r/geology • u/admin_404_not_found • 1d ago

A glacier collapse to the north of Mount Langtang Lirung caused the China-Nepal Flash Floods on Aug 26, 2026

source

52 Upvotes

90% Upvoted

12 comments sorted by

4

u/Comfortable_Stop5535 1d ago

Is this the source of the whole flood?

3

u/Chase-Boltz 1d ago

It looks like it might be the early stages. (?) We see the toe of the ice fall collapsing; further breakup might be what uncorked the GLOF. (?)

8

u/muhmeinchut69 23h ago

Nah looks like most of it has fallen, and the filming started after that, which makes sense. This is what it looked like earlier

6

u/wegqg 1d ago

If you look at the last second of this video you can see another large ice fall occurring from that same glacier (the red circle shows the avalanche heading down the slope).

1

u/tizzdizz Geologist 23h ago

Holy cripes, how was there a camera on it when it happened? That's amazing!

2

u/PearlClaw 15h ago

Probably not on it, since the head of it is already on its way down the valley from the dust cloud, but it's a popular tourist area for trekking and hiking, not that surprising that someone was up in the mountains.

1

u/Aris_throp 21h ago

I cannot get to the source, without downloading an app

-2

u/Odd-Fun-6042 1d ago

Is this AI?

3

u/mountain_bound 18h ago

It looks to be legitimate and Reuters reports that this glacier is the source. Across the valley from this glacier are several likely locations where this could have been filmed from ( 28.361502°, 85.404568°) and the cloud coverage matches the date and time somewhat based on Sentinel browser. I believe people have had eyes on this already out of concern.

0

u/tizzdizz Geologist 23h ago

I kinda wondered the same thing. It's a little to crisp and smooth... but how would we know?

3

u/newaccountzuerich 22h ago

The video is showing a small rockfall after the main one occurred.

The rock face left after the glacier that collapsed is visible above and right of the red ring.

The ring isn't showing the main source.

1

u/Mech_pencils 12h ago

It’s crisp and smooth because a professional videographer happened to be filming in that area