CENAPRED reported that each day during 16-21 September there were 52-121 steam-and-gas emissions from Popocatépetl, most of which contained minor amounts of ash.
Weather clouds often obscured views of the volcano.
The Alert Level remained at Yellow, Phase Two (middle level on a three-color scale).
Source: Centro Nacional de Prevencion de Desastres (CENAPRED)
Erta Ale (Ethiopia)
