CENAPRED reported that each day during 8-14 January there were 76-268 steam-and-gas emissions from PopocatÚpetl, some of which contained ash (during 8-9 December).
An explosion at 0631 on 9 January produced an ash plume that rose 3 km above the crater rim and drifted NE.
The event also ejected incandescent material onto the flanks as far away as 1 km from the crater.
The Alert Level remained at Yellow, Phase Two (middle level on a three-color scale).
Source: Centro Nacional de Prevencion de Desastres (CENAPRED)