A large pyroclastic flow races down Mayon Volcano, sending ash sweeping across the slopes. The fast-moving surge shows why ...
A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ...
A pyroclastic event at Mayon Volcano triggered fresh warnings as hot ash, gas, and volcanic debris moved down the slopes.
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