Are there any other significant examples of mountaineering features being permanently changed or lost like the Hillary Step of Everest following the 2015 Nepal earthquake?

Earthquakes seem to be the most common cause of such events, as was the case with the Denali glacier change following a 1912 earthquake and the aforementioned 2015 Nepal earthquake. But of course there are others such as Mount St. Helens that are more dramatic.

Are there other examples that are as significant in the world of mountaineering?