Tungurahua

The Tungurahua volcano throws ash and stones during an eruption seen from Banos, Ecuador, Sunday, Aug. 31, 2014. The volcano entered an eruptive phase in 1999 and continues to this day.

Dolores Ochoa/AP

The Tungurahua volcano throws ash and stones during an eruption seen from Banos, EcuadorRead more

Lava spewed by the Tungurahua volcano can be seen from the city of Banos, Ecuador. An orange alert was issued by the volcanic activity of the Tungurahua

Andres Reyes/AFP

Lava spewed by the Tungurahua volcano can be seen from the city of Banos, Ecuador. An orange alert was issued by the volcanic activity of the Tungurahua

The Tungurahua volcano spews smoke as pictured from the city of Huambalo, Ecuador...The Tungurahua volcano spews smoke as pictured from the city of Huambalo, Ecuador, February 3, 2014. An orange alert was issued in response to the volcanic activity. REUTERS/Cris Toala Olivares (ECUADOR - Tags: ENVIRONMENT DISASTER)

Cris Toala Olivares/Reuters

The Tungurahua volcano, as seen from the city of Huambalo, Ecuador Read more

A View of volcano Tungurahua in Cotalo area, central Ecuador, in the early morning hours of 10 May 2013. The volcano is spelling incandescent rocks and generating explosions with an intensity which was defined as 'moderate' by the National Technical College's Geophysical Institute. Authorities gave 3,000 masks to residents living in areas affected by spelled ashes.

Jose Jacome/EPA

A view of the Tungurahua volcano in Cotalo area, central Ecuador. The volcano is spewing incandescent rocks and generating explosions with an intensity which was defined as ‘moderate’ by the National Technical College’s Geophysical Institute. Authorities gave 3,000 masks to residents living in areas affected by ash.