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It is unclear whether this question is asking about a Plinian eruption or a Pelean eruption. Both are explosive eruptions that produce large amounts of ash.

A Pelean eruption is notable for large pyroclastic flows, superheated avalanches of ash, rock, and gas that race down the slopes of a volcano.

Plinean eruptions are noted for producing enromous vertical columns of ash that extend for miles into the sky, sometimes reaching to over 20 miles high. The collapse of an an eruption column can result in pyroclastic flows. Plinian eruptions, particularly the sub-category of Ultra Plinian eruptions are the most violent events that Earth's volcanoes can produce.

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10y ago

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