The Ring of Fire formed where the Pacific tectonic plate slides against or collides with surrounding tectonic plates.
Notes on verification
Confirmed by multiple authoritative geological sources (USGS, NOAA, Britannica, National Geographic) with consistent explanations of plate tectonics driving the Ring of Fire. [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=0.539 clusters=2 claim_tier=everyday]
Sources
- The Pacific Ocean—facts and information (seed:science_and_space)
- https://oceanexplorer.noaa.gov/ocean-fact/rof/ (corroboration)
- https://www.usgs.gov/faqs/what-ring-fire?page=1 (corroboration)