Johnson Valley fault
E1022936
The Johnson Valley fault is a major right-lateral strike-slip fault in the Mojave Desert of Southern California, known for its role in regional seismic activity.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Johnson Valley fault canonical | 2 |
| Johnson Valley Fault | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12854223 — 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: Johnson Valley fault Context triple: [Eastern California Shear Zone, hasPart, Johnson Valley fault]
-
A.
Greendale Fault
The Greendale Fault is a previously unrecognized tectonic fault in New Zealand’s Canterbury region that ruptured during the 2010 Canterbury earthquake, producing significant ground deformation across the rural landscape.
-
B.
Rodgers Creek Fault
The Rodgers Creek Fault is a major active strike-slip fault in Northern California’s San Francisco Bay Area that poses a significant earthquake hazard, particularly to the North Bay region.
-
C.
Garlock Fault
The Garlock Fault is a major left-lateral strike-slip fault in southern California that forms the northern boundary of the Mojave Desert and plays a key role in the region’s complex tectonic deformation.
-
D.
Coyote Creek Fault
The Coyote Creek Fault is a major right-lateral strike-slip fault in Southern California that forms part of the San Jacinto Fault Zone and is known for generating significant earthquakes.
-
E.
Heezen Fault Zone
The Heezen Fault Zone is a major undersea geological fault system named in honor of American oceanographer Bruce C. Heezen, recognized for his pioneering work in mapping the ocean floor.
- 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: Johnson Valley fault Target entity description: The Johnson Valley fault is a major right-lateral strike-slip fault in the Mojave Desert of Southern California, known for its role in regional seismic activity.
-
A.
Greendale Fault
The Greendale Fault is a previously unrecognized tectonic fault in New Zealand’s Canterbury region that ruptured during the 2010 Canterbury earthquake, producing significant ground deformation across the rural landscape.
-
B.
Rodgers Creek Fault
The Rodgers Creek Fault is a major active strike-slip fault in Northern California’s San Francisco Bay Area that poses a significant earthquake hazard, particularly to the North Bay region.
-
C.
Garlock Fault
The Garlock Fault is a major left-lateral strike-slip fault in southern California that forms the northern boundary of the Mojave Desert and plays a key role in the region’s complex tectonic deformation.
-
D.
Coyote Creek Fault
The Coyote Creek Fault is a major right-lateral strike-slip fault in Southern California that forms part of the San Jacinto Fault Zone and is known for generating significant earthquakes.
-
E.
Heezen Fault Zone
The Heezen Fault Zone is a major undersea geological fault system named in honor of American oceanographer Bruce C. Heezen, recognized for his pioneering work in mapping the ocean floor.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
active fault
ⓘ
geologic fault ⓘ right-lateral fault ⓘ strike-slip fault ⓘ |
| activityStatus | historically active ⓘ |
| associatedWith | regional seismic activity in Southern California ⓘ |
| associatedWithEarthquake | 1992 Landers earthquake ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| deformationStyle | brittle crustal deformation ⓘ |
| displacementDirection | right-lateral along strike ⓘ |
| displacementType | horizontal displacement ⓘ |
| earthquakeMagnitude | 7.3 (1992 Landers earthquake) ⓘ |
| evidenceFrom |
offset geomorphic features
ⓘ
seismicity patterns ⓘ trenching studies ⓘ |
| faultSystem | Eastern California Shear Zone ⓘ |
| faultType | high-angle strike-slip fault ⓘ |
| geologicAgeContext | Quaternary activity ⓘ |
| geomorphicExpression | linear valleys and aligned ridges ⓘ |
| hazardType | earthquake hazard ⓘ |
| includedIn | Southern California seismic hazard models ⓘ |
| kinematics | right-lateral strike-slip kinematics ⓘ |
| lithologyContext | crystalline and sedimentary rocks of the Mojave Desert ⓘ |
| locatedIn |
Mojave Desert
ⓘ
Southern California ⓘ |
| mappedBy | geologists using aerial photography and field mapping ⓘ |
| movementType | right-lateral strike-slip ⓘ |
| near |
Johnson Valley, California
ⓘ
Landers, California ⓘ Lucerne Valley, California ⓘ Twentynine Palms, California ⓘ |
| orientation | northwest–southeast ⓘ |
| partOf |
Eastern California Shear Zone
ⓘ
Mojave Desert fault system ⓘ |
| plateBoundaryRole | distributes plate motion away from the San Andreas Fault ⓘ |
| primaryHazard | strong ground shaking ⓘ |
| region |
San Bernardino County, California
ⓘ
linked to:
San Bernardino County
|
| relatedTo | other faults of the Eastern California Shear Zone ⓘ |
| riskTo |
communities in Southern California
ⓘ
infrastructure in the Mojave Desert region ⓘ |
| rupturedDuring | 1992 Landers earthquake ⓘ |
| secondaryHazard | surface fault rupture ⓘ |
| seismotectonicRole | accommodates right-lateral shear between Pacific and North American plates ⓘ |
| slipSense | dextral ⓘ |
| studiedBy | United States Geological Survey ⓘ |
| tectonicProvince | Basin and Range–Mojave transition zone ⓘ |
| tectonicSetting |
Pacific–North America plate boundary region
ⓘ
linked to:
Pacific–North American plate boundary system
|
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: Johnson Valley fault Description of subject: The Johnson Valley fault is a major right-lateral strike-slip fault in the Mojave Desert of Southern California, known for its role in regional seismic activity.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Johnson Valley fault