Volcan Acatenango, Guatemala (13,045) is the higher of the twin peaks to the right, the lower being Yepocapa. The smoke plume rises above Volcan Fuego. This photo was taken from the slopes of Volcan Agua, about 8 miles away.
São Miguel Island is also referred to locally as "The Green Island", is the largest and most populous island in the Portuguese archipelago of the Azores - https://en.wikipedia.org/wiki/S%C3%A3o_Miguel_Island
Acid lakes at the Dallol Volcano in Danakil Desert, Ethiopia | Unique in that lava does not flow from it.