Riosa Fire
Active
Placer County, California · Discovered October 7, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 2 hours ago · Official incident page
Riosa Fire
The Riosa Fire fire has burned 46 acres in Placer County, California. Officials have not reported a containment figure yet. Air quality near the fire is good (AQI 41).
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Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
Grew 21 acres in about an hour to 46 acres
2 hours ago · October 7, 2026Now mapped at 25 acres
4 hours ago · October 7, 2026Firefighting aircraft on scene (N205BT)
4 hours ago · October 7, 2026Fire first listed in official incident feeds
4 hours ago · October 7, 2026
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 10/7/2026, 10:09:06 PM | 46 acres | - |
| 10/7/2026, 8:49:04 PM | 25 acres | - |
| 10/7/2026, 8:19:23 PM | 0.0 acres | - |
Recorded by Fire Nearby each time upstream data changes.
About this data
Fire Nearby aggregates official incident data and shows exactly when each value was last updated. For evacuation decisions, always follow instructions from local emergency officials and check county emergency management channels.