Quito is characterised by the high number of volcanoes that surround it, especially it’s oldest volcano Pichincha which is on the western side of the city. Quito is the only capital city in the world which is constantly under the threat of an active volcano the form of Pichincha. Pichincha has two openings Rucu Pichincha at 4700 metres above sea level and Guagua Pichincha at 4794 metres.
The last major eruption of Pichincha was in 1660 when the city was covered in more than 10 inches of volcanic ash. But minor eruptions have been happening since on and haven’t had a major effect on the city’s activities. The last eruption which occurred in 2006 didn’t have a damaging effect on the city, but ash spurts did disturb the daily life of Quito citizens, including the closure of the international airport.
Nearby volcanoes include Cotopaxi, Sincholagua, Antisana, and Cayambe of the Central Cordillera based on the eastern side of Quito. The western side is covered by the Western Cordillera which includes the volcanoes Illiniza, Atacazo, Pichincha, and Pululahua.