Environmental
Mount Semeru volcanic eruption spews ash in East Java
Mount Semeru in East Java erupted again on March 25, 2026, releasing an ash column up to 1,500 meters high and triggering local evacuations and air‑quality warnings.
Indonesia’s Mount Semeru in East Java erupted again on Wednesday, March 25, 2026, sending a towering ash column about 1,500 meters into the atmosphere. The eruption forced the evacuation of nearby settlements and prompted local authorities to issue ash‑fall and respiratory‑health advisories. Volcanic activity at Semeru has been ongoing, but the latest outburst disrupted traffic and outdoor activities in surrounding districts. Monitoring agencies warn of continued explosive activity and potential secondary hazards such as lahars in river valleys downstream. The event underlines persistent volcanic and environmental risks in Indonesia’s densely populated Java region.
- Status
- active
- Location
- Mount Semeru, East Java, Indonesia
- Date added
- 2026-03-25 21:33 UTC
- Last updated
- 2026-03-25 21:33 UTC
- Source
- Databoks Katadata
- Connected threats
- Not provided