Mount Merapi Vomits 12 Lava Falls As Far As 1,700 Meters

YOGYAKARTA - Mount Merapi, which is located on the border of the Special Region of Yogyakarta and Central Java, has again shown an increase in volcanic activity. Based on a report from the Geological Disaster Technology Research and Development Center (BPPTKG), during the observation period on April 2, 2025 at 00.00 to 06.00 WIB, Mount Merapi was recorded 12 times vomiting out incandescent lava.

"The 12 lava avalanches of Mount Merapi have been observed to the southwest, namely to Kali Krasak and Bebeng, with a maximum sliding distance of 1,700 meters," said Head of BPPTKG Agus Budi Santoso in his official statement, Wednesday, April 2.

Gempatan reports show an increase in volcanic activity, including 41 avalanches with an amplitude of 2 mm to 6 mm (38.31 seconds to 169.27 seconds), 48 times a hybrid earthquake or multi-phase with an amplitude of 2 mm to 8 mm (8.94 seconds to 13.82 seconds), and two distant tectonic earthquakes with an amplitude of 2 mm to 6 mm (32.68 seconds to 93.28 seconds).

Currently, the status of Mount Merapi is still at level III or alert. BPPTKG urges the public not to move within the danger zone, which includes the south-southwest sector (Bong River with a maximum radius of 5 km, as well as the Bedog, Krasak, and Bebeng rivers as far as 7 km), and the southeast sector (Woro River with a maximum of 3 km and Gendol River with a maximum of 5 km).

In addition to lava avalanches, the public is also asked to be aware of the potential for hot clouds of avalanches (APG) and lahars, especially when it rains around Mount Merapi.

The impact of volcanic ash also needs to be anticipated. If there is a significant change in volcanic activity, BPPTKG will immediately re-evaluate Merapi's status.