Methana volcano
E313197
Methana volcano is an active volcanic complex on the Methana Peninsula in Greece, forming part of the volcanic arc created by the Hellenic subduction system in the Aegean region.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Methana volcano canonical | 2 |
| Methana Volcano | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2837186 — 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: Methana volcano Context triple: [Hellenic subduction system, associatedWith, Methana volcano]
-
A.
Karpinsky Group Volcano
Karpinsky Group Volcano is a complex volcanic massif located in the central Kuril Islands, known for its overlapping stratovolcanoes and calderas.
-
B.
Mendeleev Volcano
Mendeleev Volcano is an active stratovolcano located on Kunashir Island in Russia’s Kuril Islands chain, known for its geothermal activity and frequent fumarolic emissions.
-
C.
Severgin Volcano
Severgin Volcano is a stratovolcano located in Russia’s Kuril Islands, part of the volcanic arc stretching between Japan and Kamchatka.
-
D.
Peteroa volcano
Peteroa volcano is an active stratovolcano in the southern Andes on the Chile–Argentina border, known for its frequent eruptions and association with the Andean Volcanic Belt.
-
E.
Juriques volcano
Juriques volcano is a stratovolcano on the Bolivia–Chile border in the Andes, known for its prominent conical shape and proximity to the better-known Licancabur volcano.
- 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: Methana volcano Target entity description: Methana volcano is an active volcanic complex on the Methana Peninsula in Greece, forming part of the volcanic arc created by the Hellenic subduction system in the Aegean region.
-
A.
Karpinsky Group Volcano
Karpinsky Group Volcano is a complex volcanic massif located in the central Kuril Islands, known for its overlapping stratovolcanoes and calderas.
-
B.
Mendeleev Volcano
Mendeleev Volcano is an active stratovolcano located on Kunashir Island in Russia’s Kuril Islands chain, known for its geothermal activity and frequent fumarolic emissions.
-
C.
Severgin Volcano
Severgin Volcano is a stratovolcano located in Russia’s Kuril Islands, part of the volcanic arc stretching between Japan and Kamchatka.
-
D.
Peteroa volcano
Peteroa volcano is an active stratovolcano in the southern Andes on the Chile–Argentina border, known for its frequent eruptions and association with the Andean Volcanic Belt.
-
E.
Juriques volcano
Juriques volcano is a stratovolcano on the Bolivia–Chile border in the Andes, known for its prominent conical shape and proximity to the better-known Licancabur volcano.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
active volcano
ⓘ
stratovolcano ⓘ volcanic complex ⓘ |
| activityStatus | active ⓘ |
| age | Quaternary ⓘ |
| belongsTo | Attica volcanic region ⓘ |
| closestSea | Saronic Gulf ⓘ |
| country | Greece ⓘ |
| distanceToAthens | about 50 kilometers southwest ⓘ |
| dominantRockType |
andesite
ⓘ
dacite ⓘ |
| eruptionStyle |
effusive eruptions
ⓘ
phreatomagmatic eruptions ⓘ |
| eruptiveCentersCount | dozens of vents ⓘ |
| formationProcess | subduction-related volcanism ⓘ |
| geologicalProvince |
Hellenic volcanic arc
ⓘ
surface form:
Aegean volcanic arc
|
| hasFeature |
fumaroles
ⓘ
hydrothermal springs ⓘ lava domes ⓘ lava flows ⓘ |
| hasHotSprings | yes ⓘ |
| hasResearch | studied by Greek and international volcanologists ⓘ |
| hasThermalActivity | ongoing hydrothermal activity ⓘ |
| hazardType |
gas emissions
ⓘ
phreatic explosions ⓘ seismic activity ⓘ |
| lastEruption | circa 230 BCE ⓘ |
| locatedIn |
Aegean Sea region
ⓘ
surface form:
Aegean region
Methana peninsula ⓘ
surface form:
Methana Peninsula
Peloponnese ⓘ |
| monitoring | Greek seismological networks ⓘ |
| nearbyCity |
Athens
ⓘ
Methana ⓘ |
| notableEruption | historic eruption near the town of Methana in Hellenistic times ⓘ |
| overridingPlate | Eurasian Plate ⓘ |
| partOf |
Hellenic volcanic arc
ⓘ
Hellenic volcanic arc ⓘ
surface form:
South Aegean volcanic arc
|
| relatedVolcano |
Aegina volcanic centers
ⓘ
Milos ⓘ Nisyros ⓘ Santorini ⓘ |
| subductingPlate | African Plate ⓘ |
| tectonicSetting | Hellenic subduction system ⓘ |
| tourism | geotourism destination ⓘ |
| usedFor | geothermal bathing ⓘ |
| volcanicArcSegment | western South Aegean arc ⓘ |
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: Methana volcano Description of subject: Methana volcano is an active volcanic complex on the Methana Peninsula in Greece, forming part of the volcanic arc created by the Hellenic subduction system in the Aegean region.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Methana Volcano