On July 17th, 2016 there was a very large avalanche in the Aru Mountains of Tibet. This was followed by a second avalanche on 21st September, 2016. Planet Labs captured some imagery of the location of the second event and have created an excellent before and after, which you can find here.
For a more detailed analysis of the events see the excellent Landslide Blog Part 1 and Part 2. The Landslide Blog also includes some before and after images of the first event, which come from this page. One is a Sentinel 2 image captured after the first avalanche, and the other is a Landsat 8 image captured before the avalanche.
Now, there is Sentinel imagery available from after the second event we can do a full sequence:
January 23rd, 2016. Copernicus Sentinel Data, 2016
July 21st, 2016. Copernicus Sentinel Data, 2016
October 16th, 2016. Copernicus Sentinel Data, 2016
We have also put the Planet Labs images and the above Sentinel images into Google Earth. To view them download this KML file. The Sentinel imagery is actually slightly higher resolution than what you see above.