City vs city
Antioch vs Discovery Bay, CA
Discovery Bay currently scores 3 points higher overall than Antioch, 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
Antioch: 22/100 · Discovery Bay: 25/100
Discovery Bay is 3 points higher.
Flood
Antioch: 28/100 · Discovery Bay: 51/100
Discovery Bay is 23 points higher.
Antioch: FEMA NFHL flood zones: 12 features intersect this tile.
Discovery Bay: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Antioch: 3/100 · Discovery Bay: 3/100
No gap.
Antioch: Wind exposure derived from ingested design wind / climatology tiles.
Discovery Bay: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Antioch: 0/100 · Discovery Bay: 0/100
No gap.
Antioch: Lightning exposure derived from ingested climatology tiles.
Discovery Bay: Lightning exposure derived from ingested climatology tiles.
Tornado
Antioch: 8/100 · Discovery Bay: 4/100
Antioch is 4 points higher.
Antioch: Tornado risk derived from NOAA SPC historical reports.
Discovery Bay: Tornado risk derived from NOAA SPC historical reports.
Hail
Antioch: 1/100 · Discovery Bay: 5/100
Discovery Bay is 4 points higher.
Antioch: Hail risk derived from NOAA SPC historical reports.
Discovery Bay: Hail risk derived from NOAA SPC historical reports.
Storm surge
Antioch: Unavailable · Discovery Bay: Unavailable
A score difference cannot be calculated without both sources.
Antioch: Storm surge model is not available for this location yet.
Discovery Bay: Storm surge model is not available for this location yet.
Wildfire
Antioch: 67/100 · Discovery Bay: 62/100
Antioch is 5 points higher.
Antioch: Wildfire exposure derived from ingested fire potential tiles.
Discovery Bay: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Antioch: 25/100 · Discovery Bay: 26/100
Discovery Bay is 1 points higher.
Antioch: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Discovery Bay: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.