LUMAJANG - Mount Semeru, which has a height of 3,676 meters above sea level (masl), has erupted again with an eruption as high as 1 kilometer above the peak known as Mahameru.
Officers of the Mount Semeru Volcano Observation Post, Ghufron Alwi, said that the eruption of Mount Semeru at 05.39 WIB with an eruption height was observed to be about 1,000 meters above the peak (4.676 m above sea level).
As reported by ANTARA, the volcanic ash column was observed to be white to gray with thick intensity to the north and northwest. The eruption was recorded on a seismograph with a maximum amplitude of 22 mm and a duration of 124 seconds.
Monitoring of the activity of Mount Semeru on Friday, February 9, the 06.00-12.00 WIB period was recorded at 17 eruptions/eruption earthquakes with an amplitude of 10-22 mm and a long earthquake of 45-131 seconds.
Three gusts with an amplitude of 3-5 mm and a long earthquake of 32-33 seconds, as well as one harmonic with an amplitude of 2 mm and a long earthquake of 241 seconds.
The status of Mount Semeru at level III or alert, so that people are prohibited from carrying out any activities in the southeast sector along Besuk Kobokan, as far as 13 km from the summit (the center of the eruption).
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Beyond this distance, the community does not 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 17 km from the summit.
The community should not move within a 5 km radius of the crater/peak of the highest mountain on the island of Java because it is prone to the danger of throwing stones (pijar).
The public is also advised to be aware of the potential for hot clouds, lava avalanches, and lahars along rivers/valleys that originate at the peak of the Semeru Volcano, especially along Besuk Kobokan, Besuk Bang, Besuk Kembar, and Besuk Sat as well as the potential for lahars in small rivers which are tributaries of Besuk Kobokan.
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