Continuous broadband seismic waveforms and regional earthquake screening for the 26 August 2026 cascade — IRIS Station KKN & USGS ComCat

Outcome
Completed
Search date
Source
IRIS / EarthScope Consortium & United States Geological Survey (USGS)
Reference
RUN-20260915-052
Aim
Capture open seismic waveform recordings near the Trishuli corridor to verify initiation timing of the rock-ice avalanche and assess co-seismic trigger hypotheses.
Source and interface
IRIS / EarthScope Consortium & United States Geological Survey (USGS) — IRIS FDSN Web Services / USGS Earthquake API
Search method
Query IRIS FDSN dataselect for Station KKN (Kakani, Nepal; net=IC, sta=KKN, cha=BHZ,BHN,BHE) for 2026-08-26; query USGS ComCat API for all seismic events within 250 km radius of Langtang for August 2026.
Criteria
CriterionNetwork IC, Station KKN, 2026-08-26 UTC
CriterionUSGS ComCat radius 250 km from [28.21, 85.57], M >= 1.0.
Coverage
Continuous 3-component seismic waveform recording of the mass-movement signal and catalogued seismic events.
Stopping rule
Exhaust continuous waveform data for event day and all catalogued seismic events within search radius.
Result

2 seismological resources recovered across 4 assets: continuous miniSEED 3-component waveforms + StationXML for Station KKN, and USGS ComCat regional event ledger + metadata.

Resource links below show the completed assessment outcomes. The search result above records discovery at the search date.

NK.KKN Kakani broadband station: event waveform request and station metadata

USGS Comprehensive Earthquake Catalog (ComCat) — Co-seismic screening extract for the central Himalaya (August 2026)