InternationalTuesday, 8 September 2026·The Hindu - International
Indonesia’s volcanic geography and Ring of Fire: MCQ facts on Anak Krakatau, Semeru and active volcano counts
Indonesia’s 2026 eruptions highlight its 500 volcanoes, 127 active volcanoes, and the Pacific Ring of Fire geography.
Key highlights
Direct fact
In September 2026, Indonesia’s Mount Anak Krakatau and Mount Semeru drew attention to the country’s Pacific Ring of Fire setting, where 500 volcanoes include 127 active volcanoes and more than 270,000 people were affected by ash-related disruption.
Key specifics
- Indonesia has 500 volcanoes, of which 127 are active, according to its volcanology agency.
- The agency closely monitors 69 active volcanoes through 74 observation points.
- Five volcanoes are at the second-highest alert status: Anak Krakatau, Lewotobi Laki-laki, Merapi, Semeru and Sinabung.
- Anak Krakatau’s ash plume rose to 50,000 feet (15,240 metres) and spread up to 400 km.
- The 2018 Anak Krakatau eruption triggered a tsunami that killed more than 400 people, while the 1883 Krakatau eruption caused over 36,000 deaths.
Exam lens
Question type: geography and disaster management match-the-following, Indonesia, Pacific Ring of Fire, 500 volcanoes, 127 active volcanoes, 74 observation points, 2018 tsunami. TNPSC may ask which country has the highest number of active volcanoes.