Thyroid replacement hormones usually are well tolerated. Symptoms that occur during treatment are often due to toxic, elevated levels of thyroid hormones and resulting symptoms from hyperthyroidism.
Facts about the New Madrid Seismic Zone. The New Madrid Seismic Zone (NMSZ) is the most active seismic area in the United States east of the Rocky Mountains. The NMSZ is located in southeastern Missouri, northeastern Arkansas, western Tennessee, western Kentucky and southern Illinois.
The biggest earthquakes in the history of the United States were caused by the New Madrid fault. Now there are fears that the New Madrid fault zone could be coming to life again, and if a âkiller earthquakeâ does strike it could change all of our lives forever.ccording to a recent study by the University of Illinois, a 7.7-magnitude earthquake along the New Madrid fault would leave 3,500 people dead, more than 80,000 injured and more than 7 million homeless. Roadways would become impassible due to bridge failures and roadway destruction.