350 5TH AVE, NEW YORK, NY, 10118
Every section below is checked live against official public sources for this exact location — satellite ground-motion (InSAR), FEMA flood and risk layers, USGS earthquake hazard, USFS wildfire, EPA environmental records, and NOAA coastal data. Generated 2026-09-21. Context before you commit — a screening, not a survey.
Plain-English summary
This property risk screening for 350 5TH AVE, NEW YORK, NY, 10118, indicates relatively stable ground conditions, with measured motion showing a sinking trend, but within a "green" risk band, suggesting no notable ground movement detected. The area is classified as moderate-to-low risk for flooding. However, sea level rise and local ground motion combine for an effective exposure of about 4.3 mm/yr. A high-consequence dam is nearby, but its condition is rated "Fair". This screening is not a structural guarantee; a licensed geotechnical engineer should be consulted before any decision. The absence of certain data does not imply stability or safety. Further evaluation is recommended to fully understand potential risks.
Ground motion (InSAR)
Millimetres per year of vertical ground motion from satellite radar (InSAR). Negative is sinking. Screening practice treats within ±3 mm/yr as unremarkable, 3–10 as notable, and faster than 10 mm/yr as significant. The dot is the worst reading near the parcel — the conservative figure to plan around.
Where this parcel sits among all measured locations in the surrounding area — 70% of them are sinking more slowly than here. A high number means the movement is locally unusual, not just regional.
| Rate at nearest measurement | -1.052 mm/yr |
| Worst within ~150 m | -1.399 mm/yr |
| Trend | falling |
| Source | Ohenhen (2025) NYC-LI VLM, Zenodo 10.5281/zenodo.17644691, CC-BY-4.0 |
Flood & water
FEMA flood zone: Zone X — Moderate-to-low risk area.
Sea-level exposure: the tide gauge at The Battery (6 km away) shows relative sea level rising 2.94 mm/yr. Combined with ground motion here, effective local exposure is about 4.3 mm/yr (screening estimate).
The sea rising and the land sinking add up: a tide gauge trend of 2.94 mm/yr at The Battery, plus about 1.4 mm/yr of local ground sinking, gives an effective local rise of roughly 4.3 mm/yr. Screening estimate — a coastal engineer models the exact figure.
Dam proximity: Hackensack Res. # 2 (Weehawken) Dam (Passaic River) is 4.1 km away — high-hazard classification, condition rated "Fair". Hazard class describes failure consequences, not likelihood (USACE NID).
Natural hazards
Wildfire hazard: rated non-burnable (developed) at this address (USFS Wildfire Hazard Potential 2023, 30 m).
Sinkhole setting: Low No soluble rock mapped under this point. The USGS national karst compilation maps no carbonate or evaporite rock, and no pseudokarst, at this point. Dissolution sinkholes need soluble rock; burst mains, old fill and mine workings can still open a hole anywhere and are not on this map. USGS national karst map, 2014; setting, not a prediction.
Earthquake hazard: moderate — peak ground acceleration 0.179 g at the standard 2%-in-50-years benchmark (USGS National Seismic Hazard Model).
Shaking hazard band from the USGS National Seismic Hazard Model — the chance of strong ground acceleration over a 50-year window.
FEMA National Risk Index: New York County rates relatively high overall (score 98.8/100 — a composite of 18 natural hazards, expected losses, and community resilience).
County-level composite of 18 natural hazards, expected annual loss, and community resilience (FEMA NRI). Area context, not a per-property score.
Environmental
Superfund proximity: MEEKER AVENUE PLUME (BROOKLYN) is 4.8 km away — Currently on the Final NPL. EPA-reported location; may be approximate.
Petroleum releases: 66 leaking underground storage tank releases recorded within 1.5 km, nearest ~57 m (EPA UST Finder). Most are historic and remediated — relevant context for environmental due diligence.
Novarly Parcel · official public data, read properly · parcel.novarly.com
Screening from public data — satellite ground motion (InSAR), FEMA (National Flood Hazard Layer, National Risk Index), USGS (National Seismic Hazard Model), USFS (Wildfire Hazard Potential), EPA (Superfund/SEMS, UST Finder), NOAA (shoreline, tide gauges) and USACE (National Inventory of Dams). US federal data is public domain. This is a screening — not a structural guarantee. For any purchase, lending, or construction decision, consult a licensed geotechnical or structural engineer. Generated 2026-09-21.