Napo, Orellana and Sucumbios Provinces – The Ecuadorean National Risk Control Agency issues an orange alert in the immediate areas around the Reventador volcano due to renewed volcanic activity. The local authorities advise visitors not to attempt to climb the volcano. Ash fall from Reventador volcano has the potential to affect flight operations around Quito (95 km northeast).
http://www.volcanodiscovery.com/reventador/news/43598/Reventador-volcano-Ecuador-activity-update.html