Sumatra subduction zone
E41168
The Sumatra subduction zone is a major convergent plate boundary off the western coast of Sumatra where intense seismic and volcanic activity occurs, including some of the world’s largest recorded earthquakes and tsunamis.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Sumatra subduction zone canonical | 3 |
| Andaman–Sumatra subduction zone | 1 |
| Sumatra segment | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T318646 — 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: Sumatra subduction zone Context triple: [Indo-Australian Plate, associatedWith, Sumatra subduction zone]
-
A.
Cascadia Subduction Zone
The Cascadia Subduction Zone is a major convergent plate boundary off the Pacific Northwest coast of North America, capable of generating powerful megathrust earthquakes and tsunamis.
-
B.
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.
-
C.
Philippine Sea Plate
The Philippine Sea Plate is an oceanic tectonic plate in the western Pacific whose complex subduction zones and boundaries contribute significantly to the intense seismic and volcanic activity of the region.
-
D.
Peru–Chile Trench region
The Peru–Chile Trench region is a highly active subduction-zone area off the west coast of South America, known for its deep ocean trench, frequent earthquakes, and major role in Andean mountain building.
-
E.
Mariana volcanic arc
The Mariana volcanic arc is a chain of active and dormant volcanoes in the western Pacific Ocean formed by the subduction of the Pacific Plate beneath the Philippine Sea Plate.
- 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: Sumatra subduction zone Target entity description: The Sumatra subduction zone is a major convergent plate boundary off the western coast of Sumatra where intense seismic and volcanic activity occurs, including some of the world’s largest recorded earthquakes and tsunamis.
-
A.
Cascadia Subduction Zone
The Cascadia Subduction Zone is a major convergent plate boundary off the Pacific Northwest coast of North America, capable of generating powerful megathrust earthquakes and tsunamis.
-
B.
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.
-
C.
Philippine Sea Plate
The Philippine Sea Plate is an oceanic tectonic plate in the western Pacific whose complex subduction zones and boundaries contribute significantly to the intense seismic and volcanic activity of the region.
-
D.
Peru–Chile Trench region
The Peru–Chile Trench region is a highly active subduction-zone area off the west coast of South America, known for its deep ocean trench, frequent earthquakes, and major role in Andean mountain building.
-
E.
Mariana volcanic arc
The Mariana volcanic arc is a chain of active and dormant volcanoes in the western Pacific Ocean formed by the subduction of the Pacific Plate beneath the Philippine Sea Plate.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
convergent plate boundary
ⓘ
subduction zone ⓘ |
| associatedWith |
Barisan Mountains
ⓘ
Sunda Arc ⓘ
surface form:
Sumatran volcanic arc
Sunda Trench ⓘ |
| boundedBy | Sunda Trench ⓘ |
| causes |
deformation of overriding plate
ⓘ
strain accumulation along plate interface ⓘ uplift of Sumatra forearc ⓘ |
| characterizedBy |
arc volcanism
ⓘ
intense seismic activity ⓘ megathrust faulting ⓘ oblique convergence ⓘ tsunamigenic earthquakes ⓘ |
| country | Indonesia ⓘ |
| earthquakeHazardLevel | very high ⓘ |
| extendsFrom |
Andaman Islands
ⓘ
surface form:
Andaman Islands region
|
| extendsTo | south of Sumatra ⓘ |
| hasSeismicityType |
deep-focus earthquakes
ⓘ
intermediate-depth earthquakes ⓘ interplate earthquakes ⓘ intraslab earthquakes ⓘ shallow-focus earthquakes ⓘ |
| knownFor |
2004 Indian Ocean earthquake
ⓘ
2004 Indian Ocean tsunami ⓘ 2005 Nias–Simeulue earthquake ⓘ 2010 Mentawai earthquake and tsunami ⓘ |
| locatedIn | Indian Ocean ⓘ |
| locatedOffCoastOf |
Indonesia
ⓘ
Sumatra ⓘ |
| monitoredBy |
National Meteorological and Hydrological Services
ⓘ
surface form:
Indonesian Agency for Meteorology Climatology and Geophysics
global seismic networks ⓘ |
| ocean | Indian Ocean ⓘ |
| overlies |
Eurasian Plate
ⓘ
Sunda Plate ⓘ |
| overriddenBy |
Eurasian Plate
ⓘ
Sunda Plate ⓘ |
| partOf |
Sunda Arc
ⓘ
surface form:
Sunda arc
Sunda Trench ⓘ
surface form:
Sunda subduction zone
|
| producedEarthquakeMagnitude | >9.0 ⓘ |
| producedEarthquakeType | megathrust earthquake ⓘ |
| riskTo |
coastal communities of Sumatra
ⓘ
countries around the Indian Ocean basin ⓘ |
| subducts |
Indo-Australian Plate
ⓘ
surface form:
Indian Plate
Indo-Australian Plate ⓘ |
| tectonicSetting |
convergence of Indo-Australian Plate and Sunda Plate
ⓘ
oceanic-continental subduction ⓘ |
| tsunamiHazardLevel | very high ⓘ |
| volcanicHazardLevel | high ⓘ |
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: Sumatra subduction zone Description of subject: The Sumatra subduction zone is a major convergent plate boundary off the western coast of Sumatra where intense seismic and volcanic activity occurs, including some of the world’s largest recorded earthquakes and tsunamis.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Andaman–Sumatra subduction zone