Mount Semeru Spews 1,000 Meter Volcanic Ash

On Wednesday, (3/2/2022), Mount Semeru emitted volcanic ash whose height reaches 1,000 meters above the peak.

mount semeru
Screenshot from the CCTV footage of the Mount Semeru Monitoring Post shows volcanic ash from the eruption of Mount Semeru on Wednesday (3/2/2022) night. (PVMBG)

ACTNews, LUMAJANG – Another minor eruption of Mount Semeru in East Java occurred on Wednesday (2/3/2022) at 10:16 p.m. local time. It spews volcanic ash whose height of the column was approximately 1,000 meters above the peak.

The Volcanological Survey of Indonesia’s Officer at Mount Semeru Observation Post, Mukdas Sofian, reported that the volcanic column was observed to be gray in color with thick intensity and moved to the southeast. This eruption was recorded on a seismograph with a maximum amplitude of 22 millimeters and a duration of 1,200 seconds.

On Thursday (3/3/2022) morning from midnight till 6 a.m. local time, the volcanic activities of Mount Semeru were observed to be decreasing. The volcano is currently on alert level III, and locals are prohibited from carrying out activities in the southeast sector along Besuk Kobokan within a radius of 13 kilometers from the summit. They are also advised strongly not to get within 500 meters from the riverbank along Besuk Kobokan because it can potentially be affected by the eruption of volcanic clouds and lava that flows up to 17 kilometers from the summit.

In addition, they are also prohibited from doing activities within the radius of 5 kilometers from the crater of Mount Semeru due to the potential hazard of incandescent rocks, volcanic clouds, and lava avalanches as well as lahars along the rivers whose headwaters are on the summit of Mount Semeru, especially in Besuk Kobokan, Besuk Bang, Besuk Kembar, and Besuk Sat. Residents are also advised to be aware of the potential lahars that may flow along the tributaries of Besuk Kobokan.