City vs city
Erie vs Rock Island, IL
Rock Island currently scores 1 points higher overall than Erie, with the largest gap in hail.
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
Erie: 39/100 · Rock Island: 40/100
Rock Island is 1 points higher.
Flood
Erie: 95/100 · Rock Island: 48/100
Erie is 47 points higher.
Erie: FEMA NFHL flood zones: 6 features intersect this tile.
Rock Island: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Erie: 17/100 · Rock Island: 17/100
No gap.
Erie: Wind exposure derived from ingested design wind / climatology tiles.
Rock Island: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Erie: 37/100 · Rock Island: 42/100
Rock Island is 5 points higher.
Erie: Lightning exposure derived from ingested climatology tiles.
Rock Island: Lightning exposure derived from ingested climatology tiles.
Tornado
Erie: 23/100 · Rock Island: 15/100
Erie is 8 points higher.
Erie: Tornado risk derived from NOAA SPC historical reports.
Rock Island: Tornado risk derived from NOAA SPC historical reports.
Hail
Erie: 38/100 · Rock Island: 100/100
Rock Island is 62 points higher.
Erie: Hail risk derived from NOAA SPC historical reports.
Rock Island: Hail risk derived from NOAA SPC historical reports.
Storm surge
Erie: Unavailable · Rock Island: Unavailable
A score difference cannot be calculated without both sources.
Erie: Storm surge model is not available for this location yet.
Rock Island: Storm surge model is not available for this location yet.
Wildfire
Erie: 31/100 · Rock Island: 33/100
Rock Island is 2 points higher.
Erie: Wildfire exposure derived from ingested fire potential tiles.
Rock Island: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Erie: 30/100 · Rock Island: 26/100
Erie is 4 points higher.
Erie: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rock Island: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.