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.
Typically, earthquakes in this part of the world with a magnitude of 4.0 donât do damage. However, earthquakes just a little stronger have been known to do minor damage within 25 miles of the epicenter. The New Madrid Fault stretches along the Mississippi River from near St. Louis to Memphis. Learn more about the New Madrid Fault. Info from the USGS: