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
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
Actrually, it looks like it may have been a landslide from just W of the glacier. See here. Possibly from the steep hanging glacier in the middle of the Google Earth image.
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There has been a lot of confusion in the past 24hrs surrounding the term 'glacier burst' and exactly what happened to cause the #UttarakhandDisaster flood. Analysis by myself and colleagues suggested a landslide that took out part of a hanging glacier. 1/n
I'd like to clear up some terminology: 'glacier burst' is not a thing (looking at you @CNN & others). It's possible someone somewhere said glacial lake outburst flood (GLOF) which IS a thing, and that got miscommunicated in the media, but we don't think a GLOF was responsible 2/n
The glacier that we think collapsed is a very steep, hanging glacier. It is not a typical valley glacier, with low gradient/slope, that sometimes have lakes at the terminus. 3/n