Colombia, S.America ... 13th November 1985
Destructive Plate Boundary - Nazca under S.American Plate
3:06pm - Ash and Pumice thrown from vents
7:00pm - Evacuation called off as Ash stopped falling
9:08pm - Lava erupts, Ash and Rock thrown in air, Heavy Rainfall, Pyroclastic Flow moves hot volcanic debris across snow glacier. This melts, and mixes with Ash to create Lahars. Lahars grew as they moved down the valley, picking up soil.
Lahars were REALLY thick and fast (50km/h). Noise created by Lahars was soo.. loud, it made houses and ground shake, and convo by shouting was impossible.
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