Mount Semeru erupts 1,500 meters above the summit

TIME.CO, LumajangSemeru Mountain reported eruption This Sunday morning, October 1, 2023, around 06:33 WIB. The eruption column was observed up to 1,500 meters above the summit volcano with a height of 3,676 meters above sea level.

The Mount Semeru Volcano Observation Post report stated that the ash column was observed to be white, gray to brown in color with strong intensity towards the northeast and east. “The eruption was recorded on a seismograph with a maximum amplitude of 22 millimeters and a duration of 127 seconds,” Ghufron Alwi said on Sunday.

Mount Semeru’s activity status currently remains at level III (alert). The Center for Volcanology and Geological Disaster Mitigation (PVMBG) has issued recommendations, including not to carry out any activities in the southeastern sector along the Besuk Kobokan, up to 13 kilometers from the summit (center of the eruption).

Outside this distance, people are advised not to carry out activities within 500 meters of the riverbank (river boundary) along the Besuk Kobokan as they may be affected by the expansion of hot clouds and lava flows up to a distance of 17 kilometres. from the summit.


In addition to this, the PVMBG has appealed to the public not to carry out activities within a 5 kilometer radius of the crater or summit of Mount Semeru because there is a danger of being thrown by hot rocks.

The public is asked to pay attention to the potential risk of hot cloud avalanches (APGs), lava avalanches and lahars along rivers or valleys originating at the summit of Mount Semeru, particularly along Besuk Kobokan, Besuk Bang, Besuk Kembar and Besuk Sat. as potential for lahars in rivers, a small river that is a tributary of the Besuk Kobokan.

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