City vs city
Ketchikan vs Thorne Bay, AK
Ketchikan currently scores 31 points higher overall than Thorne Bay, with the largest gap in wind.
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
Ketchikan: 57/100 · Thorne Bay: 26/100
Ketchikan is 31 points higher.
Flood
Ketchikan: 65/100 · Thorne Bay: Unavailable
A score difference cannot be calculated without both sources.
Ketchikan: FEMA NFHL flood zones: 2 features intersect this tile.
Thorne Bay: Flood model is not available for this location yet.
Wind
Ketchikan: 48/100 · Thorne Bay: 51/100
Thorne Bay is 3 points higher.
Ketchikan: Wind exposure derived from ingested design wind / climatology tiles.
Thorne Bay: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ketchikan: 0/100 · Thorne Bay: 0/100
No gap.
Ketchikan: Lightning exposure derived from ingested climatology tiles.
Thorne Bay: Lightning exposure derived from ingested climatology tiles.
Tornado
Ketchikan: Unavailable · Thorne Bay: Unavailable
A score difference cannot be calculated without both sources.
Ketchikan: Tornado model is not available for this location yet.
Thorne Bay: Tornado model is not available for this location yet.
Hail
Ketchikan: Unavailable · Thorne Bay: Unavailable
A score difference cannot be calculated without both sources.
Ketchikan: Hail model is not available for this location yet.
Thorne Bay: Hail model is not available for this location yet.
Storm surge
Ketchikan: Unavailable · Thorne Bay: Unavailable
A score difference cannot be calculated without both sources.
Ketchikan: Storm surge model is not available for this location yet.
Thorne Bay: Storm surge model is not available for this location yet.
Wildfire
Ketchikan: Unavailable · Thorne Bay: Unavailable
A score difference cannot be calculated without both sources.
Ketchikan: Wildfire model is not available for this location yet.
Thorne Bay: Wildfire model is not available for this location yet.
Ingested air quality
Ketchikan: Unavailable · Thorne Bay: Unavailable
A score difference cannot be calculated without both sources.
Ketchikan: Air quality model is not available for this location yet.
Thorne Bay: Air quality model is not available for this location yet.