City vs city
Alton vs East Alton, IL
East Alton currently scores 16 points higher overall than Alton, with the largest gap in flood.
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
Alton: 34/100 · East Alton: 50/100
East Alton is 16 points higher.
Flood
Alton: 0/100 · East Alton: 77/100
East Alton is 77 points higher.
Alton: FEMA NFHL flood zones: 0 features intersect this tile.
East Alton: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Alton: 16/100 · East Alton: 16/100
No gap.
Alton: Wind exposure derived from ingested design wind / climatology tiles.
East Alton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alton: 53/100 · East Alton: 48/100
Alton is 5 points higher.
Alton: Lightning exposure derived from ingested climatology tiles.
East Alton: Lightning exposure derived from ingested climatology tiles.
Tornado
Alton: 27/100 · East Alton: 46/100
East Alton is 19 points higher.
Alton: Tornado risk derived from NOAA SPC historical reports.
East Alton: Tornado risk derived from NOAA SPC historical reports.
Hail
Alton: 91/100 · East Alton: 99/100
East Alton is 8 points higher.
Alton: Hail risk derived from NOAA SPC historical reports.
East Alton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alton: Unavailable · East Alton: Unavailable
A score difference cannot be calculated without both sources.
Alton: Storm surge model is not available for this location yet.
East Alton: Storm surge model is not available for this location yet.
Wildfire
Alton: 16/100 · East Alton: 29/100
East Alton is 13 points higher.
Alton: Wildfire exposure derived from ingested fire potential tiles.
East Alton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alton: 35/100 · East Alton: 35/100
No gap.
Alton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
East Alton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.