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Seismic St. Louis

Emily Sekine
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I'm interested in better understanding the ongoing geological processes that shape St. Louis and the Mississippi Valley region. So far, I've been looking into the history of seismicity in the region, focusing on the fascinating but little known history of the New Madrid earthquakes of 1811 and 1812 -- the most devastating earthquakes to have hit the US east of the Rockies. I've also been exploring how St. Louis and surrounding areas are dealing with the possibility of another earthquake occurring in the future. According to one article I read, one of the biggest uncertainties is what would happen to the heavily engineered Mississippi River in the case of another major tremblor. The shaking could break the levees, flooding wide areas along the river and creating cascading effects. The flow of the river might also reverse completely, as occurred during the New Madrid earthquakes.

On these possibilities and the lack of scientific consensus surrounding intraplate seismicity in this zone, see this article in The Atlantic.

On current efforts to create earthquake hazard maps in St. Louis, see this overview on the US Geological Survey site.

For a deeper dive into the history of the New Madrid earthquakes, see this book by historian of science Conevery Bolton Valencius. 

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ciera.williams
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This article presents some statistics on common psychological issues post- disaster. PTSD and Major Depression are the two most commonly studied issues in realtion to post-disaster. A realtively new term "resilience" has been brought to the table, defining the ability of people to "bounce-back" after disasters. Substance abuse is another studied issue, with some reporting an increase in substance use following disasters. However, it is noted that the post-disaster abuse of substances is highest in those already using or abusing these ubstances. Other conditions such as generalized anxiety disorder, phobias, and other stress disorders are studied and have links to disaster experience.

The article also discusses some risk factors for post-disaster psychological disorders. Prior to disasters, women tend to be less resilient, and more suscpetible to disorders, excepting substance abuse. Children are especially vulnerable to issues. Socioeconomic status, ethnicity, and community support are also factors in the outcome of a person's mental state post-disaster. During a disaster, the degree of exposure to the incident is the greatest factor in outcome. After a disaster, support network and ongoing life stressors play a large rold in the outcome. The biggests steps to preventing poor outcome post-disaster are prepartion and anticipation of the disaster, and recognition/prevention of mental illness. 

Generally, only a small percentage of victims seek help from services provided for mental health disorders. This makes it difficult to accurately research the affects and prevalence of mental health disorders.