noun
mudflow; volcanic mud flow
A flow of water-saturated volcanic ash and debris, often triggered by heavy rain on volcanic slopes. Used in geology and disaster contexts.
火山の噴火後、大雨で泥流が発生した。
After the volcanic eruption, heavy rain caused a mudflow.
泥流は谷沿いの集落を襲った。
The mudflow struck the settlements along the valley.
Compound of 泥 (mud) and 流 (flow). A straightforward Sino-Japanese term for volcanic mudflow.