

• How did you become a volcanologist?

• Send us your question about volcanoes!