City vs city
East Alton vs Glen Carbon, IL
East Alton currently scores 14 points higher overall than Glen Carbon, 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
East Alton: 50/100 · Glen Carbon: 36/100
East Alton is 14 points higher.
Flood
East Alton: 77/100 · Glen Carbon: Unavailable
A score difference cannot be calculated without both sources.
East Alton: FEMA NFHL flood zones: 5 features intersect this tile.
Glen Carbon: Flood model is not available for this location yet.
Wind
East Alton: 16/100 · Glen Carbon: 16/100
No gap.
East Alton: Wind exposure derived from ingested design wind / climatology tiles.
Glen Carbon: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
East Alton: 48/100 · Glen Carbon: 42/100
East Alton is 6 points higher.
East Alton: Lightning exposure derived from ingested climatology tiles.
Glen Carbon: Lightning exposure derived from ingested climatology tiles.
Tornado
East Alton: 46/100 · Glen Carbon: 35/100
East Alton is 11 points higher.
East Alton: Tornado risk derived from NOAA SPC historical reports.
Glen Carbon: Tornado risk derived from NOAA SPC historical reports.
Hail
East Alton: 99/100 · Glen Carbon: 100/100
Glen Carbon is 1 points higher.
East Alton: Hail risk derived from NOAA SPC historical reports.
Glen Carbon: Hail risk derived from NOAA SPC historical reports.
Storm surge
East Alton: Unavailable · Glen Carbon: Unavailable
A score difference cannot be calculated without both sources.
East Alton: Storm surge model is not available for this location yet.
Glen Carbon: Storm surge model is not available for this location yet.
Wildfire
East Alton: 29/100 · Glen Carbon: 29/100
No gap.
East Alton: Wildfire exposure derived from ingested fire potential tiles.
Glen Carbon: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
East Alton: 35/100 · Glen Carbon: 32/100
East Alton is 3 points higher.
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.
Glen Carbon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.