Colima

Colima is located 280 miles (450 km) west of Mexico City. Nearly 300,000 people live within 25 miles (40 km) of the volcano. It is considered Mexico's most dangerous and active volcano. In 1991, Colima produced a dome that rose 100 ft (30 m) above the crater rim. The dome collapsed producing flows on the upper slopes of the volcano. Bombs were also shot from the volcano during this event, causing several brush fires.