The intensity of Semeru's eruption is increasing, reaching its peak at the end of 2025. Various Semeru volcano facts are related to its activity. All of these facts serve as learning points for future disaster management.

Semeru volcano erupts with a mixed eruption type. Increased activity has been observed since the beginning of the year. Thousands of eruptions had been recorded across 2025 and caused various risks.

The Semeru eruption update reported that the eruption has continued until the end of December. This eruption also posed another hazard for residents in Semeru

A flash flood hit Guci Tegal on December 20. This flash flood significantly damaged the hot springs and had a profound impact on the local tourism industry.

As an active volcano, the activity of Semeru has actually increased since early 2025. Its peak activity always occurs at the end of the year. When did Semeru last erupt?