As the Los Angeles area begins cleaning up from devastating wildfires, city officials and emergency managers are worried ...

Mud and debris flows closed roads and prompted evacuations in parts of Southern California recently devastated by wildfires.

Because the concentration of sediment is so high, especially when there is a large amount of ash and clay, debris flows behave more like a slurry of wet cement than a normal stream. This fluid can ...

G eologists are closely monitoring Mount Spurr in the Aleutian Arc of Alaska, USA, after continued volcanic unrest. The Alaska Volcano Observatory (AVO) monitoring the situation says that an eruption ...