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Post-Event Review Capability

The Post-Event Review Capability (PERC) methodology was created by Zurich Insurance to provide research and independent reviews of large flood events. It seeks to answer questions related to aspects of flood resilience, flood risk management and catastrophe intervention. It looks at what went well, as well as opportunities for improvement, and results in a set of recommendations for the future.

Use this page to learn about the PERC methodology, read full PERC reports or find specific recommendations.

PERC Reports

Using PERC methodology

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The PERC manual

The PERC manual

The Post-Event Review Capability (PERC) is a systematic framework for the analysis of a disaster...

Zurich’s Post-Event Review Capability: Global lessons for reducing risk and increasing resilience

Zurich’s Post-Event Review Capability:...

Impacts from disasters are getting worse. Yet after a disaster, there is rarely time to learn what...

Houston and Hurricane Harvey: a call to action

Houston and Hurricane Harvey: a call to...

Hurricane Harvey made landfall near Rockport, Texas on August 25, 2017 as a Category 4 storm. Over...


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DRM Cycle

  • Coping
  • Corrective Risk Reduction
  • Crisis Preparedness
  • Prospective Risk Reduction
  • Reconstruction


  • Assets and Livelihoods
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Published Year

  • 2010
  • 2011
  • 2014
  • 2015
  • 2016
  • 2017

Flood Type

  • Coastal
  • Flash
  • River
  • Surface


  • Physical
  • Human
  • Social
  • Financial
  • Natural


  • Robustness
  • Redundancy
  • Resourcefulness
  • Rapidity

PERC Recommendations

Search all the PERC recommendations produced in all PERC reports. Refine your search using the criteria on the left.

Total: 127 results found

Invest in capacity building at local levels, coupled with more dependable, multi-year DRM funding streams local governments can use to invest in on-going actions

Effective DRM requires action at all scales, from national down to local. Effective integration of DRM into existing institutional structures will require actions focused on locallevel capacity building. At the momen...

Increase cooperation in the region

The majority of Northern African countries – Algeria, Morocco and Tunisia – are similar in terms of their geography, ecosystems sociology. These three countries are bisected by the Atlas mountain chain, dividing...

Use local resources to strengthen communities

As noted already, Morocco often faces floods. An increase in the number of floods over the past two decades has made authorities aware of how exposed the country is to these natural hazards, and brought home the ur...

Increase communication, including during non-crisis periods

Mistrust stemmed from a lack of communication between the government and people, including those who had settled in the middle of the wadi. Communication should be ongoing and not confined to crisis periods. Commun...

Find the solutions that fit the location

In Guelmim, the floods from oued Oum Laachar had the greatest impact, but runoff from a nearby mountain, Mount Tayyert, contributed to the flooding in the central and northern districts. Mitigating this type of ris...