Large lahars can crush, abrade ... melted snow and rock inundated the town of Armero and killed an estimated 25,000 people. This event, now known as the Armero tragedy, was the costliest volcanic ...
The 1985 Nevado del Ruiz disaster in Colombia serves as a grim reminder of the destruction lahars can cause. Following an eruption, a massive mudflow buried the town of Armero, killing an ...
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