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

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
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 rules
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 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
Wireless Emergency Alerts
replaced 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 (via EAS in some jurisdictions)
linked to: AMBER Alerts

civil emergencies
natural disasters
severe weather emergencies
usesProtocol Specific Area Message Encoding

How these facts were elicited

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

Federal Communications Commission supervises Emergency Alert System in the United States
Federal Emergency Management Agency oversees Emergency Alert System (in coordination with other agencies)
linked to: Emergency Alert System in the United States
NWR integratedWith Emergency Alert System
linked to: Emergency Alert System in the United States
Specific Area Message Encoding usedIn Emergency Alert System
linked to: Emergency Alert System in the United States
AMBER Alert partOf Emergency Alert System in the United States
subject linked to: AMBER Alerts
AMBER Alert relatedTo Emergency Alert System
subject linked to: AMBER Alerts
linked to: Emergency Alert System in the United States
United States emergency management system hasComponent Emergency Alert System
linked to: Emergency Alert System in the United States
Emergency Alert System (United States) replaced Emergency Broadcast System
linked to: Emergency Alert System in the United States
Emergency Alert System (United States) precededBy Emergency Broadcast System
linked to: Emergency Alert System in the United States
Dallas–Fort Worth broadcasters usesTechnology Emergency Alert System
linked to: Emergency Alert System in the United States
Guam Homeland Security / Office of Civil Defense uses Emergency Alert System on Guam
linked to: Emergency Alert System in the United States