Friday Afternoon, Mount Merapi Emits 2 Hot Clouds Mount Merapi emitted hot clouds of avalanches on Friday, (4/9/2021) at 17.07 WIB and 17.26 WIB. This hot cloud of avalanche leads to the southwest. Jumat, 9 April 2021 22:07 This hot cloud of avalanche leads to the southwest. "There was a hot cloud of avalanches on Mount Merapi on April 9, 2021 at 17.07 WIB," said Head of the Center for Geological Disaster Research and Technology Development (BPPTKG) Hanik Humaida in a written report on Friday. Based on the BPPTKG data, hot clouds of avalanche were recorded on a seismogram with an amplitude of 16 millimeters. The duration of the hot clouds avalanche was recorded at 107 seconds.