Off-Nadir Delta

Glacial lake outburst floods Bhutan's Gasa district, damaging roads and triggering downstream alerts

Titles and summaries are AI-extracted from news reporting; every source is linked below. Event id 83ddf692-bd84-43de-a824-229734e24803.

Where
Thimphuresolved to locality27.471, 89.634
When
Occurrence date not stated by reportingFirst reported 2026-10-30 · last update 2026-11-03
Sourcing
42 reports42 reports across 27 outlets · independence not established
How far this got
localizednamed facility unresolvedRadar coverage

Summary

A glacial lake outburst flood from Shintaphu Lake in Bhutan's Gasa district on October 29 sent water and debris down the Mochhu and Sankosh river systems. Reports describe damage to the Punakha-Gasa Highway, bridges, the Gasa Tshachu hot spring facilities and a solar irrigation system, and flood debris covers part of the highway. Flood alerts were issued in Assam and West Bengal, with Dhubri, Kokrajhar and Alipurduar placed on high alert. Officials are watching a temporary lake formed downstream at Taktsemakhang, and a further outburst has not been ruled out. Accounts differ on the size of the water volume still held upstream. Reports on livestock losses in the area vary, and a figure of 140 deaths in one report is not supported by the others.

What imagery could confirm

Which satellite to use, what to look for and why. Part of the event detail on Pro.

What remains unresolved

  • named facility unresolved

Timeline

54 recorded change(s). The ledger starts when this event was first folded: the initial observation is not recorded as a change, so an empty timeline means nothing has moved since, not that nothing is known.

  • 2026-11-11location levelour measurementadmin1 → localityfinest location resolved

1 more change(s) — the values are part of the event detail on paid plans. 52 change(s) before the history shown here.

Sources

Grouped by outlet. Syndication is not collapsed, so several outlets can carry one wire story — the count is breadth of carriage, not independent confirmation.

42 reports in all; the full list with the facts taken from each is part of the event detail on Pro.

Related events

0 related event(s) and 12 place(s) or facilities — the same facility, place, actor or campaign. Part of the event detail on Pro.

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