Storms now pounding Southern California are raising the specter of more danger for residents—debris flows in areas already ...

Southern Californians evacuated their homes for the second time this year, but this time, it’s for heavy rain and debris ...

Southern California faces the continued risk of rock and mudslides on wildfire-scarred hillsides Friday, a day after heavy rains sent debris across several roadways ...

Areas scarred by the Eaton Fire are at “high to very high risk” of debris flows this week. How do they happen? What is being ...

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 ...

Rain on burned hillslopes can trigger dangerous floods and debris flows. Those debris flows can move with the speed of a ...

Another issue concerns ash. If ash covers foliage ... especially when it comes to satisfying their appetite for insects. In addition to birds, a large number of mammals and reptiles rely on snags for ...

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 ...

Hundreds of people are expected to have fled from Greece's popular tourist destination as earthquake tremors continue for a ...