Off-Nadir Delta

At Least 160 Dead, Hundreds Missing After Flood Devastates Nepal–Tibet Border

Titles and summaries are AI-extracted from news reporting; every source is linked below. Event id 1320107258.

Where
Rasuwa district, Nepal, Gyirong Port, TibetSomewhere in Rasuwa district, Nepal, Gyirong Port, Tibet — an area about 67 km across. The coordinate is that area's centre, not the event site.
When
Occurred 2023-08-09basis: stated_in_articleFirst reported 2026-08-26 · last update 2026-09-02
Sourcing
26 articles26 reports across 22 outlets · independence not establishedverification: corroborated
Satellite observability
observableRadar coverageThis signal carries no sensor assessment of its own, so this is the default for its category rather than a recommendation about this event.

What remains unresolved

  • coordinate_not_search_ready
  • imaging_target_missing
  • sensor_plan_missing
  • quality_not_passed
  • geo_not_ready
  • collection_plan_incomplete
  • multi_target_unresolved

Timeline

  • 2026-08-26new_eventA new event has been reported.
  • 2026-08-26casualty_count_correctedThe reported number killed was revised down from 19 to 17.
  • 2026-08-27casualty_count_raisedThe reported number killed rose from 17 to 95.
  • 2026-08-27attribution_statedThis event is now attributed to NPLGOV.
  • 2026-08-27severity_escalatedAssessed severity rose from 9 to 10.
  • 2026-08-27corroboration_increasedIndependent sources rose from 3 to 7.
  • 2026-08-27casualty_count_correctedThe reported number killed was revised down from 95 to 0.
  • 2026-08-27corroboration_increasedIndependent sources rose from 7 to 8.
  • 2026-08-27casualty_count_raisedThe reported number killed rose from 0 to 100.
  • 2026-08-27corroboration_increasedIndependent sources rose from 8 to 9.
  • 2026-08-27casualty_count_raisedThe reported number killed rose from 100 to 300.
  • 2026-08-27corroboration_increasedIndependent sources rose from 9 to 10.
  • 2026-08-27casualty_count_raisedThe reported number killed rose from 300 to 350.
  • 2026-08-27corroboration_increasedIndependent sources rose from 10 to 11.
  • 2026-08-27casualty_count_raisedThe reported number killed rose from 350 to 389.
  • 2026-08-27casualty_count_raisedThe reported number injured rose from 0 to 466.
  • 2026-08-27corroboration_increasedIndependent sources rose from 11 to 12.
  • 2026-08-27casualty_count_correctedThe reported number killed was revised down from 389 to 0.
  • 2026-08-27casualty_count_correctedThe reported number injured was revised down from 466 to 0.
  • 2026-08-27attribution_changedAttribution changed from NPLGOV to nepGOV.

Sources

Related events

  • Himalayan Tsunami in NepalGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-09-02
  • Bhotekoshi FloodGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-09-01
  • Himalayan floodsGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-26
  • Nepal FloodingGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2023-08-26
  • Nepal-China floodsHappened at this location 2 d after this event. Order in time only — it is not established as a consequence. · 2026-08-28
  • Nepal FloodHappened at this location 2 d after this event. Order in time only — it is not established as a consequence. · 2026-08-28
  • Nepal-China border disasterHappened at this location 1 d after this event. Order in time only — it is not established as a consequence. · 2026-08-27
  • Fresh flood risks in the HimalayasHappened at this location 1 d after this event. Order in time only — it is not established as a consequence. · 2026-08-27
  • Glacier-driven Nepal flood shows mounting risks in warming HimalayasReported 12 km away and 0 h after. No established relationship beyond proximity. · 2026-08-26
  • Nepal Floods Survival and ReunionReported 36 km away and 0 h after. No established relationship beyond proximity. · 2026-08-26

Reproduce over the API (free endpoint)

bash
curl "https://offnadir-delta.com/api/v1/events/1320107258/thread" \
  -H "Authorization: Bearer ond_YOUR_API_KEY"

For situational awareness only — not for tracking or targeting individuals. Every claim above links to its reporting; satellite fields are the same values the API serves.