"#MANILA, #Philippines – State volcanologists observed an increase in the frequency of pyroclastic density currents (#PDCs) from #MayonVolcano in #Albay, which started late Sunday afternoon, July 9.
PDCs are made up of fragmented volcanic particles, gases, and ash that travel down volcanic slopes at high speeds."
https://www.rappler.com/nation/luzon/phivolcs-mayon-volcano-update-advisory-july-10-2023-8am/