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.
New Madrid, Missouri. New Madrid is a city in New Madrid County, Missouri, United States. Located on the Kentucky Bend of the Mississippi River, it is 42 miles (68 km) southwest of Cairo, Illinois, and north of an exclave of Fulton County, Kentucky, across the river.