Assertion: volcano's eruption | /r/AtLocation | 16th century
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Source sentences:
text: The 33-page report outlined potential hazard areas, rock composition, and areas affected by previous eruptions; there is evidence that during the last eruption, which occurred in the 16th century, the debris avalanche deposits covered a volume of 20–30 km³, reaching as far as the Pacific Ocean (the largest documented in Central America and nearly 10 times the area covered by the Mt. St. Helens debris avalanche in 1980).