Merapi volcano (Java, Indonesia): pyroclastic flow reported yesterday

A pyroclastic flow (hot avalanche of lava particles and ash) descended the southwestern flank of the volcano yesterday, reaching approx. 1800 m distance. It resulted from a partial collapse of the growing active lava dome at the southwestern rim of the volcano's summit crater.
Ash plumes were separated from the pyroclastic density current (so-called phoenix clouds).
The event was detected on a seismic signal with a maximum amplitude of 14 mm and a duration of 160 seconds.
The public is being warned to stay at least 3 km away from the summit.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 7 December 2021