A large rock slope collapse from Punta dei Ross, Croda Marcora in the Italian Dolomites

An interesting paper has just been published in the journal Science, (Cook et al. 2021), which looks at the seismic signals generated by the Chamoli rockslide and debris flow. It concludes that the event was fully detectable by seismic instruments located at up to 100 km from the event.

Images of landslides from the 7 September 2021 M=7.1 Guerrero earthquake in Mexico

Tapovan Vishnugad – another landslide at the hydroelectric scheme that was devastated by the Cahmoli debris flow in northern India

Another giant, high mountain landslide occurred on 22 March 2021, this time close to the Yarlung Tsangpo in Tibet. The estimated mass is around 100 million tonnes.

A sensational Planet Labs SkySat high resolution satellite image of the Mount Silberhorn rock avalanche in New Zealand

A new paper (Grebby et al 2021) uses InSAR to detect precursory deformation of the Brumadinho tailings dam before the disastrous failure in 2019. The authors suggest that the failure might have been predictable with use of appropriate monitoring techniques.

The large landslide at Gamsberg mine: a high resolution Planet Labs SkySat satellite image of the aftermath of the failure

High resolution satellite imagery from Planet Labs showing the Mount Eagle peat slide in the Republic of Ireland

On Wednesday 2 December 2020 a major landslide destroyed four houses in Haines, Alaska. Two residents of the slope are missing.