Two different kinds of airborne hazard
The second Indonesia video is a prompt to distinguish volcanic ash from smoke produced by land and forest fires. BMKG's 8–14 September weather outlook tracked both. Ash can affect aviation and breathing near a plume; smoke may spread far from a fire through the lower atmosphere. The source, altitude and wind direction matter more than a national headline count when judging a local exposure.
Indonesia's Geological Agency continued to monitor Anak Krakatau after the continuous-eruption episode ended. BMKG's satellite interpretation and the Geological Agency's volcanic alert serve different purposes: one describes what is in the atmosphere, while the other assesses the volcano and exclusion zone. Rain can remove some particles from air locally, but it can also complicate travel and visibility.
The video title repeats a six-volcano claim and an affected-person figure. This article does not treat those as an independently verified single event. Readers should check the named volcano's current Geological Agency notice and BMKG's local weather or air-quality information before travel.