Red risks

These risks have been rated as having high impact and high likelihood.

R76 - Failure of the national electricity transmission system (5 impact, 3 likelihood) 
R95 - Influenza-type disease (5 impact, 3 likelihood) 
R66 - Radiation release from overseas nuclear accident (4 impact, 4 likelihood) 
CP8 - Variable rota power cuts (4 impact, 3 likelihood) 

Amber risks

These risks are more likely to happen, but will have a lower impact.

R80 - Systemic financial crisis (3 impact, 5 likelihood) 
R87 - Volcanic eruption (3 impact, 4 likelihood)
R104 - Public disorder (3 impact, 4 likelihood)
CP7 - Fuel shortages at filling stations (3 impact, 4 likelihood)
R92 - Severe space weather (3 impact, 3 likelihood)
R82 - Fluvial flooding (3 impact, 3 likelihood)
R96 - The growth and spread of antimicrobial resistance (3 impact, 3 likelihood)
R97 - Emerging infectious disease (3 impact, 3 likelihood)
R84 - Drought (3 impact, 3 likelihood)
R78 - Disruption to or loss of telecommunications systems (3 impact, 3 likelihood)

Yellow risks

These risks are less likely to happen and will have a lower impact.

R75 - Water infrastructure failure or loss of drinking water (3 impact, 2 likelihood)
R71 - Aviation crash (3 impact, 1 likelihood)
R99 - Industrial action (firefighters) (2 impact, 5 likelihood)
R101 - Industrial action (public transport) (2 impact, 5 likelihood)
R100 - Industrial action (prison officers) (2 impact, 4 likelihood)
R63 - Accidental release of biological substance (2 impact, 4 likelihood)
R73 - Major social care provider failure (2 impact, 4 likelihood)
R79 - Technological failure at a retail bank (2 impact, 3 likelihood)
CP4 - Railway accident (2 impact, 3 likelihood)
R98 - Major outbreak of animal disease (2 impact, 3 likelihood)
R83 - Surface water flooding (2 impact, 3 likelihood)
R85 - Poor air quality (2 impact, 3 likelihood)
R93 - Storms (2 impact, 3 likelihood)
R54 - Major fire (2 impact, 2 likelihood)
R64 - Large toxic chemical release (2 impact, 2 likelihood)
R68 - Accident involving high consequence dangerous goods (2 impact, 2 likelihood)
R77 - Gas supply failure (2 impact, 2 likelihood)
R69 - Food supply contamination (2 impact, 2 likelihood)
CP1 - Building collapse (2 impact, 2 likelihood)
R102 - Industrial action (fuel supply) (2 impact, 2 likelihood)
R74 - Reservoir/ dam collapse (2 impact, 2 likelihood)
R81 - Coastal flooding (2 impact, 2 likelihood)

Green risks

These risks are considered to have a low impact.

R57 - Explosion at a high pressure gas pipeline (2 impact, 1 likelihood) 
CP2 - Bridge closure or building collapse (2 impact, 1 likelihood)
R62 - Accidental release of biological pathogen (2 impact, 1 likelihood)
CP6 - Small scale highly disruptive demonstration (1 impact, 5 likelihood)
R90 - Heatwave (1 impact, 4 likelihood)
R91 - Low temperatures and heavy snow (1 impact, 4 likelihood)
R105 - Influx of British nationals (1 impact, 4 likelihood)
CP5 - Influx of foreign nationals (1 impact, 4 likelihood)
R70 - Radiation exposure from stolen goods (1 impact, 1 likelihood)
R103 - Insolvency affecting fuel supply (1 impact, 1 likelihood)
R94 - Earthquake (UK) (1 impact, 1 likelihood)