City vs city
Erma vs Ewing Township, NJ
Ewing Township currently scores 12 points higher overall than Erma, with the largest gap in tornado.
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
Erma: 38/100 · Ewing Township: 50/100
Ewing Township is 12 points higher.
Flood
Erma: 69/100 · Ewing Township: 6/100
Erma is 63 points higher.
Erma: FEMA NFHL flood zones: 7 features intersect this tile.
Ewing Township: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Erma: 30/100 · Ewing Township: 22/100
Erma is 8 points higher.
Erma: Wind exposure derived from ingested design wind / climatology tiles.
Ewing Township: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Erma: 17/100 · Ewing Township: 24/100
Ewing Township is 7 points higher.
Erma: Lightning exposure derived from ingested climatology tiles.
Ewing Township: Lightning exposure derived from ingested climatology tiles.
Tornado
Erma: 0/100 · Ewing Township: 73/100
Ewing Township is 73 points higher.
Erma: Tornado risk derived from NOAA SPC historical reports.
Ewing Township: Tornado risk derived from NOAA SPC historical reports.
Hail
Erma: 12/100 · Ewing Township: 75/100
Ewing Township is 63 points higher.
Erma: Hail risk derived from NOAA SPC historical reports.
Ewing Township: Hail risk derived from NOAA SPC historical reports.
Storm surge
Erma: 98/100 · Ewing Township: 92/100
Erma is 6 points higher.
Erma: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Ewing Township: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Erma: 7/100 · Ewing Township: 64/100
Ewing Township is 57 points higher.
Erma: Wildfire exposure derived from ingested fire potential tiles.
Ewing Township: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Erma: 33/100 · Ewing Township: 46/100
Ewing Township is 13 points higher.
Erma: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Ewing Township: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.