​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Metropolitan E​mergency Management Districts

Risk ​Ass​essment Report​

​This district risk assessment report summarises the results of the State Risk Project risk assessment workshops in the Metropolitan Emergency Management (EM) districts. It co​​vers seven priority hazards,​ as identified by the Metropolitan District Emergency Management Committees (DEMCs). The workshop series was conducted between June and September 2016.

For the purpose of the risk assessment, the four Me​tropolitan​ ​District Emergency Management Committees were assessed as one geographical district.

Hazards Assessed:​

​​​ ​ 
​​​​Bush​fire Chemical Substance (HAZMAT) CycloneEarthquake Flood​​HeatwaveStorm

District Risk Profile​​


​​​​​​Re​​​port highlights​​​​:

  • ​​​The result​s for the six hazards assessed reveal that:

- No extreme risks​;

- ​​9% of the risks were assessed as high​;

- < 4% of the risks could cause catastrophic consequences​.​

  • ​E​arth​q​​​uake h​as the g​reatest proportion of high risks (23%) and was the only hazard to produce catastrophic consequences.​ Risks ce​ntred upon the impacts to private and commercial buildings, business activities, environmental contamination from toxic ​substances, transport routes, recovery activities, and the service delivery of CPFS, WA Health and ambulance services. 


  • ​​Damage to buildings from the earthquake w​as anticipated to be significant, with estimates of 30% of the metropolitan building stock sustaining moderate to complete damage. The cyclone and flood im​pacts on commercial and private buildings are likely to be greater than the 2010 Perth Storm event, which caused more than $1 billion worth of damage. 

  • The cyclon​e scenari​o posed a high risk​​ to the aviation sector with estimated economic losses of more than $759 million due to the cost of the aircraft repairs and replacements and the inability to maintain passenger demand in the short term.  

  • The​ earthquake and ​HA​ZMAT (Chemical substance) scenarios would be expected to result in the greatest number of deaths and injuries, but all hazards were anticipated to ​cause at least three deaths.​​​

  • Th​e ​​bushfire, cyclone, flood and HAZMAT (Chemical substance)​ ​scenarios could generate a decline in economic activity and/or loss of asset value greater than $759 million. The earthquake scenario produced high economic risk statements equating to greater than $7.59 billion of losses.​


Full report download

Metropolitan Emer​​gency ​​Man​​agement Districts 

Risk Assessm​en​t Report

29 ​May 2017​​​

PDF ​​​(10,711KB​)​