Miyakejima
E1020916
Miyakejima is a volcanic island in the Izu archipelago of Japan, known for its active volcano, frequent eruptions, and unique gas-monitoring measures affecting residents and visitors.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Miyakejima canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10521689 — 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: Miyakejima Context triple: [Nanpō Islands, contains, Miyakejima]
-
A.
Miyako-jima
Miyako-jima is a subtropical Japanese island in Okinawa Prefecture known for its clear blue waters, coral reefs, and popular beach resorts.
-
B.
Ikema-jima
Ikema-jima is a small coral island in Okinawa Prefecture, Japan, known for its traditional Ryukyuan culture, scenic coastline, and rich marine environment.
-
C.
Sannō-jima
Sannō-jima is a small Japanese island that forms part of the remote Mukojima subgroup within the Ogasawara (Bonin) Islands in the Pacific Ocean.
-
D.
Kakeromajima
Kakeromajima is a small, sparsely populated island in Japan’s Amami archipelago, known for its subtropical climate, clear waters, and relatively undeveloped, traditional rural communities.
-
E.
Jinoshima
Jinoshima is one of the uninhabited Tomogashima Islands in Japan, known for its rugged natural scenery and remnants of former military fortifications.
- 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: Miyakejima Target entity description: Miyakejima is a volcanic island in the Izu archipelago of Japan, known for its active volcano, frequent eruptions, and unique gas-monitoring measures affecting residents and visitors.
-
A.
Miyako-jima
Miyako-jima is a subtropical Japanese island in Okinawa Prefecture known for its clear blue waters, coral reefs, and popular beach resorts.
-
B.
Ikema-jima
Ikema-jima is a small coral island in Okinawa Prefecture, Japan, known for its traditional Ryukyuan culture, scenic coastline, and rich marine environment.
-
C.
Sannō-jima
Sannō-jima is a small Japanese island that forms part of the remote Mukojima subgroup within the Ogasawara (Bonin) Islands in the Pacific Ocean.
-
D.
Kakeromajima
Kakeromajima is a small, sparsely populated island in Japan’s Amami archipelago, known for its subtropical climate, clear waters, and relatively undeveloped, traditional rural communities.
-
E.
Jinoshima
Jinoshima is one of the uninhabited Tomogashima Islands in Japan, known for its rugged natural scenery and remnants of former military fortifications.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
inhabited island
ⓘ
volcanic island ⓘ |
| administeredBy | Tokyo Metropolitan Government NERFINISHED ⓘ |
| belongsToIslandChain | Nanpō Islands NERFINISHED ⓘ |
| climate | humid subtropical climate ⓘ |
| country | Japan ⓘ |
| distanceFrom | about 180 km south of central Tokyo ⓘ |
| eruptedIn |
1940
ⓘ
1962 ⓘ 1983 ⓘ 2000 ⓘ |
| evacuationOrdered | September 2000 ⓘ |
| governedAs | village of Miyake ⓘ |
| hasAirport | Miyakejima Airport NERFINISHED ⓘ |
| hasEconomicActivity |
agriculture
ⓘ
fishing ⓘ tourism ⓘ |
| hasFeature |
black sand beaches
ⓘ
caldera at summit of Mount Oyama ⓘ lava flows ⓘ steep coastal cliffs ⓘ subtropical vegetation ⓘ |
| hasHazard |
ash fall
ⓘ
pyroclastic flows (historically) ⓘ sulfur dioxide gas ⓘ |
| hasMonitoring |
continuous volcanic gas monitoring system
ⓘ
seismic monitoring network ⓘ |
| hasPopulationStatus | temporarily evacuated after 2000 eruption ⓘ |
| hasTransport |
air service via Miyakejima Airport
ⓘ
ferry connections to Tokyo ⓘ |
| hasVolcano | Mount Oyama NERFINISHED ⓘ |
| islandType | basaltic volcanic island ⓘ |
| knownFor |
birdwatching opportunities
ⓘ
diving spots with rich marine life ⓘ |
| languageUsed | Japanese ⓘ |
| lastMajorEruption | 2000 ⓘ |
| locatedIn |
Izu archipelago
NERFINISHED
ⓘ
Philippine Sea NERFINISHED ⓘ |
| locatedInAdministrative | Tokyo Metropolis NERFINISHED ⓘ |
| notableFor |
frequent volcanic eruptions
ⓘ
gas-monitoring measures for residents ⓘ high volcanic gas emissions ⓘ requirement to carry gas masks during high SO2 levels (historically) ⓘ |
| partOf | Izu Islands NERFINISHED ⓘ |
| resettlementAllowed | 2005 ⓘ |
| tectonicSetting | subduction zone of the Pacific Plate beneath the Philippine Sea Plate ⓘ |
| timeZone | Japan Standard Time ⓘ |
| volcanicArc | Izu–Bonin–Mariana Arc NERFINISHED ⓘ |
| 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: Miyakejima Description of subject: Miyakejima is a volcanic island in the Izu archipelago of Japan, known for its active volcano, frequent eruptions, and unique gas-monitoring measures affecting residents and visitors.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.