Source: News on Air
Context: Mount Lewotobi Laki-laki in Indonesia erupted multiple times over the weekend and again on Monday, prompting the government to raise the alert level to the highest tier.
About Mount Lewotobi Laki-laki:
- What it is: A stratovolcano forming part of a twin volcanic system with Lewotobi Perempuan, often symbolised as a “husband-wife” pair.
- Located in: Southeast Flores Island, Indonesia; part of the Lesser Sunda Islands volcanic arc.
- Geological Features:
- Twin peaks: Laki-laki (more active) and Perempuan (less active).
- Formed due to subduction of the Indo-Australian Plate beneath the Eurasian Plate.
- Known for frequent eruptions, pyroclastic activity, and ash columns reaching over 5 km.
About Indonesia:
- Location: Archipelagic country in Southeast Asia; lies between the Indian Ocean and the Pacific Ocean.
- Capital: Jakarta (on the island of Java).
- Indonesia is relocating its capital from Jakarta to a new city called Nusantara.
- Borders: Shares land borders with Malaysia, Papua New Guinea, and Timor-Leste.
- Geological Features:
- Islands: Over 17,000 islands – major ones include Sumatra, Java, Borneo (Kalimantan), Sulawesi, New Guinea (Papua).
- Mountains/Volcanoes: Over 100 active volcanoes including Merapi, Agung, Sinabung, and Krakatoa; part of the Pacific Ring of Fire.
- Rivers:
- Longest: Kapuas (1,140 km) in Kalimantan.
- Others: Barito, Mahakam, Mamberamo.
- Tectonic Setting: Junction of Indo-Australian, Eurasian, and Pacific plates—making it one of the most seismically active regions globally.
