Cerro Machín
E304595
Cerro Machín is a small but highly explosive stratovolcano in central Colombia, known for its potential to produce large, hazardous eruptions despite its modest size.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cerro Machín canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2821721 — 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: Cerro Machín Context triple: [Andean Volcanic Belt, contains, Cerro Machín]
-
A.
Cerro Baúl
Cerro Baúl is a prominent flat-topped mountain in southern Peru that served as a key administrative and ceremonial center of the Wari civilization.
-
B.
Cerro San Rafael
Cerro San Rafael is a prominent mountain peak in northeastern Mexico, notable for being the highest summit in the Sierra Madre Oriental range.
-
C.
Cerro Jefe
Cerro Jefe is a prominent mountain in central Panama known for its cloud forests, biodiversity, and panoramic views over the surrounding isthmus.
-
D.
Cerro del Cubilete
Cerro del Cubilete is a prominent hill in central Mexico crowned by the monumental Cristo Rey statue, a major Catholic pilgrimage site and symbol of religious devotion.
-
E.
Cerro San Valentín
Cerro San Valentín is the highest mountain in Chilean Patagonia, rising prominently within the Northern Patagonian Ice Field of southern Chile.
- 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: Cerro Machín Target entity description: Cerro Machín is a small but highly explosive stratovolcano in central Colombia, known for its potential to produce large, hazardous eruptions despite its modest size.
-
A.
Cerro Baúl
Cerro Baúl is a prominent flat-topped mountain in southern Peru that served as a key administrative and ceremonial center of the Wari civilization.
-
B.
Cerro San Rafael
Cerro San Rafael is a prominent mountain peak in northeastern Mexico, notable for being the highest summit in the Sierra Madre Oriental range.
-
C.
Cerro Jefe
Cerro Jefe is a prominent mountain in central Panama known for its cloud forests, biodiversity, and panoramic views over the surrounding isthmus.
-
D.
Cerro del Cubilete
Cerro del Cubilete is a prominent hill in central Mexico crowned by the monumental Cristo Rey statue, a major Catholic pilgrimage site and symbol of religious devotion.
-
E.
Cerro San Valentín
Cerro San Valentín is the highest mountain in Chilean Patagonia, rising prominently within the Northern Patagonian Ice Field of southern Chile.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
active volcano
ⓘ
stratovolcano ⓘ |
| composition | andesitic to dacitic magma ⓘ |
| country | Colombia ⓘ |
| countrySubdivision | Andean Region of Colombia ⓘ |
| distanceTo | approximately 150 km west of Bogotá ⓘ |
| elevation | approximately 2750 m ⓘ |
| eruptionFrequency | low frequency, high impact ⓘ |
| eruptionPotential | plinian eruptions ⓘ |
| eruptionProducts |
ash falls
ⓘ
lahars ⓘ pyroclastic flows ⓘ |
| eruptionStyle | explosive ⓘ |
| geologicalAge | Quaternary ⓘ |
| governedBy |
Municipality of Cajamarca
ⓘ
surface form:
municipality of Cajamarca
Ibagué city government ⓘ
surface form:
municipality of Ibagué
|
| hasActivity |
fumarolic activity
ⓘ
seismic unrest episodes ⓘ |
| hasCrater | yes ⓘ |
| hasFeature |
caldera
ⓘ
lava domes ⓘ |
| hasVolcanicHazardMap | yes ⓘ |
| hazardLevel | high ⓘ |
| hazardType |
pyroclastic density currents
ⓘ
tephra fallout ⓘ volcanic mudflows ⓘ |
| isConsidered | one of the most potentially dangerous volcanoes in Colombia ⓘ |
| knownFor |
highly explosive eruptions potential
ⓘ
large hazardous eruptions despite small size ⓘ |
| lastEruption | Holocene ⓘ |
| locatedIn |
central Colombia
ⓘ
surface form:
Central Colombia
Tolima Department ⓘ |
| locatedNear | Cajamarca fault system ⓘ |
| monitoredBy | Servicio Geológico Colombiano ⓘ |
| monitoringStatus | permanent instrumental monitoring ⓘ |
| mountainRange | Cordillera Central ⓘ |
| nearbyCity |
Cajamarca
ⓘ
Ibagué ⓘ |
| partOf |
Colombian Andes
ⓘ
Andean Volcanic Belt ⓘ
surface form:
Colombian volcanic belt
|
| riskTo |
infrastructure in Tolima Department
ⓘ
nearby rural communities ⓘ |
| surroundedBy | densely populated agricultural valleys ⓘ |
| tectonicSetting | subduction of Nazca Plate beneath South American Plate ⓘ |
| threatens | agricultural areas around the volcano ⓘ |
| volcanicArcOrBelt | Northern Volcanic Zone of the Andes ⓘ |
| volcanoType | stratovolcano ⓘ |
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: Cerro Machín Description of subject: Cerro Machín is a small but highly explosive stratovolcano in central Colombia, known for its potential to produce large, hazardous eruptions despite its modest size.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Los Nevados volcanic complex