Dome Fire Reaches 6,632 Acres in Yosemite, 40% Contained as of Oct. 3
The Dome Fire has burned 6,632 acres in Yosemite National Park and is 40% contained as of Oct. 3, with 765 personnel assigned; Glacier Point Road stays closed.
CA
In 2025, fire departments serving Rialto responded to 41 fire and hazmat incidents — from cooking fires to gas leaks to a single $100K building blaze. Here's the full picture.
Building fires lead by count. Building fires lead by dollars. Together the top five categories make up about 71% of all calls.
Jan peaks. Jul dips. Watch for the typical fall climb starting in October.
235 incidents 2021–2025. Peak year was 2023. $618K cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 39 | — | |
| 2022 | 49 | +25.6% | |
| 2023 | 53 | +8.2% | |
| 2024 | 53 | +0.0% | |
| 2025 | 41 | -22.6% |
For the 10 building fires Rialto departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 61 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 35 | 57.4% | |
| 2 | Engine area, running gear, wheel area | 12 | 19.7% | |
| 3 | Outside area, other | 3 | 4.9% | |
| 4 | Other | 2 | 3.3% | |
| 5 | Bedroom - < 5 persons; included are jail or prison | 2 | 3.3% | |
| 6 | Common room, den, family room, living room, lounge | 1 | 1.6% | |
| 7 | Storage area, other | 1 | 1.6% | |
| 8 | Attic: vacant, crawl space above top story, cupola | 1 | 1.6% | |
| 9 | Vehicle area, other | 1 | 1.6% | |
| 10 | Exterior, exposed surface | 1 | 1.6% | |
| 11 | All other areas | 2 | 3.3% |
NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Rialto mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 48 | 78.7% | |
| 2 | Radiated, conducted heat from operating equipment | 4 | 6.6% | |
| 3 | Heat from powered equipment, other | 2 | 3.3% | |
| 4 | Hot or smoldering object, other | 2 | 3.3% | |
| 5 | Heat from undetermined smoking material | 2 | 3.3% | |
| 6 | Heat, spark from friction | 1 | 1.6% | |
| 7 | Explosive, fireworks, other | 1 | 1.6% | |
| 8 | Fireworks | 1 | 1.6% |
Largest single-incident property losses reported by Rialto departments in 2025. These 4 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $100,000 | Building fires | Significant | Investigated |
| 2 | $20,000 | Building fires | Significant | Investigated |
| 3 | $10,000 | Passenger vehicle fire | Significant | Investigated |
| 4 | $500 | Outside rubbish fire, other | Significant | Investigated |
Per-capita rates let us compare apples to apples. Rialto sits below the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 1,087,081 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2009 | Arson/incendiarism | 160,371 | 46.5 mi | |
| 2020 | Missing data/not specified/undetermined | 115,997 | 33.8 mi | |
| 2003 | Arson/incendiarism | 91,281 | 8.5 mi | |
| 1999 | Missing data/not specified/undetermined | 65,000 | 17.9 mi | |
| 2006 | Natural | 61,700 | 49.6 mi | |
| 2003 | Arson/incendiarism | 59,788 | 6.3 mi | |
| 2015 | Missing data/not specified/undetermined | 51,000 | 28.1 mi | |
| 2006 | Arson/incendiarism | 40,200 | 38.7 mi | |
| 2002 | Arson/incendiarism | 37,240 | 24.1 mi | |
| 2016 | Missing data/not specified/undetermined | 36,274 | 10.9 mi | |
| 2020 | Equipment and vehicle use | 33,424 | 25.9 mi | |
| 2008 | Missing data/not specified/undetermined | 30,305 | 26.2 mi |
Top 8 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six California cities with population within ±25% of Rialto. Useful comparison targets — same state, similar size, different fire profile.
A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.
Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.