SOLOPOS.COM – The eruption of Mount Merapi Monday (16/8/2021) morning. (Detik.com-BPPTKG)
Solopos.com, YOGYAKARTA — Mount Merapi on Monday (16/8/2021) erupted twice in the morning by spitting out hot clouds, the farthest reaching 3.5 kilometers.
Reported detik.comHanik Humaida, Head of the Geological Disaster Technology Research and Development Center (BPPTKG), said Merapi’s first eruption this morning occurred at 05:36 WIB. Hot clouds glide distance reaches 2 kilometers.
“The hot cloud was recorded on the seismogram with an amplitude of 49 millimeters and a duration of 165 seconds. The glide distance is 2,000 meters to the southwest,” said Hanik in his statement, Monday morning.
Also read: Asale Klakah, a village in Boyolali that is crossed by the hot clouds of Merapi
A few moments later followed by a second hot cloud at 05:53 WIB with a further distance. The hot cloud was recorded on a seismogram with an amplitude of 66 millimeters and a duration of 289 seconds.
“Merapi hot clouds at 05:53 WIB with a sliding distance of 3,500 meters to the southwest and a column height of 600 meters from the peak,” explained Hanik.
In addition, from the observation data on the activity of Mount Merapi per 6 hours today, several incandescent lava avalanches have been recorded. The direction of the fall is to the southwest.
“Observed 9 times incandescent lava with a maximum sliding distance of 1,500 meters to the southwest,” he explained.
Meanwhile, for the seismicity of Mount Merapi in the same period, 48 avalanches were recorded, 11 times large phase, and 10 shallow volcanic earthquakes.
Also read: Mbah Slamet, Witness of the Great Eruption of Merapi in the 1930s
BPPTKG stated that the current potential danger is lava avalanches and hot clouds in the southeast-southwest sector as far as a maximum of 3 kilometers to the Woro river and 5 kilometers to the Gendol, Kuning, Boyong, Bedog, Krasak, Bebeng, and White rivers.
Meanwhile, the ejection of volcanic material in the event of an explosive eruption can reach a radius of 3 kilometers from the peak of Mount Merapi.
The eruption of Merapi this morning caused three villages on the slopes of Mount Merapi in Selo District, Boyolali Regency, to be drenched in ash.
“There are three villages in Selo Sub-district that were hit by ash rain this morning,” said Head of the Selo District Disaster Risk Reduction Forum (FPRB), Mujianto.
The three villages that were flooded with ash rain were Tlogolele Village, Klakah Village and Jrakah Village. However, for the villages of Klakah and Jrakah only a part. Meanwhile, ash rain in Tlogolele Village flushed the entire village area.
Also read: Mount Merapi Erupts, Boyolali BPBD Sprays Roads to Eliminate Volcanic Ash
According to Mujianto, thick ash rain occurred in Tlogolele Village. The thickness level is the same as the ash rain on Sunday (8/8/2021) last week.
The volcanic ash material also covered the tile roofs of residents’ houses and roads so that they became whitish in color. Likewise, the vegetable and tobacco plants belonging to the residents, all turned white in the ash rain.
However, residents’ activities continue to run normally. Ash rain does not interfere with community activities.
In addition, ash rain also hit a number of areas in Magelang Regency, Central Java. Eight sub-districts were reportedly flooded with ash from the eruption of Mount Merapi this morning.
The Chief Executive of the Regional Disaster Management Agency (BPBD) of Magelang Regency, Edi Wasono, said that today there was ash rain in several areas in Magelang Regency. For the temporary report, it occurred in the sub-districts of Dukun, Sawangan, Tegalrejo, Pakis and Candimulyo. In addition, there are in Windusari, Secang and Kaliangkrik Districts.
“Based on the report update until 08.00 WIB, thick, medium and light ash rain occurred in 8 sub-districts in Magelang Regency,” said Edi when contacted on Monday.