Terror alert systems are standardised emergency population warning systems for describing and disseminating information about terrorism-related threats. They became more popular after the September 11 attacks on the United States in 2001.
Australia
National Counter-Terrorism Alert Level
- Certain – terrorist attack is imminent or has occurred
- Expected– terrorist attack is highly likely
- Probable – terrorist attack is likely
- Possible – terrorist attack could occur
- Low – terrorist attack is not expected
Administered by the Federal Attorney-General’s Department.
France
Plan Vigipirate
- Yellow – to stress vigilance
- Orange – to warn of terrorist action
- Red – to warn of serious attempts
- Crimson – to warn of major attempts
Ireland (Republic of)
International Terror Threat Level
- Low: An attack is deemed unlikely.
- Moderate: An attack is possible, but not likely.
- Substantial: An attack is a strong possibility.
- Severe: An attack is highly likely.
- Critical: An attack is imminent or has occurred.
Administered by the Garda Síochána.[1]
Since November 2015, the international terrorism threat level is considered to be at moderate, meaning an attack is “possible but not likely”.[2][3]
Netherlands
Russia
- Blue – an unconfirmed information about real terroristic threat[4]
- Yellow – a confirmed information about real terroristic threat
- Red – an information about committed terrorist act
United Kingdom
- Low – an attack is unlikely
- Moderate – an attack is possible, but not likely
- Substantial – an attack is a strong possibility
- Severe – an attack is highly likely
- Critical – an attack is expected imminently or has occurred
Administered by the Joint Terrorist Analysis Centre
United States
Homeland Security Advisory System
- Low – Low risk of terrorist attacks
- Guarded – General risk of terrorist attacks
- Elevated – Significant risk of terrorist attacks
- High – High risk of terrorist attacks
- Severe – Severe risk of terrorist attacks
Administered by the Department of Homeland Security
National Terrorism Advisory System
- Elevated Threat – Significant or high risk of terrorist attacks
- Imminent Threat – Critical risk of terrorist attacks
References
- ^ O’Keeffe, Cormac (2 May 2016). “What is the reality of the threat posed by Islamic extremists in Ireland?”. Irish Examiner. Archived from the original on 3 May 2016. Retrieved 11 May 2016.
- ^ “Terror threat level unaffected by attacks”. Irish Independent. 27 June 2015. Archived from the original on 25 September 2015. Retrieved 1 July 2015.
- ^ Williams, Paul; Brady, Tom (24 November 2015). “Units to counter terrorism step up training”. Irish Independent. Archived from the original on 25 November 2015. Retrieved 24 November 2015.
- ^ УРОВНИ ТЕРРОРИСТИЧЕСКОЙ ОПАСНОСТИ | Национальный антитеррористический комитет(in Russian)