LUMAJANG - Mount Semeru, which is on the border of Lumajang and Malang Regencies, East Java, erupted again by throwing volcanic ash towards the northeast, Tuesday, January 6.
In less than an hour, the highest mountain on Java was recorded to have erupted three times, each at 08.07 WIB, 08.21 WIB, and 08.24 WIB.
Mount Semeru Observation Post Officer, Liswanto, reported that the first eruption occurred at 08.07 WIB with the height of the observed eruption column about 400 meters above the peak or 4,076 meters above sea level.
"The observed ash column is white to gray with medium intensity towards the northeast," said Liswanto in a written report received in Lumajang, quoted from Antara.
The eruption occurred again at 08.21 WIB with the height of the eruption column reaching about 600 meters above the peak or equivalent to 4,276 meters above sea level. The direction of ash spread is still monitored to the northeast with moderate intensity.
Three minutes later, at 08.24 WIB, Mount Semeru erupted again. However, the height of the eruption column in the third eruption could not be observed.
Liswanto explained that Mount Semeru is currently still at Level III (Alert) status. Therefore, the Center for Volcanology and Geological Hazard Mitigation (PVMBG) has issued a number of safety recommendations for the public around the mountain area.
"People should not do any activities in the southeast sector along Besuk Kobokan as far as 13 kilometers from the peak or the center of the eruption," he said.
In addition, the public is also asked not to carry out activities within 500 meters from the river banks along Besuk Kobokan. This area has the potential to be hit by the expansion of the hot cloud and lava flow up to 17 kilometers from the peak.
PVMBG also prohibits residents from carrying out activities within a radius of five kilometers from the crater or peak of Mount Semeru because they are prone to the danger of incandescent stone throwing.
People around the mountain slope are asked to remain aware of the potential for hot clouds, lava flows, and lava flows along the river or valley streams that flow upstream at the peak of Mount Semeru, especially in Besuk Kobokan, Besuk Bang, Besuk Kembar, and Besuk Sat, as well as small rivers that are tributaries of Besuk Kobokan.
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