Temporal and spatial changes in social vulnerability to natural hazards

Temporal and spatial changes in social vulnerability to natural hazards

February 19, 2008 | Susan L. Cutter* and Christina Finch
The paper by Cutter and Finch examines the temporal and spatial changes in social vulnerability to natural hazards in the United States from 1960 to 2000. Social vulnerability is defined as the sensitivity of a population to natural hazards and its ability to respond and recover from their impacts. The authors use the Social Vulnerability Index (SoVI) to measure and analyze these changes at the county level. Key findings include: 1. **Consistent Components**: Density (urban), race/ethnicity, and socioeconomic status consistently increased social vulnerability over time. 2. **Spatial Pattern**: Initially concentrated in specific regions, the spatial patterning of social vulnerability became more dispersed over time. 3. **National Trend**: There was a steady reduction in social vulnerability nationally, but regional variability was significant, with many counties experiencing increases. 4. **Local Changes**: Population changes, particularly depopulation and growth, significantly influenced social vulnerability. For example, counties in the Great Plains experienced increased social vulnerability due to depopulation, while counties near major cities like Los Angeles saw a decrease in social vulnerability due to population growth and economic development. 5. **Future Anticipation**: The projected social vulnerability in 2010 identified priority areas for improvement, such as the North Central United States, the Texas-Mexico border, and metropolitan areas. The authors conclude that social vulnerability is dynamic and influenced by inequality and social and political factors. They suggest that a flexible approach, tailored to local variability, is necessary for effective emergency preparedness, response, and recovery planning.The paper by Cutter and Finch examines the temporal and spatial changes in social vulnerability to natural hazards in the United States from 1960 to 2000. Social vulnerability is defined as the sensitivity of a population to natural hazards and its ability to respond and recover from their impacts. The authors use the Social Vulnerability Index (SoVI) to measure and analyze these changes at the county level. Key findings include: 1. **Consistent Components**: Density (urban), race/ethnicity, and socioeconomic status consistently increased social vulnerability over time. 2. **Spatial Pattern**: Initially concentrated in specific regions, the spatial patterning of social vulnerability became more dispersed over time. 3. **National Trend**: There was a steady reduction in social vulnerability nationally, but regional variability was significant, with many counties experiencing increases. 4. **Local Changes**: Population changes, particularly depopulation and growth, significantly influenced social vulnerability. For example, counties in the Great Plains experienced increased social vulnerability due to depopulation, while counties near major cities like Los Angeles saw a decrease in social vulnerability due to population growth and economic development. 5. **Future Anticipation**: The projected social vulnerability in 2010 identified priority areas for improvement, such as the North Central United States, the Texas-Mexico border, and metropolitan areas. The authors conclude that social vulnerability is dynamic and influenced by inequality and social and political factors. They suggest that a flexible approach, tailored to local variability, is necessary for effective emergency preparedness, response, and recovery planning.
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