TEMPO.CO, Jakarta - Central Java volcano Merapi spewed incandescent lava several times on Tuesday night, January 29. According to the Research and Development Center of Geological Disaster Technology (BPPTKG) on its Twitter account, the incident occurred at 20:17, 20:56, and 21:41 local times caused rainy ash in several regions.
"As a result of a series of lava avalanches since 20:17 WIB (Western Indonesian Time), thin ash rains are reported falling in several villages in Musuk and Cepogo Subdistricts, Boyolali Regency, as well as Boyolali City #statuswaspada (#statusalert)," said BPPTKG at 23:03 WIB, Tuesday, January 29.
The institution earlier informed that the CCTV cameras recorded four-times lava avalanches towards Kali Gendol with a distance of 200 to 600 meters based on observation from 00:00 to 06:00 Western Indonesia Time (WIB).
From the observation at 06:00 to 12:00 WIB, the magmatic eruption occurred at 07:10 and 09:36 WIB, while from 12.00-18.00 WIB, the incident occurred twice at 17:12 and 17:52 WIB towards Kali Gendol with a sliding distance of 300-500 meters. Further at 20:17, lava avalanches moved to the upstream of Kali Gendol with a sliding distance of 1400 meters for 141 seconds.
BPPTKG announced the volcanic activity of Mount Merapi was on Alert Level 2 (Waspada). "People are encouraged to remain calm and be aware of the possibility of local volcanic ash rains," it noted.
RYAN DWIKY ANGGRIAWAN