New Madrid Seismic Zone margin structures
E344944
The New Madrid Seismic Zone margin structures are a set of buried faults and related tectonic features in the central United States that accommodate intraplate deformation and are responsible for the region’s significant earthquake hazard.
All labels observed (1)
| Label | Occurrences |
|---|---|
| New Madrid Seismic Zone margin structures canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3283924 — 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: New Madrid Seismic Zone margin structures Context triple: [North American plate boundary system, hasPart, New Madrid Seismic Zone margin structures]
-
A.
Pacific–North American plate boundary system
The Pacific–North American plate boundary system is a major tectonic boundary zone where the Pacific Plate and North American Plate interact through a complex network of faults and plate motions along western North America.
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B.
East Pacific tectonic system
The East Pacific tectonic system is a major geological region in the eastern Pacific Ocean characterized by active seafloor spreading, transform faults, and subduction zones that shape the surrounding oceanic plates and continental margins.
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C.
California Coast Ranges seismicity
California Coast Ranges seismicity refers to the pattern and history of earthquakes occurring along the coastal mountain ranges of California, shaped by complex interactions of the Pacific and North American tectonic plates.
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D.
Septentrional-Oriente fault zone
The Septentrional-Oriente fault zone is a major strike-slip fault system in the northern Caribbean region that accommodates tectonic motion between the North American and Caribbean plates and is a significant source of regional earthquakes.
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E.
North American plate boundary system
The North American plate boundary system is the complex network of tectonic plate boundaries and associated fault zones that define the interactions and margins of the North American Plate with adjacent plates.
- 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: New Madrid Seismic Zone margin structures Target entity description: The New Madrid Seismic Zone margin structures are a set of buried faults and related tectonic features in the central United States that accommodate intraplate deformation and are responsible for the region’s significant earthquake hazard.
-
A.
Pacific–North American plate boundary system
The Pacific–North American plate boundary system is a major tectonic boundary zone where the Pacific Plate and North American Plate interact through a complex network of faults and plate motions along western North America.
-
B.
East Pacific tectonic system
The East Pacific tectonic system is a major geological region in the eastern Pacific Ocean characterized by active seafloor spreading, transform faults, and subduction zones that shape the surrounding oceanic plates and continental margins.
-
C.
California Coast Ranges seismicity
California Coast Ranges seismicity refers to the pattern and history of earthquakes occurring along the coastal mountain ranges of California, shaped by complex interactions of the Pacific and North American tectonic plates.
-
D.
Septentrional-Oriente fault zone
The Septentrional-Oriente fault zone is a major strike-slip fault system in the northern Caribbean region that accommodates tectonic motion between the North American and Caribbean plates and is a significant source of regional earthquakes.
-
E.
North American plate boundary system
The North American plate boundary system is the complex network of tectonic plate boundaries and associated fault zones that define the interactions and margins of the North American Plate with adjacent plates.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fault system
ⓘ
seismogenic structure ⓘ tectonic structure set ⓘ |
| accommodates | intraplate deformation ⓘ |
| age | Paleozoic basement origin with reactivation in late Cenozoic ⓘ |
| associatedWith |
1811–1812 New Madrid earthquakes
ⓘ
ground deformation along the Mississippi River ⓘ large intraplate earthquakes ⓘ subsidence in the Mississippi embayment ⓘ |
| buriedUnder | Mississippi embayment sediments ⓘ |
| characterizedBy |
blind faults
ⓘ
normal faulting ⓘ reverse faulting ⓘ strike-slip faulting ⓘ |
| controls |
earthquake hypocenter distribution in the New Madrid Seismic Zone
ⓘ
linear trends of seismicity ⓘ |
| deformationStyle |
compressional reactivation of rift margins
ⓘ
oblique-slip faulting ⓘ |
| hasPart |
Blytheville arch-related faults
ⓘ
Bootheel lineament ⓘ Commerce geophysical lineament-related faults ⓘ Cottonwood Grove fault zone ⓘ Mississippi River Valley graben-bounding faults ⓘ Reelfoot fault ⓘ |
| hasSeismogenicDepthRange | approximately 5–25 km ⓘ |
| hasUncertainty | poor surface expression due to burial ⓘ |
| hazardLevel | high for moderate-to-large earthquakes in central United States ⓘ |
| influences | probabilistic seismic hazard maps for the central United States ⓘ |
| locatedIn |
Arkansas
ⓘ
Illinois ⓘ Kentucky ⓘ Missouri ⓘ Tennessee ⓘ central United States ⓘ |
| mappedBy |
aeromagnetic surveys
ⓘ
borehole data ⓘ gravity surveys ⓘ seismic reflection data ⓘ |
| overlies |
Reelfoot fault
ⓘ
surface form:
Reelfoot rift
|
| partOf | New Madrid Seismic Zone ⓘ |
| reactivatedFrom | Paleozoic rift faults ⓘ |
| relatedTo |
Mississippi Embayment
ⓘ
surface form:
Mississippi embayment
Reelfoot fault ⓘ
surface form:
Reelfoot rift margin
|
| responsibleFor | New Madrid Seismic Zone earthquake hazard ⓘ |
| studiedBy | United States Geological Survey ⓘ |
| studiedFor | seismic hazard assessment ⓘ |
| tectonicSetting | intraplate ⓘ |
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: New Madrid Seismic Zone margin structures Description of subject: The New Madrid Seismic Zone margin structures are a set of buried faults and related tectonic features in the central United States that accommodate intraplate deformation and are responsible for the region’s significant earthquake hazard.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.