Wireless Emergency Alerts system

E96748

The Wireless Emergency Alerts system is a nationwide public safety tool in the United States that delivers short, location-based emergency messages—such as severe weather warnings, AMBER alerts, and imminent threat notifications—directly to compatible mobile devices.

All labels observed (5)

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf emergency alerting system
public warning system
abbreviation WEA
alertCategory National alerts
State and local alerts
alertTone distinctive attention signal
alsoKnownAs Wireless Emergency Alerts system
surface form: Commercial Mobile Alert System

WEA
authorizedSender National Weather Service
local public safety agencies
state emergency management agencies
President of the United States
surface form: the President of the United States
canBeDisabledByUser some alert categories
cannotBeDisabledByUser Wireless Emergency Alerts system self-linksurface differs
surface form: Presidential alerts
coordinator Federal Emergency Management Agency
country United States of America
surface form: United States
deliveryMethod mobile devices
wireless networks
governedBy FCC Part 10 rules
initialMessageLengthLimit 90 characters
launched April 2012
legalBasis Integrated Public Alert and Warning System
surface form: Warning, Alert, and Response Network Act
locationBased true
messageLengthLimit 360 characters
messageType AMBER Alerts
surface form: AMBER alerts

Wireless Emergency Alerts system self-linksurface differs
surface form: Presidential alerts

imminent threat alerts
public safety alerts
severe weather warnings
test messages
minimumGeoTargetingAccuracy to area not exceeding one-tenth of a mile overshoot when technically feasible
operatedBy Federal Communications Commission
Federal Emergency Management Agency
partOf Integrated Public Alert and Warning System
purpose to provide location-specific safety information
to warn the public about emergencies
regulator Federal Communications Commission
requiresSubscription false
scope nationwide
startDate 2012
supportsGeoTargeting true
supportsLanguage English
Spanish
targetDevice WEA-capable mobile phone
WEA-capable tablet
usesCellTowerLocation true
usesGPS true
usesTechnology cell broadcast
vibrationPattern distinctive vibration cadence

How these facts were elicited

Referenced by (8)

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

Federal Communications Commission supervises Wireless Emergency Alerts system
AMBER Alerts fullName Wireless Emergency Alerts system
subject surface form: AMBER Alert
this entity surface form: America’s Missing: Broadcast Emergency Response
United States emergency management system hasComponent Wireless Emergency Alerts system
this entity surface form: Wireless Emergency Alerts
Wireless Emergency Alerts system alsoKnownAs Wireless Emergency Alerts system
this entity surface form: Commercial Mobile Alert System
Wireless Emergency Alerts system messageType Wireless Emergency Alerts system self-linksurface differs
this entity surface form: Presidential alerts
Wireless Emergency Alerts system cannotBeDisabledByUser Wireless Emergency Alerts system self-linksurface differs
this entity surface form: Presidential alerts
Emergency Alert System in the United States relatedSystem Wireless Emergency Alerts system
subject surface form: Emergency Alert System (United States)
this entity surface form: Wireless Emergency Alerts
Integrated Public Alert and Warning System enables Wireless Emergency Alerts system
this entity surface form: Wireless Emergency Alerts