Peak Cumulative (LOS)
-3.8 cm
Vertical Est. (46.2°)
-5.5 cm
3-Ref Sensitivity
[-7.9, -3.3] cm LOS
Rate (cm / 100 days)
-3.2 cm/100d
Annualized est.: -11.6 cm/yr
Latest Pair & Cumulative Summary
- Latest Consecutive Pair Step: -0.51 cm LOS (2026-10-03 to 2026-10-15 at p01: 30.013N 66.819E; cumulative at point: -3.82 cm)
- Affected Population (GHSL GHS-POP E2025, 108d eq., ≥ 0.60 cm 2σ): 210 residents (< -2 cm), 8 residents across 0.24 km² (< -5 cm).
Top 3 Most-Subsiding Areas
| Rank | 1 km Block Center (Lat, Lon) | Cumulative LOS | Rate |
|---|---|---|---|
| #1 | 30.0127, 66.8189 | -3.82 cm | -3.18 cm/100d |
| #2 | 30.0091, 67.1963 | -3.09 cm | -2.58 cm/100d |
| #3 | 30.1581, 67.1180 | -3.07 cm | -2.55 cm/100d |
Top 5 At-Risk Infrastructure Segments
Infrastructure corridor ranking (OSM canal/road overlay) has not been computed for this regional subset yet.
GNSS Comparison & Calibration Status
Continuous GNSS time-series validation was not bundled for this regional subset.
Cumulative Displacement Map
What This Means
- Ground in Quetta (Pakistan) subsided up to -3.8 cm LOS (-3.2 cm/100d) between 2026-06-17 and 2026-10-15, consistent with active seasonal compaction.
- About 210 residents live on ground sinking faster than 2 cm per 108 days (and 8 residents across 0.24 km2 faster than 5 cm per 108 days, above the 0.60 cm 2-sigma noise floor).
- No local GNSS or canal-tilt overlay is bundled for this subset; field inspection and local piezometer records are needed to confirm infrastructure impacts.
Calibration & Quality Notice (PROVISIONAL): NISAR data are provisional. Calibration and validation are carried out by the NISAR project (NASA-JPL and ISRO), not by our team.
Sources: NASA-ISRO NISAR L2 GUNW (CRID P05023 via ASF DAAC); GHSL GHS-POP E2025 R2023A (JRC, CC BY 4.0); Nevada Geodetic Laboratory GNSS; OpenStreetMap (ODbL).
Sources: NASA-ISRO NISAR L2 GUNW (CRID P05023 via ASF DAAC); GHSL GHS-POP E2025 R2023A (JRC, CC BY 4.0); Nevada Geodetic Laboratory GNSS; OpenStreetMap (ODbL).