Lahars 1
Lahars 1 : Lahars are mudflows formed when volcanic particles mix with water. The source of the water may be a crater lake, heavy rain or snow. The loose ash and volcanic fragments are transformed into a dense fluidrock mixture that rushes down the slopes of a volcano and into surrounding valleys. Lahars are destructive to everything in their path, and the threat from lahars may last for years after an eruption has ended