The period that liquid water was present on the surface of Mars may have been shorter than previously thought. Channel landforms called gullies, previously thought to be formed exclusively by liquid water, can also be formed ...
Planetary Sciences
Mar 14, 2024
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7
Three billion years ago, amid one of the last wet periods on Mars, powerful debris flows carried mud and boulders down the side of a hulking mountain. The debris spread into a fan that was later eroded by wind into a towering ...
Planetary Sciences
Sep 18, 2023
0
297
(Phys.org) —Mudslides. Landslides. Volcanic debris flows. Avalanches. Falling rocks. They can come along so suddenly that people, homes, roads and even towns are buried or destroyed without much warning. Recently, we've ...
Earth Sciences
Apr 30, 2014
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0
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 ...
Earth Sciences
Mar 13, 2023
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2
The catastrophic debris flow that affected Montecito, Calif., in early January, 2018 was the result of a rare confluence of severe events. The Thomas Fire had been raging for weeks in Ventura and Santa Barbara counties, and ...
Environment
Jul 28, 2022
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3
A wildfire followed by an intense rainstorm is often a recipe for disaster. Without vegetation to cushion rainfall, water runoff can turn into a fast-moving, highly destructive landslide, called a "debris flow," which often ...
Earth Sciences
Jul 27, 2022
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4
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 ...
Environment
May 4, 2022
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14
A new study by UC Santa Barbara researchers speaks to the importance of public awareness programs in keeping residents—and emergency management offices—informed about rare but potentially lethal natural events in their ...
Environment
Oct 8, 2021
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20
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 ...
Environment
Jan 14, 2020
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12
Slurries of mud increasingly threaten the water we drink. This rush of sediment, known as "debris flow," is a type of erosion where mud and boulders in steep catchments suddenly tumble down the stream channel, often traveling ...
Environment
May 29, 2019
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20
