TEMPO.CO, Jakarta - Mount Semeru in East Java erupted three times on Thursday, August 21, 2025. The Geological Agency of the Ministry of Energy and Mineral Resources reported a surge in volcanic ...

Mount Semeru, located on the border of Lumajang and Malang Districts in East Java, Indonesia, spewed another eruption with an ash column reaching 800 metres into the sky on Wednesday morning.

Semeru, also known as Mahameru, has erupted many times in the last 200 years. Still, as on many of the 129 volcanoes monitored in Indonesia, tens of thousands of people live on its fertile slopes.

Semeru, also known as Mahameru, has erupted many times over the last couple centuries, but just like many of the other 128 active volcanoes that are monitored across Indonesia, its fertile slopes ...

Climbing to these mountains is closed for various reasons on Indonesia's Independence Day, from ecosystem recovery to ...

Semeru’s last major eruption was in December 2021, when it blew up with a fury that left 51 people dead in villages that were buried in layers of mud. Several hundred others suffered serious ...

The 3,676-metre volcano erupted at 2.46pm local time on Sunday (0746GMT). Footage shot by local residents showed Mt. Semeru spewing a giant cloud of grey ash high above its crater, which later ...