Kleine Gaisl (Piccola Croda Rossa), is a large (2859 m) mountain in the Braies Valley in the South Tyrol in the northern Italian Dolomites. At the end of last week a large rockfall occurred in a series of stages over two days between 18th and 20th August.\u00a0 There is a good report on Planet Mountain<\/a>, although they have the volume wrong by three orders of magnitude. From other sources the estimated volume is 600,000 to 700,000 cubic metres.<\/p>\n Mountain guide Roman Valentini captured a part of the rockfall in a video that has been uploaded to Youtube<\/a>.\u00a0 But note that this is not the main collapse event, as Planet Mountain notes<\/a>:<\/p>\n The footage below was filmed by Roman Valentini, a mountain guide working for Alta Badia Guides<\/a>, who was in the area on Thursday, August 18 at around 12:30. Although this is only the first, smaller part of the landslide, Valentini told planetmountain.com<\/a> “It was ‘spectacular’ … I\u2019ve never seen anything quite like it. It looked like a river in spate, with rocks half the size of houses tumbling down.”<\/p><\/blockquote>\n Although the main rockfall event occurred later (the seismic data will be interesting here in order to understand the sequence of events), there is a significant collapse event at about three minutes into the video:<\/p>\n