It depends what you mean by a mudflow. Mudflows can be caused as secondary effects by volcanoes and they are known as lahars. For example the summit glacier on top of Nevado del Ruiz, Columnbia (1985) melted when it was about to erupt, causing a 130ft deep mudflow which killed 23,000 people who were thirty miles away from the volcano. Just in case you don't mean a lahar, some people get them confused with pyroclastic flows which are primary effects by volcanoes and can be devastating. These flows are fast moving (usually greater than 50mph) currents of hot gas (can reach temperatures of 1,000 degrees) and rock. They can flatten trees, damage buildings and kill many people. For example in Japan on June 3, 1991, pyroclastic flows from Mount Unzen killed volcanologists Katia and Maurice Krafft and 41 other people, covering them in 5mm of ash. I hope this helped, I couldn't resist adding extra information :)
Lahar.
LAHAR
A lahar is a mudflow that results from water mixing with volcanic ash. They can be hot or cold.A pyroclastic flow is a flow of superheatd ash, rock and gas that moves down the side of a volcano and is much hotter than a lahar. This material is ejected directly from a volcano.
The name of a volcanic mudslide would be a lahar.
Initially, the water came from a glacier on top of the volcano Nevado del Ruiz. Part of this glacier melted when the volcano erupted. The mudflow gained more water from the soil as it stripped sediment from riverbanks.
Lahar.
magma
Lava by: Arn2 xD
LAHAR
Armero does not release eruptions. It is not a volcano; it is a former town in Columbia. Armero was buried by a mudflow resulting from an eruption at the volcano Nevado del Ruiz. The eruption tha triggered the mudflow was an explosive sub-Plinian eruption.
Rainwater will wash down the sides of the volcano. Heavy rain can sometimes mix with volcanic ash to form a dangerous mudflow called a lahar. If the volcano is erupting, rain that comes in contact with lava or hot pyroclastic material will turn to steam.
Yes. A lahar is a fast moving and potentially devastating mudflow produced by a volcano
Gravity
A lahar is a mudflow that results from water mixing with volcanic ash. They can be hot or cold.A pyroclastic flow is a flow of superheatd ash, rock and gas that moves down the side of a volcano and is much hotter than a lahar. This material is ejected directly from a volcano.
The name of a volcanic mudslide would be a lahar.
The heavy rains caused a mudflow. The mudflow came down the hill and hit the village.
Initially, the water came from a glacier on top of the volcano Nevado del Ruiz. Part of this glacier melted when the volcano erupted. The mudflow gained more water from the soil as it stripped sediment from riverbanks.