CENAPRED reported that each day during 16-23 November there were 9-29 steam-and-gas emissions from Popocatépetl that drifted NW, NE, and E.
At 1714 on 19 November an explosion generated an ash plume that rose 2 km above the crater rim and drifted NE.
A minor explosion at 0230 on 21 November generated an ash plume that rose 600 m and drifted NW, and at 0136 the next morning another small explosion produced an ash plume that rose 800 m and drifted NE.
The Alert Level remained at Yellow, Phase Two (the middle level on a three-color scale).
Source: Centro Nacional de Prevencion de Desastres (CENAPRED)
Asosan (Japan)