A 1991 volcanic eruption in Chile buried 58,000 square miles in ash
One of the most powerful volcanic events of the 20th century occurred in 1991 when Chile's Hudson Volcano released a massive ash cloud that transformed thousands of miles of South American landscape.
The Hudson Volcano in the Chilean Andes began a violent eruption in August 1991 that lasted for weeks. It ejected nearly 1.5 cubic miles of volcanic material, blanketing 58,000 square miles of Chile and Argentina in thick, gray ash. In some regions, the ash falls were so heavy they collapsed building roofs and buried entire pastures.
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