Mount Ontake
E196652
Mount Ontake is a large stratovolcano in central Japan known as a sacred mountain and popular hiking destination, as well as the site of a deadly 2014 phreatic eruption.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mount Ontake canonical | 7 |
| Mount Ontake-san | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1757553 — 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: Mount Ontake Context triple: [Chūbu region, containsVolcano, Mount Ontake]
-
A.
Ushishir Volcano
Ushishir Volcano is an active volcanic complex forming part of a partially submerged caldera in the central Kuril Islands of Russia.
-
B.
Maderas Volcano
Maderas Volcano is a dormant stratovolcano on Ometepe Island in southwestern Nicaragua, known for its cloud forest, crater lake, and rich biodiversity.
-
C.
Mount Novarupta
Mount Novarupta is a volcano in Alaska’s Katmai region, best known for its massive 1912 eruption, one of the largest of the 20th century.
-
D.
Sakurajima
Sakurajima is an active stratovolcano in Kagoshima Prefecture, Japan, known for its frequent eruptions and dramatic presence in Kagoshima Bay.
-
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: Mount Ontake Target entity description: Mount Ontake is a large stratovolcano in central Japan known as a sacred mountain and popular hiking destination, as well as the site of a deadly 2014 phreatic eruption.
-
A.
Ushishir Volcano
Ushishir Volcano is an active volcanic complex forming part of a partially submerged caldera in the central Kuril Islands of Russia.
-
B.
Maderas Volcano
Maderas Volcano is a dormant stratovolcano on Ometepe Island in southwestern Nicaragua, known for its cloud forest, crater lake, and rich biodiversity.
-
C.
Mount Novarupta
Mount Novarupta is a volcano in Alaska’s Katmai region, best known for its massive 1912 eruption, one of the largest of the 20th century.
-
D.
Sakurajima
Sakurajima is an active stratovolcano in Kagoshima Prefecture, Japan, known for its frequent eruptions and dramatic presence in Kagoshima Bay.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf |
mountain
ⓘ
sacred mountain ⓘ stratovolcano ⓘ tourist attraction ⓘ |
| alternateName | Ontake-san ⓘ |
| casualtiesIn2014Eruption |
dozens of injuries
ⓘ
over 60 deaths ⓘ |
| country | Japan ⓘ |
| elevation |
10062 ft
ⓘ
3067 m ⓘ |
| eruptionDate | 2014-09-27 ⓘ |
| geologicalAge | Quaternary ⓘ |
| governingBodyForMonitoring | Japan Meteorological Agency ⓘ |
| hasClimbingSeason | summer ⓘ |
| hasCraterLakes | yes ⓘ |
| hasHikingTrails | yes ⓘ |
| hasObservationPoints | yes ⓘ |
| hasRopeway | yes ⓘ |
| hasShrine | Ontake Shrine ⓘ |
| hasSummitShrines | yes ⓘ |
| hazardType |
pyroclastic density currents
ⓘ
volcanic ash fall ⓘ |
| isPopularWith |
hikers
ⓘ
pilgrims ⓘ |
| isSacredTo |
Shugendo practitioners
ⓘ
mountain worship practitioners ⓘ |
| japaneseName | 御嶽山 ⓘ |
| knownFor |
2014 phreatic eruption
ⓘ
hiking ⓘ pilgrimage ⓘ religious significance ⓘ |
| lastEruptionType | phreatic eruption ⓘ |
| lastEruptionYear | 2014 ⓘ |
| locatedIn |
Chūbu region
ⓘ
surface form:
Chubu region
Gifu Prefecture NERFINISHED ⓘ Honshu ⓘ Nagano Prefecture NERFINISHED ⓘ |
| mountainRange | Kiso Mountains ⓘ |
| nearbyCity |
Gero
ⓘ
Kiso ⓘ |
| prominence | 1360 m ⓘ |
| protectedAreaStatus | partly within quasi-national park ⓘ |
| rankingByHeightInJapan | second highest volcano in Japan ⓘ |
| religiousTradition |
Buddhism
ⓘ
Shinto ⓘ |
| volcanicArcOrBelt | Norikura Volcanic Zone ⓘ |
| 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: Mount Ontake Description of subject: Mount Ontake is a large stratovolcano in central Japan known as a sacred mountain and popular hiking destination, as well as the site of a deadly 2014 phreatic eruption.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mount Ontake-san