Head of the Geological Disaster Technology Research and Development Center (BPPTKG) Hanik Humaida noted in her official statement here on Friday that during the first observation, the hot clouds billowed at 4:13 a.m. and 4:28 a.m. local time as far as 900 meters to the southwest.
"It was recorded on the seismogram, with a maximum amplitude of 15 mm and a maximum duration of 84 seconds," she remarked.
Mount Merapi again released hot clouds as far as 1,500 meters to the southwest at 5 a.m. local time, with a maximum amplitude of 35 mm and a duration of 142 seconds.
During the observation period on Friday from 00:00 to 6 a.m. local time, Mount Merapi also reportedly emitted lava 16 times as far as 700 meters to the southwest.
During that period, the BPPTKG also recorded on three instances, earthquakes with hot clouds at an amplitude of 15-35 mm for 67-142 seconds, another 39 times earthquakes to have occurred with an amplitude of 3-28 mm for 17-66 seconds, and one gust earthquake, with an amplitude of 7 mm for 16 seconds.
Until now, the center continues to maintain the status of Mount Merapi at Level III or alert.
The lava and hot clouds of Mount Merapi are forecast to impact areas comprising Sungai Kuning, Boyong, Bedog, Krasak, Bebeng, and Putih in the south to the southwest.
In the meantime, Mount Merapi's volcanic material could disperse as far as three kilometers from the mountain's peak. Related news: Mount Merapi releases searing clouds southward up to 1.5 kilometers
Related news: Merapi's lava dome volume reaches 950 thousand cubic meters: BPPTKG
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