Ryukyu Arc
E45212
The Ryukyu Arc is a chain of volcanic islands and submarine features stretching from southern Japan toward Taiwan, formed along a convergent plate boundary in the western Pacific.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ryukyu Arc canonical | 5 |
| Honshu arc | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T356065 — 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: Ryukyu Arc Context triple: [Philippine Sea, hasIslandArc, Ryukyu Arc]
-
A.
Taihoku
Taihoku was the Japanese colonial-era name for Taipei, which served as the administrative and political center of Taiwan under Japanese rule.
-
B.
Higashi Shina Kai
Higashi Shina Kai is the Japanese name for the East China Sea, a marginal sea located between China, Japan, Taiwan, and the Korean Peninsula.
-
C.
Takatsuki
Takatsuki is a city in northern Osaka Prefecture, Japan, known as a residential and commercial hub between Osaka and Kyoto.
-
D.
Kaiyukan
Kaiyukan is a large, world-renowned public aquarium in Osaka, Japan, famous for its massive central tank and immersive marine life exhibits.
-
E.
Senkaku Islands
The Senkaku Islands are a small, uninhabited archipelago in the East China Sea that is the subject of a territorial dispute primarily between Japan, China, and Taiwan.
- 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: Ryukyu Arc Target entity description: The Ryukyu Arc is a chain of volcanic islands and submarine features stretching from southern Japan toward Taiwan, formed along a convergent plate boundary in the western Pacific.
-
A.
Taihoku
Taihoku was the Japanese colonial-era name for Taipei, which served as the administrative and political center of Taiwan under Japanese rule.
-
B.
Higashi Shina Kai
Higashi Shina Kai is the Japanese name for the East China Sea, a marginal sea located between China, Japan, Taiwan, and the Korean Peninsula.
-
C.
Takatsuki
Takatsuki is a city in northern Osaka Prefecture, Japan, known as a residential and commercial hub between Osaka and Kyoto.
-
D.
Kaiyukan
Kaiyukan is a large, world-renowned public aquarium in Osaka, Japan, famous for its massive central tank and immersive marine life exhibits.
-
E.
Senkaku Islands
The Senkaku Islands are a small, uninhabited archipelago in the East China Sea that is the subject of a territorial dispute primarily between Japan, China, and Taiwan.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
island arc
ⓘ
subduction zone system ⓘ tectonic arc ⓘ |
| adjacentTo |
Okinawa Trough
ⓘ
Ryukyu Trench ⓘ |
| associatedWith |
back-arc spreading
ⓘ
hydrothermal activity ⓘ tsunami-generating earthquakes ⓘ |
| borderedBy |
East China Sea to the northwest
ⓘ
Philippine Sea to the southeast ⓘ |
| characterizedBy |
active volcanism
ⓘ
back-arc extension ⓘ frequent earthquakes ⓘ steep oceanic trench ⓘ |
| country | Japan ⓘ |
| extendsFrom | southern Japan ⓘ |
| extendsToward |
Taiwan, Province of China
ⓘ
surface form:
Taiwan
|
| formedBy |
convergent plate boundary
ⓘ
subduction of Philippine Sea Plate beneath Eurasian Plate ⓘ |
| geologicalFeature |
island chain
ⓘ
submarine ridge system ⓘ volcanic arc ⓘ |
| hasAge | Cenozoic ⓘ |
| hasGeologicalProcess |
arc magmatism
ⓘ
crustal extension in back-arc region ⓘ oceanic plate subduction ⓘ |
| hasMaximumElevation | Mount Omoto-dake (Ishigaki Island) ⓘ |
| hasPart |
Amami Islands
ⓘ
Daitō Islands ⓘ
surface form:
Daito Islands
Miyako Islands ⓘ Okinawa Island ⓘ
surface form:
Okinawa Islands
Okinawa Trough ⓘ Ryukyu Islands ⓘ Ryukyu Trench ⓘ Ryukyu back-arc basin ⓘ Yaeyama Islands ⓘ |
| hasVolcanismType |
arc volcanism
ⓘ
subduction-related volcanism ⓘ |
| locatedIn |
East China Sea
ⓘ
surface form:
East China Sea region
western Pacific Ocean ⓘ |
| overlies | Philippine Sea Plate ⓘ |
| parallelTo | Ryukyu Trench ⓘ |
| partOf |
Japanese island arcs
ⓘ
Pacific Ring of Fire ⓘ |
| separates | Philippine Sea from East China Sea ⓘ |
| tectonicSetting |
Philippine Sea Plate
ⓘ
surface form:
Philippine Sea Plate–Eurasian Plate boundary
|
| trend | southwest–northeast ⓘ |
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: Ryukyu Arc Description of subject: The Ryukyu Arc is a chain of volcanic islands and submarine features stretching from southern Japan toward Taiwan, formed along a convergent plate boundary in the western Pacific.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Honshu arc