Mount Semeru Erupts Six Times, Highest Eruption Reaches 1 Kilometer
LUMAJANG - Mount Semeru Observation Post Officer recorded six eruptions of Mount Semeru with an eruption height of up to one kilometer on Monday morning from 02.38 WIB to 08.30 WIB.
The height of the eruption was observed to vary, ranging from a height of 500 meters to 1,000 meters above the peak of Mahameru and the highest eruption occurred during the eruption at 08.11 WIB.
"There was an eruption of Mount Semeru on Monday, March 17, 2025 at 08.11 WIB with an eruption column height of about 1,000 meters above the peak or 4,676 meters above sea level (masl)," said Mount Semeru Observation Post Officer Liswanto, quoted by ANTARA, Monday, March 17.
According to him, the ash column was observed to be white to gray with moderate intensity to the southwest and when the report was made, the eruption was still ongoing.
"The eruption of Mount Semeru occurred again at 08.24 WIB and the visual eruption was not observed. When the report was made, the eruption was still ongoing," he said.
He explained that the Center for Volcanology and Geological Hazard Mitigation (PVMBG) provided a number of recommendations related to the alert status of Mount Semeru, namely that people are prohibited from carrying out any activities in the southeast sector along Besuk Kobokan as far as eight kilometers from the summit (the center of the eruption).
Then outside of that distance, people are not allowed to carry out activities at a distance of 500 meters from the riverbank (river border) along Besuk Kobokan, because it has the potential to be affected by the expansion of hot clouds and lava flows up to a distance of 13 kilometers from the summit.
SEE ALSO:
"People are also not allowed to move within a radius of three kilometers from the crater/peak of Mount Semeru, because they are prone to the dangers of throwing incandescent stones," he said.
He said the public also needs to be aware of the potential for hot clouds, lava avalanches, and rain lava along rivers/valleys that originate at the top of Mount Semeru, especially along Besuk Kobokan, Besuk Bang, Besuk Kembar, and Besuk Sat, as well as the potential for lava in small rivers that are tributaries from Besuk Kobokan.