City vs city
Alta vs San Diego, CA
Alta currently scores 21 points higher overall than San Diego, with the largest gap in ingested air quality.
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
Alta: 43/100 · San Diego: 22/100
Alta is 21 points higher.
Flood
Alta: 26/100 · San Diego: 39/100
San Diego is 13 points higher.
Alta: FEMA NFHL flood zones: 5 features intersect this tile.
San Diego: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Alta: 5/100 · San Diego: 6/100
San Diego is 1 points higher.
Alta: Wind exposure derived from ingested design wind / climatology tiles.
San Diego: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alta: 2/100 · San Diego: 1/100
Alta is 1 points higher.
Alta: Lightning exposure derived from ingested climatology tiles.
San Diego: Lightning exposure derived from ingested climatology tiles.
Tornado
Alta: 0/100 · San Diego: 12/100
San Diego is 12 points higher.
Alta: Tornado risk derived from NOAA SPC historical reports.
San Diego: Tornado risk derived from NOAA SPC historical reports.
Hail
Alta: 0/100 · San Diego: 5/100
San Diego is 5 points higher.
Alta: Hail risk derived from NOAA SPC historical reports.
San Diego: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alta: Unavailable · San Diego: Unavailable
A score difference cannot be calculated without both sources.
Alta: Storm surge model is not available for this location yet.
San Diego: Storm surge model is not available for this location yet.
Wildfire
Alta: 80/100 · San Diego: 69/100
Alta is 11 points higher.
Alta: Wildfire exposure derived from ingested fire potential tiles.
San Diego: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alta: 100/100 · San Diego: 24/100
Alta is 76 points higher.
Alta: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
San Diego: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.