JAKARTA: The latest eruptions of Indonesia's Mount Anak Krakatau disrupted air travel, affecting more than 270,000 people, and underscored the threat posed by the Southeast Asian country's more than 100 active volcanoes - the highest number of any country in the world.
Here are key facts about volcanoes in Indonesia, a sprawling archipelago of over 17,000 islands that sits on the Pacific "Ring of Fire", resulting in frequent volcanic eruptions and earthquakes: