Threat, Hazard Identification & Risk Assessment

Planning & Preparedness
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THIRA 2017

​2017 Update:  Cal OES is currently working on the 2017 THIRA and State Preparedness Reports. The 2017 THIRA targets are under revision with stakeholder groups. California attended and presented at the most recent THIRA Technical Assistance workshop with the FEMA Regions. For assistance or questions on THIRA or THIRA requirements, please contact us.

Explanation of THIRA

Every community has an obligation to understand the risks it faces. Knowledge of these risks allows a community to make informed decisions about how to manage risk and develop needed capabilities. Risk is commonly thought of as a product of a threat or hazard, the vulnerability of a community or facility to a threat or hazard, and the resulting consequences that may impact the community or facility. By considering changes to these elements, a jurisdiction can understand how to best manage risk exposure.
This Threat and Hazard Identification and Risk Assessment (THIRA) guide provides a comprehensive approach for identifying and assessing risks and associated impacts. It expands on an existing local, tribal, territorial, and state Hazard Identification and Risk Assessments (HIRAs) and other risk methodologies by broadening the factors considered in the process, incorporating the whole community throughout the entire process, and by accounting for important community-specific factors.

Source: FEMA Comprehensive Preparedness Guide 201: Threat and Hazard Identification and Risk Assessment Guide, April 2012.


Clifford Viernes
(916) 845-8779 office 


THIRA 2016

THIRA/SPR 2016: The 2016 THIRA and the State Preparedness Report was completed and submitted to FEMA on time to meet the 12/31/2016 deadline. The THIRA targets were frozen and a new target for Fire Management was developed. California utilized the 2014 THIRA Steps One through Three for the 2015 State of California THIRA. In 2015, stakeholders were also asked to estimate resources (THIRA Step Four) for all of the capabilities to help inform the State Preparedness Report. These reports were submitted on time for the 12/3/2015 deadline.


THIRA 2015

National Preparedness Resources Library

THIRA/SPR 2015: California used the existing THIRA targets for the assessment. Please refer to the 2014 capability targets. Resource requirement information from the State THIRA was used to inform the State Preparedness Report. For more information, contact EMSU.



THIRA Summary 2014 Final v2 THIRA Summary 2014 Final v2.pdfTHIRA Summary 2014 Final v2THIRA 20143/25/2015 10:36:18 PM
THIRA Capability Targets 2014 Final Draft THIRA Capability Targets 2014 Final Draft.pdfTHIRA Capability Targets 2014 Final DraftTHIRA 20143/25/2015 10:37:08 PM
THIRA Capability Targets 2014 Draft Markings THIRA Capability Targets_2014 Draft Markings.pdfTHIRA Capability Targets 2014 Draft MarkingsTHIRA 20143/25/2015 10:38:15 PM
Context for Hazards and Threats 2014 Context for Hazards and Threats Short Summary.pdfContext for Hazards and Threats 2014THIRA 20143/25/2015 10:39:20 PM
Context Summary with Changes Context Summary with Changes.pdfContext Summary with ChangesTHIRA 20143/25/2015 10:42:31 PM
Hazard and Threats Data Set and Charts Hazard and Threats Data Set and Charts with Cover.pdfHazard and Threats Data Set and ChartsTHIRA 20143/25/2015 10:40:38 PM



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