"MP18 is notable for its rapid expansion—over 7,600 acres in just over a month—and the substantial resources deployed, with personnel numbers exceeding 1,400 at the height of the incident. The fire’s progression from extreme behavior to full containment illustrates the challenges of managing large, human‑caused wildfires in remote areas."
The MP18 wildfire, located 2 miles north of Hoopa in Humboldt County, California, was first discovered on August 7, 2026. By the latest update on September 17, 2026, the fire had burned 7,601 acres and was 100% contained, with the BIA as the jurisdictional agency and a human cause identified. The blaze grew rapidly in its first week, expanding from 374 acres on August 9 to 7,114 acres by August 19, while containment remained low until August 21 when it jumped to 71% and reached 100% by mid-September. Personnel peaked at 1,434 on August 15 and then gradually decreased as the fire was brought under control. Estimated costs climbed steadily, reaching $61.2 million by the final report.
Official source description: 2 Miles N from Hoopa, CA
Minimal; Smoldering; Isolated Torching
The fire is now fully contained and in a minimal, smoldering state. Residents in the surrounding area should remain vigilant for any potential flare‑ups, but general wildfire safety precautions apply.
IRWIN ID: {3BF54E17-87D6-40E1-B913-81B97515E1D5}
Discovered: Aug 7, 2026
Cause: Human
Managing Agency: BIA
Est. Cost to Date: $61,200,000
Coordinates: 41.1331, -123.685
Other wildfires that have recently been contained or dropped from official tracking in CA.
The MP18 Fire has burned 7,599 acres as of September 17, 2026.
Yes, the MP18 Fire is fully contained (100%).
The official cause has been listed as: Human.
The MP18 Fire is burning in Humboldt, CA.
Yes, as of the latest official update, the MP18 Fire remains active.
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