Geophysical Events
Geophysical Event

Nepal glacial collapse and debris flow

August 26, 2026 · 02:52 UTC
Nepal glacial collapse and debris flow
Magnitude
M 5.2
Location
55 km NW of Kodāri̇̄, Nepal
Coordinates
28.271, 85.515

A glacial collapse triggered a catastrophic debris flow and flood in Nepal near the China border. The glacial collapse and debris flow produced a magnitude 5.2 seismic event.

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Overview of region affected by the Bhote-Koshi Trishuli Flood. Black box marks the zoomed in region in the figure below where the flood initiated (purple star). Pink line is the China/Nepal border. Red outline is the watershed affected by the 2021 Melamchi Flood.

CLaSH StoryMap

This StoryMap from the Center for Land Surface Hazards (CLaSH) includes an overview of the debris flood event, including estimated flow rates and arrival times along the river.

storymaps.arcgis.com View
Centric circle ripples.

AP News

Collection of reporting from AP News on the Nepal floods. Initial reports state that over 390 were killed, with more than 1,400 still missing.

apnews.com View
Map of the landslide and flooding extent of the 2026 Nepal Debris Avalanche and Flash Flood.

USGS Landslide Event Page

Event summary from the USGS with initial findings on the debris avalanche and flash flood.

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