The Pacific Ocean's Ring of Fire contains a chain of volcanoes roughly 25,000 miles long.
Notes on verification
Confirmed by NOAA, Wikipedia, and Britannica with consistent ~25,000 mile (40,000 km) figure and multiple corroborating sources. [cascade flags: aggregator_dropped_primary_exists,wikipedia_dropped_other_sources_exist | tier=unverified indep_score=0.5 clusters=1 claim_tier=everyday] [kind-backfill 2026-09-15: kind=empirical eligibility=medium] [harvest 2026-09-25: +4 source(s) on new hosts; tier unverified->silver indep=0.867 clusters=3]
Sources
- The Pacific Ocean—facts and information (seed:science_and_space)
- https://oceanexplorer.noaa.gov/ocean-fact/rof/ (corroboration)
- https://www.foxweather.com/learn/understanding-pacific-ring-fire-where-earthquakes-volcanoes-meet (corroboration)
- https://www.britannica.com/place/Ring-of-Fire (corroboration)
- https://en.wikipedia.org/wiki/Ring_of_Fire (corroboration)
- https://www.earthdate.org/episodes/pacific-ring-of-fire (corroboration)