Joko Laksono, Boyolali – Mount Merapi, situated on the border between Central Java and the Special Region of Yogyakarta (DIY), released 18 pyroclastic flows early this morning, moving southwest towards Bebeng River with a maximum runout distance of 1,800 meters.

The pyroclastic flows began at 6:00 a.m. local time, leading authorities to maintain the volcano at Level 3 (Alert). This level indicates significant unrest, with increased activity that could lead to an eruption or ongoing moderate eruptions. While it doesn't imply an imminent large-scale eruption, the situation is serious and requires vigilance from both authorities and the public.

The Center for Research and Development of Geological Disaster Technology (BPPTKG) has issued a recommendation that the current hazard potential includes lava avalanches and pyroclastic flows in the southern-southwestern sector, which covers the Boyong River up to 5 km, and the Bedog, Krasak, and Bebeng Rivers up to 7 km.

In the southeastern sector, the Woro River is at risk within a 3 km radius, and the Gendol River within 5 km. Additionally, volcanic material from an explosive eruption could be projected up to 3 km from the summit.

According to BPPTKG, monitoring data indicates that the magma supply is ongoing, which could trigger further pyroclastic flows within the hazard zones.

Residents are advised to avoid any activities within these hazardous areas.

BPPTKG officer Alzwar Nurmanaji has urged residents in Sleman, Magelang, Boyolali, and Klaten to be prepared for disruptions caused by volcanic ash from Mount Merapi's eruption. If there is any significant change in volcanic activity, Merapi's alert level will be reassessed promptly.

Source: https://jakartaglobe.id/news/merapi-on-level-3-alert-after-18-pyroclastic-flows-erup