Popocatépetl volcano (Mexico): explosive activity is back again after calm period
Explosions started around 20:01 and 20:43 local time on 16 Jul evening. Ash emissions reached 19,000 ft (5,800 m) altitude and drifted W.
74 emissions of water vapor, gases and small amounts of ash were recorded.
The seismic instrument recorded 457 minutes of volcanic tremor.
Incandescence continues to be observed in the summit crater at night and caused small avalanches of glowing lava blocks that rolled down along the slopes as visible in the attached image.
Source: Centro Nacional de Prevención de Desastres volcano activity update 19 July 2021