Lahars
Lahars
Filter Total Items: 5
Volcano Hazards in the Cascade Range
The U.S. Geological Survey's Cascades Volcano Observatory strives to serve the national interest by helping people to live knowledgeably and safely with volcanoes in WA, OR, and ID.
Lahars – The Most Threatening Volcanic Hazard in the Cascades
Lahars, along with debris flows and debris avalanches, are masses of rock, mud and water that travel rapidly downslope and downstream under the action of gravity.
Excess Sediment Accumulation Causes Flooding in the Cascades
Release of excessive sediment from volcanically disturbed watersheds can persist for decades and greatly extend the duration of an eruption's damaging effects
Debris Avalanches Occur at Many Cascade Volcanoes
Massive slope collapse is natural part of the life cycle of Cascade volcanoes.
Automated Lahar Detection Systems
The Cascades Volcano Observatory uses Acoustic Flow Monitors (AFMs) to detect lahars originating on Cascades volcanoes.