Indonesia’s Mount Lewotobi Laki-laki Erupts, Alert Raised to Highest Level

Key Points:

• Date of Eruption: October 15, 2025
• Location: East Nusa Tenggara province, Indonesia
• Eruption Details: The volcano spewed volcanic ash up to 10 kilometres (6.21 miles) into the sky.
• Alert Status: Authorities have raised the alert level to its highest category following the eruption.
• Recent Activity:
  • Last erupted in August 2025.
  • Previous eruption in July 2025 caused flight disruptions to and from Bali.
• Geological Context:
  • Indonesia has over 120 active volcanoes.
  • The country lies on the Pacific “Ring of Fire”, a zone of intense seismic and volcanic activity caused by movements of multiple tectonic plates.