Emergency Alert System in the United States
E95214
The Emergency Alert System in the United States is a national public warning system that enables authorities to quickly broadcast urgent alerts over television, radio, and other communication channels during emergencies such as natural disasters, threats to public safety, or national crises.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T805662 — 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: Emergency Alert System in the United States Context triple: [Federal Communications Commission, supervises, Emergency Alert System in the United States]
-
A.
United States emergency management system
The United States emergency management system is the nationwide framework of agencies, policies, and procedures responsible for preparing for, responding to, and recovering from natural disasters, technological incidents, and national security emergencies.
-
B.
First Alert
First Alert is a consumer safety brand best known for its smoke alarms, carbon monoxide detectors, and other home safety products.
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C.
National Reporter System
The National Reporter System is a comprehensive set of regional and specialized case law reporters published by West that organizes and publishes judicial opinions from courts across the United States.
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D.
Implementing Recommendations of the 9/11 Commission Act of 2007
The Implementing Recommendations of the 9/11 Commission Act of 2007 is a U.S. federal law that enacted many of the 9/11 Commission’s security and intelligence reforms, including enhanced oversight of counterterrorism activities and civil liberties protections.
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E.
National Terrorism Advisory System
The National Terrorism Advisory System is the United States’ official public warning framework that communicates current terrorism threats and recommended protective actions to government agencies, organizations, and the general public.
- 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: Emergency Alert System in the United States Target entity description: The Emergency Alert System in the United States is a national public warning system that enables authorities to quickly broadcast urgent alerts over television, radio, and other communication channels during emergencies such as natural disasters, threats to public safety, or national crises.
-
A.
United States emergency management system
The United States emergency management system is the nationwide framework of agencies, policies, and procedures responsible for preparing for, responding to, and recovering from natural disasters, technological incidents, and national security emergencies.
-
B.
First Alert
First Alert is a consumer safety brand best known for its smoke alarms, carbon monoxide detectors, and other home safety products.
-
C.
National Reporter System
The National Reporter System is a comprehensive set of regional and specialized case law reporters published by West that organizes and publishes judicial opinions from courts across the United States.
-
D.
Implementing Recommendations of the 9/11 Commission Act of 2007
The Implementing Recommendations of the 9/11 Commission Act of 2007 is a U.S. federal law that enacted many of the 9/11 Commission’s security and intelligence reforms, including enhanced oversight of counterterrorism activities and civil liberties protections.
-
E.
National Terrorism Advisory System
The National Terrorism Advisory System is the United States’ official public warning framework that communicates current terrorism threats and recommended protective actions to government agencies, organizations, and the general public.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
emergency communication system
ⓘ
public warning system ⓘ |
| abbreviation | EAS ⓘ |
| administeredBy | Federal Emergency Management Agency ⓘ |
| authority | President of the United States ⓘ |
| canOverride | regular programming on participating stations ⓘ |
| canTransmit | Presidential Emergency Action Messages ⓘ |
| componentOf | Integrated Public Alert and Warning System ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dataFormat | audio frequency-shift keying ⓘ |
| designedFor | rapid dissemination of life-saving information ⓘ |
| fullyImplemented | late 1990s ⓘ |
| geographicTargeting | county-level targeting via SAME codes ⓘ |
| includesFeature |
attention signal
ⓘ
monthly tests ⓘ required monthly test codes ⓘ weekly tests ⓘ |
| introduced | 1990s ⓘ |
| legalBasis |
Communications Act of 1934
ⓘ
Federal Communications Commission ⓘ
surface form:
Federal Communications Commission rules
U.S. War Powers Resolution ⓘ
surface form:
War Powers Act authorities
|
| medium |
AM radio
ⓘ
FM radio ⓘ cable television systems ⓘ satellite radio ⓘ satellite television ⓘ television ⓘ wireless cable systems ⓘ |
| operatedBy |
Federal Communications Commission
ⓘ
Federal Emergency Management Agency ⓘ National Weather Service ⓘ |
| precededBy |
Emergency Alert System in the United States
self-linksurface differs
ⓘ
surface form:
Emergency Broadcast System
|
| purpose |
dissemination of emergency information to the public
ⓘ
local and state emergency alerts ⓘ national-level presidential alerts ⓘ weather-related emergency alerts ⓘ |
| regulatedBy | Federal Communications Commission ⓘ |
| relatedSystem |
NOAA weather radio network
ⓘ
surface form:
NOAA Weather Radio
Wireless Emergency Alerts system ⓘ
surface form:
Wireless Emergency Alerts
|
| replaced |
Emergency Alert System in the United States
self-linksurface differs
ⓘ
surface form:
Emergency Broadcast System
|
| requiresParticipationFrom |
broadcast television stations
ⓘ
cable television providers ⓘ radio broadcast stations ⓘ satellite television providers ⓘ wireless cable providers ⓘ |
| scope |
local
ⓘ
national ⓘ state ⓘ |
| signalType | dual-tone attention signal ⓘ |
| testMessagePhrase | This is a test of the Emergency Alert System ⓘ |
| typicalEventType |
AMBER Alerts
ⓘ
surface form:
AMBER Alerts (via EAS in some jurisdictions)
civil emergencies ⓘ natural disasters ⓘ severe weather emergencies ⓘ |
| usesProtocol | Specific Area Message Encoding ⓘ |
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: Emergency Alert System in the United States Description of subject: The Emergency Alert System in the United States is a national public warning system that enables authorities to quickly broadcast urgent alerts over television, radio, and other communication channels during emergencies such as natural disasters, threats to public safety, or national crises.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Emergency Alert System (in coordination with other agencies)
this entity surface form:
Emergency Alert System
this entity surface form:
Emergency Alert System
subject surface form:
AMBER Alert
subject surface form:
AMBER Alert
this entity surface form:
Emergency Alert System
United States emergency management system
→
hasComponent
→
Emergency Alert System in the United States
ⓘ
this entity surface form:
Emergency Alert System
Emergency Alert System in the United States
→
replaced
→
Emergency Alert System in the United States
self-linksurface differs
ⓘ
subject surface form:
Emergency Alert System (United States)
this entity surface form:
Emergency Broadcast System
Emergency Alert System in the United States
→
precededBy
→
Emergency Alert System in the United States
self-linksurface differs
ⓘ
subject surface form:
Emergency Alert System (United States)
this entity surface form:
Emergency Broadcast System
this entity surface form:
Emergency Alert System
Guam Homeland Security / Office of Civil Defense
→
uses
→
Emergency Alert System in the United States
ⓘ
this entity surface form:
Emergency Alert System on Guam