These two photos show the summit of Volcán de Colima from Nevado de Colima in 1909 (top) and 1913 (bottom). They illustrate the effects of a major explosive eruption on 20 January 1913, which removed nearly 100 m of the upper part of the cone and created a 450-m-wide crater that was at least 350 m deep. The eruption produced heavy ashfall and pyroclastic flows that traveled down all flanks. This continued the typical Colima cycle of century-long dome growth and minor explosions culminating in a very powerful explosive eruption.

Photo from Waitz 1915 (Zeitschrift Vulkanologie).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Colima