El Agrio crater
E911296
El Agrio crater is the main active volcanic crater of the Copahue stratovolcano on the Chile–Argentina border, known for its acidic crater lake and frequent fumarolic activity.
All labels observed (1)
| Label | Occurrences |
|---|---|
| El Agrio crater canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11217333 — 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: El Agrio crater Context triple: [Copahue, dominantCraterName, El Agrio crater]
-
A.
El Tecolote crater
El Tecolote crater is a volcanic crater located within Mexico’s Pinacate volcanic field, known for its distinctive geology and desert landscape.
-
B.
El Trébol crater
El Trébol crater is a volcanic crater located within Mexico’s Pinacate volcanic region, known for its distinctive circular form amid the area’s rugged lava fields and cinder cones.
-
C.
Diego de la Haya Crater
Diego de la Haya Crater is a prominent secondary crater within Costa Rica’s Irazú Volcano, known for its striking crater lake and role in the volcano’s recent eruptive history.
-
D.
Sherman Crater
Sherman Crater is a prominent volcanic crater on the south side of Mount Baker in Washington State, known for its active fumaroles and role in monitoring the volcano’s geothermal and eruptive activity.
-
E.
Tiscapa crater
Tiscapa crater is a volcanic crater in Managua, Nicaragua, known for containing Lake Tiscapa and forming part of a historic natural reserve area.
- 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: El Agrio crater Target entity description: El Agrio crater is the main active volcanic crater of the Copahue stratovolcano on the Chile–Argentina border, known for its acidic crater lake and frequent fumarolic activity.
-
A.
El Tecolote crater
El Tecolote crater is a volcanic crater located within Mexico’s Pinacate volcanic field, known for its distinctive geology and desert landscape.
-
B.
El Trébol crater
El Trébol crater is a volcanic crater located within Mexico’s Pinacate volcanic region, known for its distinctive circular form amid the area’s rugged lava fields and cinder cones.
-
C.
Diego de la Haya Crater
Diego de la Haya Crater is a prominent secondary crater within Costa Rica’s Irazú Volcano, known for its striking crater lake and role in the volcano’s recent eruptive history.
-
D.
Sherman Crater
Sherman Crater is a prominent volcanic crater on the south side of Mount Baker in Washington State, known for its active fumaroles and role in monitoring the volcano’s geothermal and eruptive activity.
-
E.
Tiscapa crater
Tiscapa crater is a volcanic crater in Managua, Nicaragua, known for containing Lake Tiscapa and forming part of a historic natural reserve area.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
active volcanic crater
ⓘ
volcanic crater ⓘ |
| belongsToVolcanicArc | Southern Volcanic Zone of the Andes NERFINISHED ⓘ |
| emitsGas |
carbon dioxide
ⓘ
hydrogen chloride ⓘ hydrogen sulfide ⓘ sulfur dioxide ⓘ |
| eruptionStyle |
phreatic eruptions
ⓘ
phreatomagmatic eruptions ⓘ |
| hasActivityType |
ash emissions
ⓘ
fumarolic activity ⓘ hydrothermal explosions ⓘ |
| hasCharacteristic |
frequent fumarolic activity
ⓘ
highly acidic waters ⓘ persistent degassing ⓘ strong sulfur odor ⓘ sulfur-rich emissions ⓘ |
| hasCraterLake | El Agrio crater lake NERFINISHED ⓘ |
| hasHydrothermalSystem | acid-sulfate system ⓘ |
| hasLakeColor |
greenish
ⓘ
turquoise ⓘ |
| hasNameLanguage | Spanish ⓘ |
| hasResearchInterest |
acid crater lake geochemistry
ⓘ
hydrothermal system dynamics ⓘ volcanic gas monitoring ⓘ |
| hasWaterType | acidic crater lake ⓘ |
| hazardType |
ashfall
ⓘ
lahars ⓘ volcanic gas emissions ⓘ |
| isActiveCraterOf | Copahue volcano NERFINISHED ⓘ |
| isMainCraterOf | Copahue stratovolcano NERFINISHED ⓘ |
| locatedIn | Copahue volcano NERFINISHED ⓘ |
| locatedInMountainRange | Andes NERFINISHED ⓘ |
| locatedOnBorderOf |
Argentina
NERFINISHED
ⓘ
Chile NERFINISHED ⓘ |
| monitoredBy |
Argentine geological and volcanological agencies
ⓘ
Servicio Nacional de Geología y Minería de Chile NERFINISHED ⓘ |
| nameMeaning | The Sour crater NERFINISHED ⓘ |
| nearBorderLocality |
Biobío Region
NERFINISHED
ⓘ
Neuquén Province NERFINISHED ⓘ |
| partOf | Copahue stratovolcano NERFINISHED ⓘ |
| relatedToFeature |
Copahue geothermal field
NERFINISHED
ⓘ
Copahue–Caviahue volcanic complex NERFINISHED ⓘ |
| waterChemistry |
high dissolved metals
ⓘ
sulfuric acid dominated ⓘ |
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: El Agrio crater Description of subject: El Agrio crater is the main active volcanic crater of the Copahue stratovolcano on the Chile–Argentina border, known for its acidic crater lake and frequent fumarolic activity.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.