City vs city
Harrisville vs Logan, UT
Harrisville currently scores 4 points higher overall than Logan, 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
Harrisville: 25/100 · Logan: 21/100
Harrisville is 4 points higher.
Flood
Harrisville: 28/100 · Logan: 30/100
Logan is 2 points higher.
Harrisville: FEMA NFHL flood zones: 9 features intersect this tile.
Logan: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Harrisville: 12/100 · Logan: 12/100
No gap.
Harrisville: Wind exposure derived from ingested design wind / climatology tiles.
Logan: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harrisville: 15/100 · Logan: 10/100
Harrisville is 5 points higher.
Harrisville: Lightning exposure derived from ingested climatology tiles.
Logan: Lightning exposure derived from ingested climatology tiles.
Tornado
Harrisville: 12/100 · Logan: 4/100
Harrisville is 8 points higher.
Harrisville: Tornado risk derived from NOAA SPC historical reports.
Logan: Tornado risk derived from NOAA SPC historical reports.
Hail
Harrisville: 17/100 · Logan: 16/100
Harrisville is 1 points higher.
Harrisville: Hail risk derived from NOAA SPC historical reports.
Logan: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harrisville: Unavailable · Logan: Unavailable
A score difference cannot be calculated without both sources.
Harrisville: Storm surge model is not available for this location yet.
Logan: Storm surge model is not available for this location yet.
Wildfire
Harrisville: 63/100 · Logan: 57/100
Harrisville is 6 points higher.
Harrisville: Wildfire exposure derived from ingested fire potential tiles.
Logan: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Harrisville: 27/100 · Logan: 21/100
Harrisville is 6 points higher.
Harrisville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Logan: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.