Restless Pacific · Interactive atlas
There is no scientific start or end—only a popular name for many distinct plate margins. We begin in New Zealand and travel clockwise as a storytelling convention.
The definition · GVP 5.3.6
The Smithsonian Global Volcanism Program currently identifies 688 Holocene volcanoes across 41 regions in its Pacific Ring of Fire grouping. It also cautions that the phrase is popular—not one connected geologic structure.
Read the Smithsonian definitionA clockwise convention
01 · Our narrative origin
We begin in Aotearoa by editorial choice, not geological law. The Pacific Plate descends westward along the Kermadec–Tonga trench, feeding an arc that includes Taupō and the submarine volcanoes north of New Zealand.
02 · Complicated margins
Island arcs bend around microplates and collision zones. The Philippines sits where several trenches and fault systems meet; Mayon’s near-symmetry is only the surface expression of a much less tidy setting.
03 · The long northern arc
The route turns through Japan and the Kuril–Kamchatka arc. Offshore subduction builds volcanic chains, while large earthquakes can abruptly displace the seafloor—as the 2011 Tōhoku event showed.
04 · Across the dateline
The Aleutian chain sweeps east into Alaska, then the margin changes character along Cascadia. Volcanic peaks sit inland of the trench; transform motion dominates farther south along California.
05 · A continental chain
The Cocos Plate sinks beneath North America and the Caribbean, sustaining a dense line of frequently active volcanoes from central Mexico through Guatemala and beyond.
06 · The eastern return
Along South America, the Nazca Plate descends beneath the continent. Gaps and clusters in Andean volcanism reflect changes in slab angle, crust, and magma pathways—not a continuous wall of fire.
Definition case study · Indonesia
Popular maps often sweep Indonesia into the Ring of Fire. Smithsonian’s current PROF definition largely does not. Indonesia belongs to the broader story of Pacific-adjacent tectonics, yet counting its volcanoes as part of the 688 would merge two different definitions.
This atlas preserves both concepts: versioned Smithsonian membership and a broader editorial route.
See the inclusion method →Your turn