Sierra Negra Volcano
E705507
Sierra Negra Volcano is a massive active shield volcano in the Galápagos Islands, noted for its enormous caldera and frequent eruptions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sierra Negra Volcano canonical | 1 |
| Sierra Negra caldera | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7784625 — 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: Sierra Negra Volcano Context triple: [Isabela Island, hasVolcano, Sierra Negra Volcano]
-
A.
Cerro Negro
Cerro Negro is an active cinder cone volcano in western Nicaragua, known for its frequent eruptions and for being a popular site for volcano boarding.
-
B.
San Pablo volcano
San Pablo volcano is a stratovolcano in northern Chile’s Andes, known for its high elevation and proximity to the more prominent San Pedro volcano.
-
C.
San Pedro volcano
San Pedro volcano is a prominent stratovolcano in northern Chile’s Andes, known for its high elevation, arid surroundings, and association with the Central Volcanic Zone.
-
D.
Ceboruco volcano
Ceboruco volcano is an active stratovolcano in the Mexican state of Nayarit, known for its historical eruptions and prominent lava domes.
-
E.
Tolima volcano
Tolima volcano is a prominent, glacier-capped stratovolcano in the Central Andes of Colombia, known for its steep slopes and significant role in the region’s geography and history.
- 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: Sierra Negra Volcano Target entity description: Sierra Negra Volcano is a massive active shield volcano in the Galápagos Islands, noted for its enormous caldera and frequent eruptions.
-
A.
Cerro Negro
Cerro Negro is an active cinder cone volcano in western Nicaragua, known for its frequent eruptions and for being a popular site for volcano boarding.
-
B.
San Pablo volcano
San Pablo volcano is a stratovolcano in northern Chile’s Andes, known for its high elevation and proximity to the more prominent San Pedro volcano.
-
C.
San Pedro volcano
San Pedro volcano is a prominent stratovolcano in northern Chile’s Andes, known for its high elevation, arid surroundings, and association with the Central Volcanic Zone.
-
D.
Ceboruco volcano
Ceboruco volcano is an active stratovolcano in the Mexican state of Nayarit, known for its historical eruptions and prominent lava domes.
-
E.
Tolima volcano
Tolima volcano is a prominent, glacier-capped stratovolcano in the Central Andes of Colombia, known for its steep slopes and significant role in the region’s geography and history.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
active volcano
ⓘ
shield volcano ⓘ |
| country | Ecuador ⓘ |
| eruptionStyle |
effusive
ⓘ
fissure eruption ⓘ |
| formsPartOf | Isabela Island volcanic chain NERFINISHED ⓘ |
| hasActivity |
hiking
ⓘ
volcano observation ⓘ |
| hasApproximateCalderaDiameter |
10 kilometers
ⓘ
9 kilometers ⓘ |
| hasCaldera | Sierra Negra caldera NERFINISHED ⓘ |
| hasCalderaFloor | lava flows ⓘ |
| hasDeformation | inflation-deflation cycles ⓘ |
| hasEruptionFrequency | historically frequent ⓘ |
| hasFrequentEruptions | true ⓘ |
| hasHazardType |
ash emissions
ⓘ
gas emissions ⓘ lava flows ⓘ |
| hasLanguageName | Spanish ⓘ |
| hasLavaType | tholeiitic basalt ⓘ |
| hasMorphology | broad low-angle shield ⓘ |
| hasProtectionStatus | UNESCO World Heritage Site (within Galápagos Islands) NERFINISHED ⓘ |
| hasRecentEruption |
1979
ⓘ
2005 ⓘ 2018 ⓘ |
| hasRegion | Pacific Ocean NERFINISHED ⓘ |
| hasRockType | basalt ⓘ |
| hasSpanishName | Volcán Sierra Negra NERFINISHED ⓘ |
| hasSummitFeature | enormous caldera ⓘ |
| hasVolcanoType | shield volcano ⓘ |
| isActive | true ⓘ |
| isAssociatedWith | Galápagos mantle plume NERFINISHED ⓘ |
| isMonitoredBy |
Galápagos National Park authorities
NERFINISHED
ⓘ
Instituto Geofísico de la Escuela Politécnica Nacional NERFINISHED ⓘ |
| isOneOf | largest calderas in the world ⓘ |
| isOnIsland | Isabela Island NERFINISHED ⓘ |
| isPartOf | Galápagos National Park NERFINISHED ⓘ |
| isTouristAttraction | true ⓘ |
| locatedIn |
Ecuador
NERFINISHED
ⓘ
Galápagos Islands NERFINISHED ⓘ Isabela Island NERFINISHED ⓘ |
| partOf | Galápagos hotspot volcanic system NERFINISHED ⓘ |
| tectonicSetting | Nazca Plate over Galápagos hotspot ⓘ |
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: Sierra Negra Volcano Description of subject: Sierra Negra Volcano is a massive active shield volcano in the Galápagos Islands, noted for its enormous caldera and frequent eruptions.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sierra Negra caldera