Wednesday Morning, Mount Semeru Erupted Again For 102 Seconds

Eruption of Mount Semeru. (Doc PVMBG)

JAKARTA - Mount Semeru on the border of Malang and Lumajang Regencies, East Java, erupted again on Wednesday morning with an amplitude (vibration) of a maximum of 22 millimeters (mm). The 102-second eruption was recorded on a seismograph with an amplitude of 22 mm at 01.51 WIB," said Mount Semeru Observation Post Officer Ghufron Alwi in a statement quoted by ANTARA, Wednesday, August 7. According to him, the height of the eruption column was not observed from the Mount Semeru observation post, as well as two previous eruptions. However, the activity was reported to be the fifth eruption of Mount Semeru since Tuesday (6/8) morning at 07:37 WIB. That morning, observation post officers found an eruptive column height of Mount Semeru is approximately 500 meters above the peak, or 4,176 meters above sea level. The column of gray ash with moderate to thick intensity towards the southwest. Semeru Mountain has the status of Alert or Level II, so that the Center for Volcanology and Geological Hazard Mitigation (PVMBG) provides a number of recommendations, namely the public is prohibited from carrying out any activity in the southeast sector along Besuk Kobokan, as far as 13 kilometers from the summit (the eruption center). Then outside of that distance, he continued, the community is not allowed to carry out activities at a distance of 500 meters from the river bank (river) along the Besuk Kobokan, because it has the potential to be affected by the expansion of hot clouds and lava flows up to 17 kilometers from the summit.

The community is also not allowed to move within a radius of 5 kilometers from the crater/peak of Mount Semeru because it is prone to the dangers of throwing stones (pijar). In addition, it is necessary to be aware of the potential for hot clouds, lava avalanches, and lahars along rivers/valleys that originate at the peak of Mount Semeru, especially along Besuk Kobokan, Besuk Bang, Besuk Kembar, and Besuk Sat as well as the potential for lahars in small rivers that are tributaries of Besuk Kobokan.