Northeastern Japan Arc
E95499
The Northeastern Japan Arc is a major volcanic arc in northern Honshu formed by subduction along the Japan Trench, characterized by numerous active and dormant volcanoes including Mount Akagi.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Northeastern Japan Arc canonical | 6 |
| Northeast Japan Arc | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T802303 — 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: Northeastern Japan Arc Context triple: [Mount Akagi, volcanicArc, Northeastern Japan Arc]
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A.
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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B.
Aleutian Arc
The Aleutian Arc is a major volcanic island chain and subduction zone stretching from Alaska toward Russia, forming part of the tectonically active northern boundary of the Pacific Ocean.
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C.
Kyushu–Palau Ridge system
The Kyushu–Palau Ridge system is a major underwater volcanic island arc and tectonic ridge in the Philippine Sea, formed by subduction-related processes along the western Pacific margin.
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D.
Japan Trench
The Japan Trench is a deep oceanic trench off northeastern Japan where the Pacific Plate subducts beneath the Okhotsk Plate, forming part of the Pacific Ring of Fire and generating powerful earthquakes and tsunamis.
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E.
Nankai Trough
The Nankai Trough is a major submarine trench off the coast of southwestern Japan, known as a highly active subduction zone capable of generating powerful megathrust earthquakes and tsunamis.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Northeastern Japan Arc Target entity description: The Northeastern Japan Arc is a major volcanic arc in northern Honshu formed by subduction along the Japan Trench, characterized by numerous active and dormant volcanoes including Mount Akagi.
-
A.
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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B.
Aleutian Arc
The Aleutian Arc is a major volcanic island chain and subduction zone stretching from Alaska toward Russia, forming part of the tectonically active northern boundary of the Pacific Ocean.
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C.
Kyushu–Palau Ridge system
The Kyushu–Palau Ridge system is a major underwater volcanic island arc and tectonic ridge in the Philippine Sea, formed by subduction-related processes along the western Pacific margin.
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D.
Japan Trench
The Japan Trench is a deep oceanic trench off northeastern Japan where the Pacific Plate subducts beneath the Okhotsk Plate, forming part of the Pacific Ring of Fire and generating powerful earthquakes and tsunamis.
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E.
Nankai Trough
The Nankai Trough is a major submarine trench off the coast of southwestern Japan, known as a highly active subduction zone capable of generating powerful megathrust earthquakes and tsunamis.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geological province
ⓘ
volcanic arc ⓘ |
| age | Cenozoic ⓘ |
| characterizedBy |
numerous active volcanoes
ⓘ
numerous dormant volcanoes ⓘ |
| country | Japan ⓘ |
| extendsFrom | Hokkaido region (southern part) ⓘ |
| extendsTo |
Chūbu region
ⓘ
surface form:
central Honshu
|
| formedBy | subduction ⓘ |
| geologicalProcess |
arc volcanism
ⓘ
crustal deformation ⓘ seismic activity ⓘ |
| hasFeature |
Quaternary volcanoes
ⓘ
back-arc region ⓘ volcanic front ⓘ |
| hasHazard |
large earthquakes
ⓘ
tsunamis (from subduction earthquakes) ⓘ volcanic eruptions ⓘ |
| hasVolcano |
Mount Adatara
ⓘ
Mount Akagi ⓘ Mount Azuma ⓘ Mount Bandai ⓘ Mount Chōkai ⓘ
surface form:
Mount Chokai
Mount Hachimantai ⓘ Mount Hakkoda ⓘ Mount Iwaki ⓘ Mount Iwaki volcanic field ⓘ Mount Iwate ⓘ Mount Kusatsu-Shirane ⓘ Mount Nasu ⓘ Mount Towada ⓘ Mount Zao ⓘ |
| locatedIn | northern Honshu ⓘ |
| locatedOn | Honshu ⓘ |
| orientedAlong | Japan Trench ⓘ |
| overridingPlate |
North American Plate
ⓘ
surface form:
North American Plate (geophysical model)
Okhotsk Plate ⓘ |
| partOf |
Southwest Japan Arc
ⓘ
surface form:
Japan island arcs
Japanese archipelago ⓘ
surface form:
Japanese Archipelago
|
| relatedArc |
Izu–Bonin Arc
ⓘ
surface form:
Izu–Bonin–Mariana Arc
Kuril Islands ⓘ
surface form:
Kuril Arc
Southwest Japan Arc ⓘ
surface form:
Southwestern Japan Arc
|
| studiedIn |
plate tectonics
ⓘ
subduction zone dynamics ⓘ |
| subductingPlate | Pacific Plate ⓘ |
| subductionZone | Japan Trench ⓘ |
| tectonicSetting | convergent plate boundary ⓘ |
| volcanismAge | mainly Quaternary ⓘ |
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: Northeastern Japan Arc Description of subject: The Northeastern Japan Arc is a major volcanic arc in northern Honshu formed by subduction along the Japan Trench, characterized by numerous active and dormant volcanoes including Mount Akagi.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.