City vs city
Green Knoll vs Martinsville, NJ
Martinsville currently scores 2 points higher overall than Green Knoll, with the largest gap in wildfire.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Green Knoll: 26/100 · Martinsville: 28/100
Martinsville is 2 points higher.
Flood
Green Knoll: 17/100 · Martinsville: 21/100
Martinsville is 4 points higher.
Green Knoll: FEMA NFHL flood zones: 7 features intersect this tile.
Martinsville: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Green Knoll: 22/100 · Martinsville: 22/100
No gap.
Green Knoll: Wind exposure derived from ingested design wind / climatology tiles.
Martinsville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Green Knoll: 20/100 · Martinsville: 19/100
Green Knoll is 1 points higher.
Green Knoll: Lightning exposure derived from ingested climatology tiles.
Martinsville: Lightning exposure derived from ingested climatology tiles.
Tornado
Green Knoll: 4/100 · Martinsville: 0/100
Green Knoll is 4 points higher.
Green Knoll: Tornado risk derived from NOAA SPC historical reports.
Martinsville: Tornado risk derived from NOAA SPC historical reports.
Hail
Green Knoll: 17/100 · Martinsville: 13/100
Green Knoll is 4 points higher.
Green Knoll: Hail risk derived from NOAA SPC historical reports.
Martinsville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Green Knoll: Unavailable · Martinsville: Unavailable
A score difference cannot be calculated without both sources.
Green Knoll: Storm surge model is not available for this location yet.
Martinsville: Storm surge model is not available for this location yet.
Wildfire
Green Knoll: 62/100 · Martinsville: 54/100
Green Knoll is 8 points higher.
Green Knoll: Wildfire exposure derived from ingested fire potential tiles.
Martinsville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Green Knoll: 38/100 · Martinsville: 37/100
Green Knoll is 1 points higher.
Green Knoll: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Martinsville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.