mudflow

Noun

1. A type of landslide characterized by large flows of mud and water.
   • Some believe an earthquake set off the disaster, others that the mudflow was caused by a company drilling for natural gas. - 2015 September 21, Rachel Nuwer, “Indonesia’s ‘Mud Volcano’ and Nine Years of Debate About Its...
   • [A] rockflow involving at least 1.5 million m3 of material moved down the Uchau-Su river valley into the sea within a day. Some mudflows are so viscous that they come to a halt in the stream channel. On slopes, soilflow...
2. The dried-out product of such a flow.