Federal flood measurements often don’t match what people see in their communities. Scientists have created a hyperlocal solution.
Hazards & Disasters
Posted inThe Landslide Blog
The devastating 26 to 28 September 2024 rainfall event in Nepal
The most severe rainfall event ever recorded in Nepal impacted about 2.6 million people, causing losses of US$370 million and about 270 lives. Between 26 and 28 September 2024, a devastating late monsoon rainfall event in Nepal triggered hundreds of landslides. In landslide terms, this was the most serious event recorded in Nepal outside of […]
Posted inThe Landslide Blog
A likely large, tsunamigenic landslide in Tracy Arm inlet, Alaska on 10 August 2025
Seismic data and eye-witness reports of a displacement wave point to a large landslide at 5:30 am. On 10 August 2025, at 5:30 am local time, the Alaska Earthquake Center detected a seismic signal that was almost certainly generated by a landslide. They have posted the record of the seismic signal to Twitter. Their posting […]
Posted inThe Landslide Blog
The challenges of the valley blocking landslide in the Matia’an Valley in Wanrong township, Taiwan
The 21 July 2025 rock avalanche is generating a lake that could have a volume of 86 million cubic metres at the point of overtopping. This poses a threat to at least seven downstream communities in east Taiwan. Yesterday, I posted about the enormous 21 July 2025 rock avalanche in the Matia’an valley, in Wanrong […]
Posted inThe Landslide Blog
The 21 July 2025 giant rock avalanche in Wanrong township, Taiwan
On 21 July 2025, a very large rock avalanche occurred in the mountains of Hualien County, Taiwan. Initial measurements suggest that this ran out over about 6 km. On 21 July 2025, an extremely large rock avalanche occurred in the administrative area of Wanrong Township in Hualien Count in Taiwan. This event was detected on […]
Posted inNews
California’s Getting an Earlier Start to Wildfire Season
Human-caused climate change has pushed the onset of fire season in the state to as much as 46 days earlier than it was 30 years ago.
Posted inThe Landslide Blog
The possible causes of the Dharali (Tharali) debris flow in Uttarakhand, India
A possible cause of the 5 August 2025 landslide is the failure of a large body of glacial material high in the valley above the village. The imagery that is emerging after the 5 August 2025 debris flow in Dharali (Tharali), in Uttarakhand, northern India make very somber viewing. Melaine Le Roy posted this comparison […]
Posted inThe Landslide Blog
A very initial perspective on the 5 August 2025 debris flow at Tharali / Dharali in northern India
A massive landslide has destroyed a remote Himalayan village. Fifty or more people may have died. Astonishing and terrifying footage has appeared today of a dreadful debris flow that struck the village of Tharali (also called Dharali in some places) in Uttarakhand today. The video has been widely shared on social media. This is a […]
Posted inThe Landslide Blog
The 15 July 2025 quick clay landslide at Portneuf in Canada
A quick clay landslide in the Quebec region has destroyed most of a farm and a local road. Over the next few days I will try to bring the blog up to date with some of the major landslides that have occurred whilst I have been on leave. To start, on 15 July 2025 an […]
Posted inEditors' Highlights
New Insights into How Rocks Behave Under Stress
New 3D imaging techniques show hidden patterns of stress that help explain how and why rocks break.