Mount Usu
E404393
Mount Usu is an active stratovolcano in Hokkaido, Japan, known for its frequent eruptions and dramatic impact on the surrounding landscape.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mount Usu canonical | 18 |
How this entity was disambiguated
This entity first appeared as the object of triple T3642979 — 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 Usu Context triple: [Shikotsu-Toya National Park, hasPart, Mount Usu]
-
A.
Mount Haruna
Mount Haruna is an active stratovolcano in Gunma Prefecture, Japan, known for its scenic caldera lake, hot springs, and popular hiking and sightseeing spots.
-
B.
Mount Suiro
Mount Suiro is the tallest mountain on Biliran Island in the Philippines, forming a prominent part of the island’s volcanic landscape.
-
C.
Mount Moiwa
Mount Moiwa is a forested mountain on the outskirts of Sapporo, Japan, famous for its ropeway, ski area, and panoramic night views over the city.
-
D.
Mount Noro
Mount Noro is a scenic mountain in Kure, Japan, known for its panoramic views of the Seto Inland Sea and popular hiking and sightseeing opportunities.
-
E.
Mount Asahi
Mount Asahi is the highest peak in Japan’s Hokkaido region, known for its volcanic activity, alpine scenery, and popular hiking and skiing routes.
- 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 Usu Target entity description: Mount Usu is an active stratovolcano in Hokkaido, Japan, known for its frequent eruptions and dramatic impact on the surrounding landscape.
-
A.
Mount Haruna
Mount Haruna is an active stratovolcano in Gunma Prefecture, Japan, known for its scenic caldera lake, hot springs, and popular hiking and sightseeing spots.
-
B.
Mount Suiro
Mount Suiro is the tallest mountain on Biliran Island in the Philippines, forming a prominent part of the island’s volcanic landscape.
-
C.
Mount Moiwa
Mount Moiwa is a forested mountain on the outskirts of Sapporo, Japan, famous for its ropeway, ski area, and panoramic night views over the city.
-
D.
Mount Noro
Mount Noro is a scenic mountain in Kure, Japan, known for its panoramic views of the Seto Inland Sea and popular hiking and sightseeing opportunities.
-
E.
Mount Asahi
Mount Asahi is the highest peak in Japan’s Hokkaido region, known for its volcanic activity, alpine scenery, and popular hiking and skiing routes.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
active volcano
ⓘ
stratovolcano ⓘ |
| country | Japan ⓘ |
| elevation |
2405 ft
ⓘ
733 m ⓘ |
| eruptionYear |
1663
ⓘ
1769 ⓘ 1822 ⓘ 1853 ⓘ 1910 ⓘ 1943 ⓘ 1977 ⓘ 2000 ⓘ |
| formedLavaDome | Shōwa-shinzan ⓘ |
| geologicalAge | Quaternary ⓘ |
| hasCaldera | Yes ⓘ |
| hasFeature |
craters
ⓘ
fumaroles ⓘ lava domes ⓘ |
| hasLavaDomes | Yes ⓘ |
| hasRopeway | Yes ⓘ |
| hasVolcanoMuseum | Yes ⓘ |
| hazardType |
ash fall
ⓘ
landslides ⓘ pyroclastic flows ⓘ volcanic earthquakes ⓘ |
| impact |
created new craters and domes in 20th century
ⓘ
damaged surrounding towns during eruptions ⓘ |
| isPartOf | Northeastern Japan Arc ⓘ |
| isTouristAttraction | Yes ⓘ |
| lastEruption | 2000 ⓘ |
| locatedIn |
Hokkaido
ⓘ
Shikotsu-Toya National Park ⓘ |
| locatedNear |
Date city
ⓘ
Lake Tōya ⓘ Tōyako town ⓘ
linked to:
Tōyako
|
| locatedOn | Oshima Peninsula ⓘ |
| monitoringAgency | Japan Meteorological Agency ⓘ |
| mountainRange | Nasu Volcanic Zone ⓘ |
| nameInJapanese | 有珠山 ⓘ |
| notableEruption |
1910 eruption
ⓘ
1943–1945 Showa-shinzan forming eruption ⓘ 1977–1978 eruption ⓘ 2000 eruption ⓘ |
| offersViewOf |
Lake Tōya
ⓘ
Shōwa-shinzan ⓘ |
| plateBoundary |
Pacific Plate – Okhotsk Plate
ⓘ
linked to:
Okhotsk Plate
|
| region | Iburi Subprefecture ⓘ |
| tectonicSetting | subduction zone volcano ⓘ |
| volcanoType | andesitic 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 Usu Description of subject: Mount Usu is an active stratovolcano in Hokkaido, Japan, known for its frequent eruptions and dramatic impact on the surrounding landscape.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.