Scientists measure a debris flow in unprecedented detail

Debris flows are fast-moving and highly variable mixtures of soil, rock, water, and trees that can wreak havoc on downslope communities. Small debris lags behind larger particles, but it is not clear how this sorting occurs ...

Getting a better view of landslide risk with LiDAR

In the mountains of North Carolina, landslides are no joke. Triggered by heavy rains, mountainside soils can become saturated and "unstuck." As a result, what starts as a small landslide can quickly escalate into a huge debris ...

Philippine volcano trembles more, spews lava half-mile high

A volcano near the Philippine capital spewed lava into the sky and trembled constantly Tuesday, possibly portending a bigger and more dangerous eruption, as tens of thousands of people fled villages darkened and blanketed ...

Landslide risk heightens when rains hit fire-ravaged areas

Rainfall can be a risk as much as a relief in fire-damaged areas of California. Earlier this year, at least 21 people died and more than a 100 were injured when heavy rains prompted a mudslide in Montecito after the Thomas ...

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