Novarly Parcel · Staten Island
Is Great Kills sinking?
What satellite radar actually measures across Great Kills — and what it means for your address.
-1.42 mm/yr
median ground motion
-8.12 mm/yr
fastest-sinking spot
3%
of measured spots moving ≥3 mm/yr
Across 690 measured locations in and around Great Kills, the median ground motion is -1.42 mm/yr (negative = sinking). The fastest-moving measured spot is subsiding at -8.12 mm/yr, and 3% of measured locations exceed the 3 mm/yr "notable" threshold. Rates vary block by block — check your exact address:
Screening only — not a structural guarantee. For any decision, consult a licensed geotechnical engineer.
More in Staten Island:
Statistics computed from Ohenhen (2025) NYC–Long Island vertical land motion (Zenodo doi:10.5281/zenodo.17644691, CC-BY-4.0). Screening only — see methodology.