Pyroclastic flow from Semeru volcano today (image: PVMBG)
The volcano continues to produce pyroclastic flows and its activity remains at elevated levels.
Hot rock falls traveled in direction of Besuk Kobokan reaching length of at least 3000 m from the summit today. A lifted ash plume separating from the pyroclastic density current rose approx. 500 m above the summit.
The local volcano observatory PVMBG also reported a seismic signal with a maximum amplitude of 16 mm and a duration of 233 seconds.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 8 December 2021