noun
volcanic mudflow; lahar
Technical term in volcanology for a destructive mudflow composed of volcanic debris and water, often triggered by heavy rain or crater lake outbursts.
火山泥流は、火山噴火に伴って発生することがある。
Volcanic mudflows can occur in association with volcanic eruptions.
この地
A large-scale volcanic mudflow occurred in this area in the past, sweeping away many houses.