A violent volcanic eruption will produce pyroclastic flows, which are somewhat like avalanches of hot ash and rock, rather than lava flows. Pyroclastic flows are faster than any lava flow.
When they erupt effusively, though, the lava is so viscous that it flows very slowly.
A lava flow is where lava flows down the side of a volcano.
the volcano that has pyroclastic flow in addition to liquid lava is the composite or stratovolcano.
Lava at the top of a volcano will generally flow downhill.
A'a is not a kind of volcano. A'a is a texture that a lava flow can take on, characterized by a surface covered in sharp fragments. There is no particular height to the lava flow, or height of volcano from which such a flow erupts.
A lava flow is simply a flow of liquid rock down a slope that usually results from an effusive eruption. A pyroclastic flow is an avalanche-like flow of hot ash, rock and gas that moves down a volcano during an explosive eruption, The move much faster than lava flows and are far more dangerous.
SGV
Basaltic lava flows much faster than ryholitic lava.
Volcano
Basaltic lava flows much faster than ryholitic lava.
The village threatened by the 1983 lava flow in Hawaii was Kalapana. It was eventually destroyed by the lava flow from the Kilauea Volcano.
During a volcanic eruption, lava flows from the vent of the volcano, following paths of least resistance down the slopes. The speed and distance of the lava flow depend on various factors such as the type of lava, gradient of the slope, and presence of obstacles. Lava flows can cause destruction to surrounding areas and communities in the path of the flow.
A lava flow is a stream of molten rock that moves downhill from an erupting volcano.