1983 Coalinga earthquake
E586291
The 1983 Coalinga earthquake was a powerful magnitude 6.5 seismic event in central California that caused significant damage to the town of Coalinga and surrounding areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1983 Coalinga earthquake canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6345900 — 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: 1983 Coalinga earthquake Context triple: [Coalinga, experiencedEvent, 1983 Coalinga earthquake]
-
A.
1968 Borrego Mountain earthquake
The 1968 Borrego Mountain earthquake was a powerful magnitude 6.5–6.8 temblor in Southern California that caused significant surface rupture and damage, and became an important case study in modern seismology and fault mechanics.
-
B.
1989 Loma Prieta earthquake
The 1989 Loma Prieta earthquake was a powerful magnitude 6.9 quake in Northern California that caused widespread damage in the San Francisco Bay Area, including freeway collapses and the disruption of the World Series.
-
C.
Loma Prieta
Loma Prieta is a prominent peak in California’s Santa Cruz Mountains, best known for lending its name to the devastating 1989 Loma Prieta earthquake.
-
D.
1868 Hayward earthquake
The 1868 Hayward earthquake was a powerful and destructive seismic event that struck the San Francisco Bay Area in California, causing extensive damage and loss of life and serving as a key historical benchmark for seismic risk on the Hayward Fault.
-
E.
1994 Northridge earthquake
The 1994 Northridge earthquake was a powerful and destructive magnitude 6.7 earthquake that struck the Los Angeles area of Southern California on January 17, 1994, causing widespread damage and loss of life.
- 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: 1983 Coalinga earthquake Target entity description: The 1983 Coalinga earthquake was a powerful magnitude 6.5 seismic event in central California that caused significant damage to the town of Coalinga and surrounding areas.
-
A.
1968 Borrego Mountain earthquake
The 1968 Borrego Mountain earthquake was a powerful magnitude 6.5–6.8 temblor in Southern California that caused significant surface rupture and damage, and became an important case study in modern seismology and fault mechanics.
-
B.
1989 Loma Prieta earthquake
The 1989 Loma Prieta earthquake was a powerful magnitude 6.9 quake in Northern California that caused widespread damage in the San Francisco Bay Area, including freeway collapses and the disruption of the World Series.
-
C.
Loma Prieta
Loma Prieta is a prominent peak in California’s Santa Cruz Mountains, best known for lending its name to the devastating 1989 Loma Prieta earthquake.
-
D.
1868 Hayward earthquake
The 1868 Hayward earthquake was a powerful and destructive seismic event that struck the San Francisco Bay Area in California, causing extensive damage and loss of life and serving as a key historical benchmark for seismic risk on the Hayward Fault.
-
E.
1994 Northridge earthquake
The 1994 Northridge earthquake was a powerful and destructive magnitude 6.7 earthquake that struck the Los Angeles area of Southern California on January 17, 1994, causing widespread damage and loss of life.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | earthquake ⓘ |
| affectedInfrastructure |
downtown Coalinga
ⓘ
residential buildings in Coalinga ⓘ |
| casualties | multiple injuries ⓘ |
| category |
1983 earthquakes
ⓘ
Earthquakes in California ⓘ Fresno County, California history ⓘ Natural disasters in California ⓘ |
| causedDamageIn |
Avenal, California
NERFINISHED
ⓘ
Coalinga, California NERFINISHED ⓘ Fresno County, California NERFINISHED ⓘ Hanford, California NERFINISHED ⓘ Lemoore, California NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | 1983-05-02 ⓘ |
| depth | 10 km ⓘ |
| economicLoss | hundreds of millions of US dollars ⓘ |
| epicenterNear | Coalinga, California NERFINISHED ⓘ |
| fatalities | several deaths ⓘ |
| faultType | blind thrust fault ⓘ |
| feltIn |
Los Angeles area
NERFINISHED
ⓘ
San Francisco Bay Area NERFINISHED ⓘ |
| hazardType | seismic hazard ⓘ |
| intensityScale | Modified Mercalli intensity scale NERFINISHED ⓘ |
| localTime | 16:42 PDT ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Central California NERFINISHED ⓘ Coalinga, California NERFINISHED ⓘ Fresno County, California NERFINISHED ⓘ |
| magnitude | 6.5 ⓘ |
| magnitudeScale | moment magnitude scale ⓘ |
| maximumIntensity | VIII (Severe) ⓘ |
| month | May ⓘ |
| notableFor |
occurrence on a previously unrecognized blind thrust fault
ⓘ
severe damage to the town of Coalinga ⓘ |
| partOf |
history of earthquakes in California
ⓘ
seismicity of the San Joaquin Valley ⓘ |
| primaryEffects |
building damage
ⓘ
landslides ⓘ rockfalls ⓘ surface deformation ⓘ |
| region | San Andreas Fault system region NERFINISHED ⓘ |
| studiedBy | United States Geological Survey NERFINISHED ⓘ |
| tectonicSetting |
Coast Ranges of California
NERFINISHED
ⓘ
San Joaquin Valley NERFINISHED ⓘ |
| triggered | aftershock sequence near Coalinga ⓘ |
| utcTime | 23:42 UTC ⓘ |
| year | 1983 ⓘ |
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: 1983 Coalinga earthquake Description of subject: The 1983 Coalinga earthquake was a powerful magnitude 6.5 seismic event in central California that caused significant damage to the town of Coalinga and surrounding areas.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.