Agrihan volcano
E128877
Agrihan volcano is a large stratovolcano in the Northern Mariana Islands, notable for forming the highest peak in the archipelago and being part of the active Mariana volcanic arc.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Agrihan volcano canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1025098 — 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: Agrihan volcano Context triple: [Mariana Island Arc, highestPoint, Agrihan volcano]
-
A.
Maderas Volcano
Maderas Volcano is a dormant stratovolcano on Ometepe Island in southwestern Nicaragua, known for its cloud forest, crater lake, and rich biodiversity.
-
B.
Lascar volcano
Lascar volcano is an active stratovolcano in northern Chile known for its frequent eruptions and prominent ash plumes within the Central Volcanic Zone of the Andes.
-
C.
Tupungatito volcano
Tupungatito volcano is an active stratovolcano in the central Andes on the Chile–Argentina border, known for frequent small eruptions and its role in the Andean volcanic arc.
-
D.
Llaima Volcano
Llaima Volcano is one of Chile’s most active and prominent stratovolcanoes, located in the Andes within the country’s southern volcanic zone.
-
E.
Ubinas volcano
Ubinas volcano is an active stratovolcano in southern Peru known for its frequent eruptions and status as one of the country's most hazardous volcanoes.
- 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: Agrihan volcano Target entity description: Agrihan volcano is a large stratovolcano in the Northern Mariana Islands, notable for forming the highest peak in the archipelago and being part of the active Mariana volcanic arc.
-
A.
Maderas Volcano
Maderas Volcano is a dormant stratovolcano on Ometepe Island in southwestern Nicaragua, known for its cloud forest, crater lake, and rich biodiversity.
-
B.
Lascar volcano
Lascar volcano is an active stratovolcano in northern Chile known for its frequent eruptions and prominent ash plumes within the Central Volcanic Zone of the Andes.
-
C.
Tupungatito volcano
Tupungatito volcano is an active stratovolcano in the central Andes on the Chile–Argentina border, known for frequent small eruptions and its role in the Andean volcanic arc.
-
D.
Llaima Volcano
Llaima Volcano is one of Chile’s most active and prominent stratovolcanoes, located in the Andes within the country’s southern volcanic zone.
-
E.
Ubinas volcano
Ubinas volcano is an active stratovolcano in southern Peru known for its frequent eruptions and status as one of the country's most hazardous volcanoes.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Quaternary volcano
ⓘ
stratovolcano ⓘ subduction-related volcano ⓘ |
| administrativeTerritory |
Northern Mariana Islands
ⓘ
surface form:
Commonwealth of the Northern Mariana Islands
|
| country |
United States of America
ⓘ
surface form:
United States
|
| dominantRockType |
andesite
ⓘ
basaltic andesite ⓘ |
| elevation |
approximately 3166 feet
ⓘ
approximately 965 metres ⓘ |
| eruptionHistory | Holocene eruptions documented ⓘ |
| eruptionProduct |
andesitic lava
ⓘ
basaltic-andesite lava ⓘ |
| eruptionStyle | explosive eruptions ⓘ |
| geologicalAge | Quaternary ⓘ |
| hasCaldera |
approximately 1 km wide
ⓘ
partially filled by younger cone ⓘ |
| hasFeature |
radial drainage pattern
ⓘ
steep flanks ⓘ |
| hazardPotential | active volcano with potential for future eruptions ⓘ |
| highestPointOf | Northern Mariana Islands ⓘ |
| islandFormedBy | volcanic activity ⓘ |
| lastEruption | 1917 ⓘ |
| listedIn |
Global Volcanism Program
ⓘ
surface form:
Global Volcanism Program database
|
| locatedIn |
Agrihan Island
ⓘ
Mariana Islands ⓘ Northern Mariana Islands ⓘ Pacific Ocean ⓘ |
| locatedOn | Agrihan seamount ⓘ |
| monitoredBy |
Government of the Northern Mariana Islands
ⓘ
surface form:
Commonwealth of the Northern Mariana Islands authorities
United States Geological Survey ⓘ
surface form:
U.S. Geological Survey
|
| mountainRange |
Mariana Island Arc
ⓘ
surface form:
Mariana Islands volcanic chain
|
| partOf |
Izu–Bonin Arc
ⓘ
surface form:
Izu–Bonin–Mariana Arc system
Mariana volcanic arc ⓘ |
| prominence | approximately 965 metres ⓘ |
| region | western Pacific ⓘ |
| relativeLocation |
north of Pagan Island
ⓘ
north of Saipan ⓘ |
| summitFeature |
central cone within caldera
ⓘ
large summit caldera ⓘ |
| tectonicSetting |
convergent plate boundary
ⓘ
subduction of the Pacific Plate beneath the Philippine Sea Plate ⓘ |
| topographicType | island volcano ⓘ |
| volcanicArc |
Mariana Island Arc
ⓘ
surface form:
Mariana Arc
|
| volcanicHazard |
ashfall potential
ⓘ
lahar potential ⓘ pyroclastic flows potential ⓘ volcanic gas emissions potential ⓘ |
| volcanoNumber | 0803-10= ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Agrihan volcano Description of subject: Agrihan volcano is a large stratovolcano in the Northern Mariana Islands, notable for forming the highest peak in the archipelago and being part of the active Mariana volcanic arc.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.