Photo by Lee Siebert, 1978 (Smithsonian Institution)
Most news feeds have items and there is at least one current photograph, many are not, 400 people evacuated as a precaution, this volcano has previous. Ash has fallen in Quito. Earth tremors started during May/June but no major eruption is forecast.
Cotopaxi is a stratovolcano that has erupted 50 times since 1738. The 1877 eruption melted snow and ice on the summit, which produced mudflows that traveled 60 miles (100 km) from the volcano. The most recent eruption of Cotopaxi ended in 1904. Reports of an eruption in 1942 have not been confirmed. The most recent activity was an increase in steam emissions, melting snow, and small earthquakes from 1975-1976
http://earthquake-report.com/2015/04/02/volcano-news-by-volcanologist-janine-krippner/ (and donate if you are flush)