Rapid Hazard Assessment Report (RHA Report No. NP3)

Rapid expert assessment of the source-area rock–ice avalanche, temporary river blockage, downstream flood propagation, exposure, infrastructure impacts, and continuing hazard potential following the 26 August event.

Status
Reviewed
Provider
HiRISK consortium
Resource type
Rapid Hazard Assessment
Evidence class
Expert Assessment

Identity and coverage

Catalogue identifier
res-6df41a16-d3d6-509b-98d5-72cdafbd1349
Persistent identifier
RHA Report No. NP3
Resource version
RHA Report No. NP3; last update 28 August 2026
Publication date
28 August 2026
Last updated
28 August 2026
Metadata reviewed
3 September 2026
Language
English
Geographic coverage
Lirung massif and Lhende catchment at the Nepal–China border, with the downstream Bhote Koshi–Trishuli corridor to Ghalchhi and beyond.
Bounding box (WGS 84)
Not stated
Temporal coverage
25 August 2026 to 28 August 2026; Event And Rapid Assessment
Themes
Rock–Ice Avalanche, Flood Propagation, Cryosphere, Geomorphology, Hydrology, Infrastructure, Exposure, Early Warning

Method and provenance

Production method
Regional experts interpreted post-event Planet and Landsat 9 imagery with pre-event imagery, ERA5 temperature context, OpenStreetMap/HOT exposure data, photographs, reported impacts, and published literature.
Provenance
Prepared by Q. Liu, A. Khatri, A. Lord, M. Ghouli, N. Thapa, J. Steiner, W. W. Immerzeel, and S. Allen and published through the HiRISK rapid-assessment series.
Validation
Preliminary Expert Assessment
Uncertainty
The report labels its process interpretation and exposure estimates as preliminary and notes uncertainty in failure depth, causal attribution, and evolving impact figures.
Limitations
A six-page rapid assessment assembled shortly after the event; it is not a field-validated inventory of the complete affected corridor.

Access and reuse

Access
Direct Open; open access route
Licence
Not verified
Redistribution
Redistribution not authorized
Catalogue status
Reviewed

Assets

Rapid Hazard Assessment Report (RHA Report No. NP3)

Asset bounding box not stated. Parent resource coverage: Lirung massif and Lhende catchment at the Nepal–China border, with the downstream Bhote Koshi–Trishuli corridor to Ghalchhi and beyond.

PDF · 1.1 MiB · Report · Reachable without registration

Open PDF Metadata assessed

Authoritative metadata sources

Spatial extent

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Recorded bounding box