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What do you think is the biggest difference between the ocean perspective and the land perspective?

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. 

Thae laws are examined and explained to the reader. Examples of citations from physicians are also included with stories of the individual's journey and experiences.

The study addresses the survivors of Katrina fairly soon after the disaster, at a time when they likely do not have much stability. Many were without homes, may have lost family or friends, neighborhoods were torn apart, schools were destroyed, and money was very thin. It was not an easy time, so focusing on this group at such a stressful time was the goal of the study.