Global Volcanism Program | Image GVP-05562
The history of the Colima volcanic complex has been characterized by repetitive collapse of the stratovolcanoes, producing highly mobile debris avalanches. The entire broad apron south of Colima in this view, including the area underlying Colima City at the middle left, is formed of deposits produced by volcanic landslides and associated lahars. The youngest avalanche, about 2600 years ago, traveled 35 km as far as the city of Colima. About 250,000 people live on top of young debris-avalanche deposits.
Photo by Lee Siebert, 1997 (Smithsonian Institution).