City vs city
Quartz Hill vs San Francisco, CA
Quartz Hill and San Francisco are tied on overall score, with the biggest factor difference in wildfire.
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
Quartz Hill: 25/100 · San Francisco: 25/100
No gap.
Flood
Quartz Hill: 42/100 · San Francisco: 26/100
Quartz Hill is 16 points higher.
Quartz Hill: FEMA NFHL flood zones: 5 features intersect this tile.
San Francisco: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Quartz Hill: 5/100 · San Francisco: 2/100
Quartz Hill is 3 points higher.
Quartz Hill: Wind exposure derived from ingested design wind / climatology tiles.
San Francisco: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Quartz Hill: 2/100 · San Francisco: 0/100
Quartz Hill is 2 points higher.
Quartz Hill: Lightning exposure derived from ingested climatology tiles.
San Francisco: Lightning exposure derived from ingested climatology tiles.
Tornado
Quartz Hill: 0/100 · San Francisco: 0/100
No gap.
Quartz Hill: Tornado risk derived from NOAA SPC historical reports.
San Francisco: Tornado risk derived from NOAA SPC historical reports.
Hail
Quartz Hill: 2/100 · San Francisco: 18/100
San Francisco is 16 points higher.
Quartz Hill: Hail risk derived from NOAA SPC historical reports.
San Francisco: Hail risk derived from NOAA SPC historical reports.
Storm surge
Quartz Hill: Unavailable · San Francisco: Unavailable
A score difference cannot be calculated without both sources.
Quartz Hill: Storm surge model is not available for this location yet.
San Francisco: Storm surge model is not available for this location yet.
Wildfire
Quartz Hill: 75/100 · San Francisco: 52/100
Quartz Hill is 23 points higher.
Quartz Hill: Wildfire exposure derived from ingested fire potential tiles.
San Francisco: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Quartz Hill: 22/100 · San Francisco: 25/100
San Francisco is 3 points higher.
Quartz Hill: 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 Francisco: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.