Climate Change in the Gateway Cities
Gateway Cities Council of Governments and Climate Change As climate change continues to transform the lives of residents in Los Angeles County, the region is
Learn More
Natural Hazards
Metadata
Variable Definitions:
There are 18 specific natural hazards or consequence types included in the National Risk Index. NDSC includes 5 relevant hazards for California: wildfires, drought, coastal flooding, and earthquakes.
Exposure is comprised of three categories: people, agriculture, and buildings. The exposure variable quantifies the value of buildings (in dollars), population (in people), or agriculture (in dollars) potentially exposed to a natural hazard occurrence.
Expected Annual Loss represents the average economic loss in dollars resulting from natural hazards each year
Historic Loss Ratio (HLR) is the hazard- and county-specific estimate of the percentage of the exposed consequence type expected to be lost due to a hazard occurrence.
Source:
Federal Emergency Management Agency (FEMA)
Years Available:
Data supporting the National Risk Index were collected from both publicly accessible resources and organizational connections. Data were last collected between January 2014 – April 2021.
Why are these variables important to measure?
The variables within the National Risk Index help communities to visualize the level of risk to natural hazards their particular regions face. Further, the expected annual loss and historic loss ratios frame the economic and social consequence of a natural hazard occurring. Equipped with key information, communities can anticipate and reduce risk while developing long-term hazard mitigation plans.
Citation:
Federal Emergency Management Agency. “National Risk Index”. Department of Homeland Security. Retrieved from https://hazards.fema.gov/nri/learn-more
Related Data Stories
Energy Burden and Weatherization Across Los Angeles County
For low-income families in Los Angeles County, energy costs are a significant financial drain. Low-income households spend on average, threefold more of their income for
Neighborhood Wellbeing and Environmental Quality for Latino/a Communities in Southeast Los Angeles
The environmental conditions one lives in is a social determinant of health that can impact an individual’s quality of life and risk of diseases, as