Yellowstone Caldera

E184842

active volcanic system caldera supervolcano

Yellowstone Caldera is a massive volcanic supervolcano in the Yellowstone region, renowned for its geothermal features and potential for extremely large, explosive eruptions.

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All labels observed (3)

Label	Occurrences
Yellowstone Caldera canonical	4
Yellowstone Caldera geothermal system	2
Yellowstone Caldera landscape	1

How this entity was disambiguated

This entity first appeared as the object of triple T1607806 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Yellowstone Caldera
Context triple: [Yellowstone National Park, knownFor, Yellowstone Caldera]

A. Long Valley Caldera
Long Valley Caldera is a large volcanic depression in eastern California known for its geothermal activity, seismic unrest, and proximity to the Sierra Nevada and Mammoth Lakes.
B. Yellowstone
Yellowstone is a popular contemporary American television drama series centered on a powerful ranching family in Montana, known for its intense conflicts over land, power, and legacy.
C. Valles Caldera
Valles Caldera is a large volcanic caldera in northern New Mexico known for its expansive grassland valleys, geothermal features, and rich geological and ecological significance.
D. River Calder
The River Calder is a major river in West Yorkshire, England, flowing through several industrial towns before joining the River Aire.
E. Garibaldi Lake volcanic field
Garibaldi Lake volcanic field is a volcanic region in southwestern British Columbia, Canada, known for its stratovolcanoes, lava domes, and extensive Pleistocene to Holocene volcanic activity.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Yellowstone Caldera
Target entity description: Yellowstone Caldera is a massive volcanic supervolcano in the Yellowstone region, renowned for its geothermal features and potential for extremely large, explosive eruptions.

A. Long Valley Caldera
Long Valley Caldera is a large volcanic depression in eastern California known for its geothermal activity, seismic unrest, and proximity to the Sierra Nevada and Mammoth Lakes.
B. Yellowstone
Yellowstone is a popular contemporary American television drama series centered on a powerful ranching family in Montana, known for its intense conflicts over land, power, and legacy.
C. Valles Caldera
Valles Caldera is a large volcanic caldera in northern New Mexico known for its expansive grassland valleys, geothermal features, and rich geological and ecological significance.
D. River Calder
The River Calder is a major river in West Yorkshire, England, flowing through several industrial towns before joining the River Aire.
E. Garibaldi Lake volcanic field
Garibaldi Lake volcanic field is a volcanic region in southwestern British Columbia, Canada, known for its stratovolcanoes, lava domes, and extensive Pleistocene to Holocene volcanic activity.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	active volcanic system ⓘ caldera ⓘ supervolcano ⓘ
age	current caldera formed about 640000 years ago ⓘ
associatedWith	Yellowstone hotspot track ⓘ
contains	Grand Prismatic Spring ⓘ Norris Geyser Basin ⓘ Old Faithful geyser ⓘ Upper Geyser Basin ⓘ
country	United States of America ⓘ
formedBy	explosive volcanic eruption ⓘ
governedBy	National Park Service ⓘ surface form: U.S. National Park Service
hasArea	approximately 4000 square kilometers ⓘ
hasEruptionType	explosive ⓘ plinian ⓘ
hasEruptionVolume	over 1000 cubic kilometers for largest eruptions ⓘ
hasGeothermalFeature	fumaroles ⓘ geysers ⓘ hot springs ⓘ mud pots ⓘ
hasKnownSupereruptions	three in the last 2.1 million years ⓘ
hasLength	approximately 55 kilometers ⓘ
hasMagmaComposition	silicic ⓘ
hasNearbyCity	Jackson, Wyoming ⓘ West Yellowstone, Montana ⓘ
hasRecentActivity	changes in hydrothermal systems ⓘ frequent small earthquakes ⓘ ground deformation ⓘ
hasRockType	rhyolite ⓘ tuff ⓘ
hasVEI	8 for largest eruptions ⓘ
hasVolcanicField	Yellowstone Plateau ⓘ surface form: Yellowstone Plateau volcanic field
hasWidth	approximately 72 kilometers ⓘ
isTouristAttraction	true ⓘ
lastMajorEruption	about 640000 years ago ⓘ
locatedIn	United States of America ⓘ surface form: United States Wyoming ⓘ Yellowstone National Park ⓘ
monitoredBy	United States Geological Survey ⓘ Yellowstone Volcano Observatory ⓘ
overlies	Yellowstone mantle plume ⓘ
partOf	Yellowstone Plateau ⓘ Yellowstone hotspot track ⓘ surface form: Yellowstone hotspot
previousCalderaFormingEruption	Huckleberry Ridge Tuff eruption ⓘ Lava Creek Tuff eruption ⓘ Mesa Falls Tuff eruption ⓘ
riskType	hydrothermal explosion ⓘ large explosive eruption ⓘ lava flows ⓘ

How these facts were elicited

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Yellowstone National Park → knownFor → Yellowstone Caldera ⓘ

Yellowstone National Park → contains → Yellowstone Caldera ⓘ

Greater Yellowstone Ecosystem → contains → Yellowstone Caldera ⓘ

Grand Prismatic Spring → partOf → Yellowstone Caldera ⓘ

this entity surface form: Yellowstone Caldera geothermal system

Grand Canyon of the Yellowstone → partOf → Yellowstone Caldera ⓘ

this entity surface form: Yellowstone Caldera landscape

Yellowstone Lake → locatedInCaldera → Yellowstone Caldera ⓘ

Norris Geyser Basin → partOf → Yellowstone Caldera ⓘ