The 3 August 2024 debris flow in the Ridi valley, Kangding, Sichuan Province, China
27 people were killed by a massive channelised debris flow in China last year. On 3 August 2024, a large debris flow occurred in the Ridi valley, Kangding, Sichuan Province, China. This event is described in a paper (Cheng et al. 2025) just published in the journal Landslides. Whilst the paper itself is behind a paywall, this link should provide access to it. This event is a really good example of a phenomenon that keeps cropping up, namely multiple shallow landslides that transition into a highly destructive channelised debris flow, generated by extremely intense rainfall. The value of the Ridi…
The 15 June 2025 landslide at Zhonghe in western Guangdong province, China
A community in China had a narrow escape when a landslide, triggered by Typhoon Wutip, occurred on the slopes above the village. Fortunately, the population had been evacuated when a local woman noted signs that a failure might be imminent. At about 4 am on 15 June 2025, rainfall associated with the remnants of Typhoon Wutip triggered a landslide at Zhonghe village in western Guangdong province in China. At present I am unable to give a precise location for this event, which is listed in the Chinese media as having occurred at Lian’er Natural Village, Zhonghe village, located in Guizi…
Images of the May 2025 Yukon River landslide
Derek Cronmiller of the Yukon Geological Survey has provided a stunning set of the images of the fascinating recent failure that partially blocked the Yukon River. Following my post yesterday about the May 2025 landslide on the Yukon River, Derek Cronmiller, who is head of Surficial Geology at the Yukon Geological Survey kindly made contact to provide further information about this most interesting failure. He has also provided an amazing set of images of the landslide. Derek noted the following about the landslide:- “The slide is a 9 km above Lake Laberge and happed sometime between May 14th and 18th as constrained by Sentinel…
A large landslide on the Yukon River in Canada
In May 2025, a 950 m wide landslide occurred on the banks of the Yukon River in Canada. A few days ago, the Yukon Geological Survey posted some information to its Facebook site regarding a large landslide that has occurred on the banks of the Yukon River close to Burma Road. This was the information…
Multiple rainfall-triggered landslides in Ho Bon commune Vietnam in August 2023
Between 4 and 6 August 2023, intense rainfall triggered at least 346 landslides in the area around Ho Bon commune in Mu Cang Chai district, Yen Bai province in Vietnam I have written frequently on this blog about clusters of rainfall-induced landslides. Another really interesting example has been highlighted in a paper (Toan et al.…
Bukit Mantri: a mine waste facility failure in Malaysia
On 17 May 2025, a failure occurred in a mine waste facility at the Tawau gold mine in Malaysia. Images suggest that this might have been an overtopping event in a contaminated water storage pond. On 17 May 2025, there was a failure of a mine waste storage facility at Bukit Mantri in Malaysia. The…
Nottingham Trent University and the University of Hull
Later this year I’ll leave the University of Hull to take up the role of Vice-Chancellor and President at Nottingham Trent University. Nottingham Trent University has about 40,000 students and staff spanning five university sites. It is the fifth largest university in terms of enrolled students in the UK. In recent years it has enjoyed…
Landslides triggered by Hurricane Helene in September 2024
The USGS has published a preliminary report on landslides triggered across western North Carolina, northern South Carolina, eastern Tennessee, and parts of southern Virginia by Hurricane Helene in September 2024. Over 2,000 failures were triggered by up to c.700 mm of rainfall in a 72 hour period. Between 26 and 28 September 2024, the remnants…
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About Dave
Dave Petley is the Vice-Chancellor of the University of Hull in the United Kingdom. His blog provides commentary and analysis of landslide events occurring worldwide, including the landslides themselves, latest research, and conferences and meetings.