Hazard Iden fica on and Risk Assessment 

Workbook 

Emergency Management Ontario 2012 

 Why Should I Have a HIRA? 

 One of the core challenges faced by emer‐gency managers  is  how  to  prevent, mi ‐gate,  prepare,  respond  and  recover  from different  types  of  hazards.  Several  ques‐ons must be asked when faced with this 

challenge:     

What hazards exist in or near my community?  How frequently do these hazards occur?  How much damage can they cause?  Which hazards pose the greatest threat?  This Hazard  Iden fica on and Risk Assessment (HIRA) workbook can help guide you in answering these ques ons.   A HIRA can:   Help you to prepare for the worst and/or most likely hazards.  Save  me by isola ng any hazards which can not affect your community.  Allows  for  the crea on of emergency plans, exercises and  training based on 

the most likely and/or highest risk scenarios.  Helps your program to become proac ve rather than just reac ve.  What is a HIRA?  A HIRA  is a risk assessment tool that can be used to assess which hazards pose the greatest risk in terms of how likely they are to occur and how great their po‐ten al impact may be. It is not intended to be used as a predic on tool to deter‐mine which hazard will cause the next emergency. 

Introduc on 

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Agricultural and Food Emergency

- Farm Animal Disease X

- Food Emergency X

- Plant Disease and Pest Infestation X

Drinking Water Emergency X

X Drought/Low Water

X Earthquake

Erosion X

Extreme Temperatures

X - Heat Wave

X - Cold Wave

Flood

X - Riverine Flood

- Seiche

- Storm Surge

- Urban Flood

Fog

X Forest/Wildland Fire

X Freezing Rain / Ice Storm

X Geomagnetic Storm

X Hail

Human Health Emergency

X - Epidemic

X - Pandemic

Hurricane

Land Subsidence

Landslide

X Lightning

Natural Space Object Crash

X Snowstorm/Blizzard

X Tornado

X Windstorm

Sabotage

Special Event

Terrorism/CBRNE

War & International Emergency

- Marine Emergency

- Rail Emergency

- Road Emergency

Human-Caused Hazards

Civil Disorder

Cyber Attack

- Air Emergency

Energy Emergency (Supply)

Explosion/Fire

Hazardous Materials Incident/Spills

- Fixed Site Incident

- Transportation Incident

Human-Made Space Object Crash

Mine Emergency

Nuclear Facility Emergency

Oil/Natural Gas Emergency

Radiological Emergency

Transportation Emergency

Dam Failure

Table 1 - Hazard Identification Worksheet

Natural Hazards Technological Hazards

Building/Structure Collapse

Critical Infrastructure Failure

Place a checkmark in the grey box beside all hazards applicable to your community

Hazard Frequency Category Fatalities InjuriesEvacuatio

n

Property

Damage

CI

Impact

Environmental

Damage

Business /

Financial

Impact

Psychosoci

al Impact

Sub-

variable

Total

Total

ConsequenceDescription

Change In

Frequency

Change In

Vulnerability

Changing

Risk Total

RISK TOTAL

(Frequency x

Consequence

x Changing

Risk)

