Sinabung volcano (Sumatra, Indonesia) activity update: frequent pyroclastic flows up to 4.5 km long

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Several pyroclastic flows (dangerous hot avalanches of fragmented lava and hot gasses) traveled down the SE (and some on the NE) flanks of the volcano, threatening again the closest inhabited areas to the S of Sinabung. The flows originated by collapses on the viscous growing lava lobe on the steep southeastern flank of the volcano and traveled distances of 3-4.5 km. Some still inhabited villages on the southern feet of the volcano are now at elevated risk.