Що сталося в Непалі 26 серпня 2026: наука про обвал льодовика й селевий потік простими словами

On August 26, 2026, a giant wall of water, mud, ice, and rock rolled through a narrow valley on the border of Nepal and Tibet. There was no rain, no gradual rise in the river—the disaster came almost out of nowhere. In this video, we take a step-by-step look at what really happened: from the collapse of a glacier on the Langtang-Lirung slope to why traditional warning systems were powerless, and what everyone living under glaciers should learn from it. Sources of information: Glacier collapse caused Nepal's deadly flash flood — Nature — https://www.nature.com/articles/d4158... Collapsed glacier likely caused devastating Nepal-Tibet floods, scientists say — BBC News — https://www.bbc.com/news/articles/cly... What caused the catastrophic flood in Nepal and Tibet - and how does a glacier collapse? — The Guardian — https://www.theguardian.com/world/202... Mapping how a glacier collapse triggered a deadly landslide and flooding along the Nepal-China border — Reuters — https://www.reuters.com/graphics/NEPA... 2026 Nepal Debris Avalanche and Flash Flood — U.S. Geological Survey (USGS) — https://www.usgs.gov/programs/landsli... Ice avalanche, debris lake may have triggered Bhotekoshi flood — The Kathmandu Post — https://kathmandupost.com/national/20... Flood damages at least 19 bridges, 40 km of roads along Trishuli — OnlineKhabar English — https://english.onlinekhabar.com/floo... The glacier collapse that killed hundreds in Nepal was decades in the making — The Independent — https://www.independent.co.uk/climate... Why Nepal faces another flood threat from a new lake on China border — Al Jazeera — https://www.aljazeera.com/news/2026/8... Glacial Lakes and Glacial Lake Outburst Floods in Nepal — ICIMOD — https://lib.icimod.org/records/2kqn5-... This video is for educational and popular science purposes. We examine the natural mechanism of the disaster to understand the causes and ways to protect ourselves. The data on the injured, dead and missing are preliminary, given as of the time of preparation of the material and may be revised. The video does not contain scenes of violence and is aimed at raising awareness about mountain dangers. Timecodes: 00:00 — Disaster in a matter of minutes 01:08 — What we will analyze in the video 01:46 — Morning of August 26: Water rose by 10 meters 02:48 — Scale of destruction: bridges, roads, hydroelectric power plants 03:19 — Geography: how the disaster moved through the valley 04:00 — International tragedy: pilgrims and the missing 05:22 — The source of the disaster: Langtang-Lirung glacier 07:05 — Why glaciers are melting 07:56 — Mechanism: ice-rock avalanche 09:41 — How a mountain became a flood: a natural disaster 10:31 — Why it is not technically a tsunami 11:24 — Seismic signal: a mountain, not an earthquake 12:33 — Why people were not warned 13:47 — Will it happen again elsewhere: the geography of risk 15:17 — Hidden dangers: 3624 glacial lakes 16:06 — Lessons from the past: 2025, Uttarakhand, Andes 17:57 — Is something really changing in the mountains 18:47 — Can the tragedy be averted 20:02 — What to do for a specific person 21:33 — Consequences and the main conclusion