Sunda Arc
E123202
The Sunda Arc is a major volcanic island arc in Indonesia formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate, hosting numerous active volcanoes across Sumatra, Java, and the Lesser Sunda Islands.
All labels observed (9)
| Label | Occurrences |
|---|---|
| Sunda Arc canonical | 42 |
| Indonesian volcanic arc | 2 |
| Sumatran volcanic arc | 2 |
| Bali Island volcanic chain | 1 |
| Sumatran volcanic belt | 1 |
| Sunda Arc volcanic system | 1 |
| Sunda arc | 1 |
| Sunda volcanic arc | 1 |
| Sunda–Banda Arc | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1019190 — 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.
Target entity: Sunda Arc Context triple: [Mount Merapi, volcanicArc, Sunda Arc]
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A.
Sunda Trench
The Sunda Trench is a deep oceanic trench in the eastern Indian Ocean off the coasts of Sumatra and Java, formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate.
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B.
Izu–Bonin Arc
The Izu–Bonin Arc is a volcanic island arc in the western Pacific Ocean formed by subduction along the boundary of the Philippine Sea Plate, stretching south from Japan’s Izu Peninsula toward the Mariana Islands.
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C.
Greater Sunda Islands
The Greater Sunda Islands are a major group of large islands in maritime Southeast Asia, including Java, Sumatra, Borneo, and Sulawesi, known for their rich biodiversity and dense human populations.
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D.
Sunda Plate
The Sunda Plate is a minor tectonic plate in Southeast Asia that underlies much of Indonesia and surrounding regions, interacting with several neighboring plates and contributing to the area's high seismic and volcanic activity.
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E.
Tonga–Kermadec Arc
The Tonga–Kermadec Arc is a major submarine volcanic island arc and trench system in the southwest Pacific Ocean, formed by the subduction of the Pacific Plate beneath the Indo-Australian Plate and known for its intense seismic and volcanic activity.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Sunda Arc Target entity description: The Sunda Arc is a major volcanic island arc in Indonesia formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate, hosting numerous active volcanoes across Sumatra, Java, and the Lesser Sunda Islands.
-
A.
Sunda Trench
The Sunda Trench is a deep oceanic trench in the eastern Indian Ocean off the coasts of Sumatra and Java, formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate.
-
B.
Izu–Bonin Arc
The Izu–Bonin Arc is a volcanic island arc in the western Pacific Ocean formed by subduction along the boundary of the Philippine Sea Plate, stretching south from Japan’s Izu Peninsula toward the Mariana Islands.
-
C.
Greater Sunda Islands
The Greater Sunda Islands are a major group of large islands in maritime Southeast Asia, including Java, Sumatra, Borneo, and Sulawesi, known for their rich biodiversity and dense human populations.
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D.
Sunda Plate
The Sunda Plate is a minor tectonic plate in Southeast Asia that underlies much of Indonesia and surrounding regions, interacting with several neighboring plates and contributing to the area's high seismic and volcanic activity.
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E.
Tonga–Kermadec Arc
The Tonga–Kermadec Arc is a major submarine volcanic island arc and trench system in the southwest Pacific Ocean, formed by the subduction of the Pacific Plate beneath the Indo-Australian Plate and known for its intense seismic and volcanic activity.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
island arc
ⓘ
volcanic arc ⓘ |
| associatedHazard |
ash fall
ⓘ
earthquakes ⓘ explosive volcanic eruptions ⓘ pyroclastic flows ⓘ tsunamis ⓘ |
| associatedWith | Sunda Trench ⓘ |
| contains |
Mount Agung
ⓘ
surface form:
Agung
Krakatoa ⓘ
surface form:
Anak Krakatau
Krakatoa ⓘ
surface form:
Krakatau
Krakatoa ⓘ Mount Merapi ⓘ
surface form:
Merapi
Mount Rinjani ⓘ
surface form:
Rinjani
Mount Tambora ⓘ
surface form:
Tambora
Toba Caldera ⓘ
surface form:
Toba volcanic complex
|
| country | Indonesia ⓘ |
| extendsAlong |
Java
ⓘ
Lesser Sunda Islands ⓘ Sumatra ⓘ Greater Sunda Islands ⓘ
surface form:
Sunda Islands
|
| formedBy | subduction ⓘ |
| geologicalAge | Cenozoic ⓘ |
| geologicalProcess | oceanic-continental subduction ⓘ |
| hasFeature |
numerous active volcanoes
ⓘ
stratovolcanoes ⓘ |
| hasPart |
Java segment
ⓘ
Lesser Sunda Islands ⓘ
surface form:
Lesser Sunda Islands segment
Sumatra subduction zone ⓘ
surface form:
Sumatra segment
|
| influences |
Indonesian climate and environment
ⓘ
regional biodiversity patterns ⓘ |
| languageOfWorkOrName | English ⓘ |
| locatedIn |
Indian Ocean Region
ⓘ
surface form:
Indian Ocean region
Southeast Asia ⓘ |
| magmaComposition |
andesitic
ⓘ
basaltic-andesitic ⓘ dacitic ⓘ |
| namedAfter |
Greater Sunda Islands
ⓘ
surface form:
Sunda Islands
|
| overridingPlate |
Eurasian Plate
ⓘ
Sunda Plate ⓘ |
| parallelTo | Sunda Trench ⓘ |
| partOf |
Alpine-Himalayan orogenic belt
ⓘ
surface form:
Alpide Belt
East Pacific tectonic system ⓘ
surface form:
Circum-Pacific and Tethyan orogenic system
|
| studiedIn |
plate tectonics research
ⓘ
seismology ⓘ volcanology ⓘ |
| subductingPlate | Indo-Australian Plate ⓘ |
| tectonicSetting | convergent plate boundary ⓘ |
| volcanicStyle | subduction-related stratovolcanism ⓘ |
| volcanismType | arc volcanism ⓘ |
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.
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.
Subject: Sunda Arc Description of subject: The Sunda Arc is a major volcanic island arc in Indonesia formed by the subduction of the Indo-Australian Plate beneath the Eurasian Plate, hosting numerous active volcanoes across Sumatra, Java, and the Lesser Sunda Islands.
Referenced by (52)
Full triples — surface form annotated when it differs from this entity's canonical label.