This looks like it could be from a (unnamed?) glacier flowing from Trisul peak. @planetlabs imagery from Feb 7 (L image) shows lots of dust/moisture in the air (same as in the videos), which is not present on Feb 6 (R). @BhambriRakesh @davepetley @irfansalroo https://twitter.com/BhambriRakesh/status/1358352398406795264
No lakes of any size visible on the surface but unfortunately the satellite imagery doesn't show farther upvalley and so can't tell if it was from a large supraglacial landslide that might have broken up the glacier.
Looks like at about 30.37049N, 79.76369E