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No. The most dangerous products of volcanic eruptions are pyroclastic flows. While lava flows can be very destructive, they generally move slowly and can only move downhill. Pyroclastic flows avalanche-like clouds of hot ash, rock, and gas. They move very quickly, often exceeding 100 miles per hour, leaving little chance of escape. Their great momentum means that they can cross valleys, hills, and ridges that would stop or redirect lava flows.

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Q: Are lava flows the greatest hazard of volcanoes?
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The most dangerous hazard of a composite core volcano is the eruption of lava?

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