Level of

Risk

Drought/Low Water 0 FALSE 0 0 0 0 0 0 0 0 0 1 FALSE 1 1 2 0 Very Low

Earthquake 2Very

Unlikely0 0 0 0 0 0 0 0 0 1 FALSE 1 1 2 4 Very Low

Extreme Temperatures- Heat Wave

6AlmostCertain

1 1 0 0 0 0 0 0 2 1 Minor 2 2 4 24 Moderate

Extreme Temperatures- Cold Wave

6AlmostCertain

1 1 0 0 0 0 0 0 2 1 Minor 2 2 4 24 Moderate

Flood - Riverine 3 Unlikely 1 1 1 1 0 1 0 0 5 2 Slight 1 1 2 12 Low

Forest/Wildland Fire 5 Likely 1 1 2 2 1 2 1 1 11 5 Very Severe 2 2 4 100 Extreme

Freezing Rain / IceStorm

5 Likely 0 1 1 1 2 1 1 0 7 3 Moderate 1 2 3 45 Very High

Geomagnetic Storm 2Very

Unlikely0 0 0 0 1 0 0 0 1 1 Minor 1 2 3 6 Very Low

Hail 4 Probable 0 0 0 1 0 1 0 0 2 1 Minor 1 1 2 8 Very Low

Human HealthEmergency - Epidemic

4 Probable 1 0 0 0 0 0 0 1 2 1 Minor 1 2 3 12 Low

Human HealthEmergency - Pandemic

4 Probable 1 0 0 0 0 0 0 1 2 1 Minor 1 1 2 8 Very Low

Lightning 3 Unlikely 0 0 0 0 0 0 0 0 0 1 FALSE 1 1 2 6 Very Low

Snowstorm/Blizzard 3 Unlikely 0 0 0 0 1 0 0 0 1 1 Minor 1 1 2 6 Very Low

Tornado 3 Unlikely 0 0 0 1 0 1 0 0 2 1 Minor 1 1 2 6 Very Low

Natural Hazards

Hazard Identification & Risk Assessment Worksheet(Automatically updates to include data from each hazard tab… this table combines the following from the HIRA Workbook: Table 3 - Frequency Worksheet, Table 10 - Consequence Worksheet, Table 12 - Total Consequence Worksheet, Table 14 - Risk

Analysis Worksheet

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Hazard Frequency Category Fatalities InjuriesEvacuatio

n

Property

Damage

CI

Impact

Environmental

Damage

Business /

Financial

Impact

Psychosoci

al Impact

Sub-

variable

Total

Total

ConsequenceDescription

Change In

Frequency

Change In

Vulnerability

Changing

Risk Total

RISK TOTAL

(Frequency x

Consequence

x Changing

Risk)

Level of

Risk

Hazard Identification & Risk Assessment Worksheet(Automatically updates to include data from each hazard tab… this table combines the following from the HIRA Workbook: Table 3 - Frequency Worksheet, Table 10 - Consequence Worksheet, Table 12 - Total Consequence Worksheet, Table 14 - Risk

Analysis Worksheet

Windstorm 4 Probable 0 0 0 1 0 1 0 0 2 1 Minor 1 1 2 8 Very Low

Critical InfrastructureFailure

3 Unlikely 0 0 0 1 2 0 1 0 4 1 Minor 1 1 2 6 Very Low

Dam Failure 3 Unlikely 0 0 0 1 1 1 0 0 3 1 Minor 2 2 4 12 Low

Energy Emergency(Supply)

3 Unlikely 0 0 0 0 1 0 1 1 3 1 Minor 1 2 3 9 Very Low

Explosion/Fire 4 Probable 1 1 0 2 0 2 0 1 7 3 Moderate 1 2 3 36 High

Hazardous MaterialsIncident/Spills -Transportation Incident

2Very

Unlikely0 0 1 1 1 2 0 0 5 2 Slight 1 2 3 12 Low

Technological Hazards

Human-Caused Hazards

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Hazard FrequencyFrequency

CategoryConsequence

Consequence

Description

Changing

Risk

RISK TOTAL(Frequency x

Consequence x

Changing Risk)

Level of

Risk

Forest / WildlandFire

5 Likely 5 Very Severe 4 100 Extreme

Freezing Rain / IceStorm

5 Likely 3 Moderate 3 45 Very High

Explosion / Fire 4 Probable 3 Moderate 3 36 High

ExtremeTemperatures -Heat Wave

6Almost

Certain1 Minor 4 24 Moderate

ExtremeTemperatures -Cold Wave

6Almost

Certain1 Minor 4 24 Moderate

Human HealthEmergency -Epidemic

4 Probable 1 Minor 3 12 Low

Flood - Riverine 3 Unlikely 2 Slight 2 12 Low

Dam Failure 3 Unlikely 1 Minor 4 12 Low

Hazardous MaterialsIncident / Spills -TransportationIncident

2Very

Unlikely2 Slight 3 12 Low

Lightning 3 Unlikely 1 FALSE 2 6 Very Low

Hazard Identification and Risk Assessment Ranking

To update the order of the ranking: CTRL+SHIFT+R

Page 1

Hazard FrequencyFrequency

CategoryConsequence

Consequence

Description

Changing

Risk

RISK TOTAL(Frequency x

Consequence x

Changing Risk)

Level of

Risk

Hazard Identification and Risk Assessment Ranking

To update the order of the ranking: CTRL+SHIFT+R

Energy Emergency(Supply)

3 Unlikely 1 Minor 3 9 Very Low

Hail 4 Probable 1 Minor 2 8 Very Low

Human HealthEmergency -Pandemic

4 Probable 1 Minor 2 8 Very Low

Windstorm 4 Probable 1 Minor 2 8 Very Low

Snowstorm /Blizzard

3 Unlikely 1 Minor 2 6 Very Low

Tornado 3 Unlikely 1 Minor 2 6 Very Low

CriticalInfrastructureFailure

3 Unlikely 1 Minor 2 6 Very Low

GeomagneticStorm

2Very

Unlikely1 Minor 3 6 Very Low

Earthquake 2Very

Unlikely1 FALSE 2 4 Very Low

Drought / LowWater

0 FALSE 1 FALSE 2 0 Very Low

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