Where Is the New Madrid Fault Line in Arkansas?

By Robert Palmer

The New Madrid Fault Line is a well-known geological feature that runs through several states in the United States, including Arkansas. This fault line is known for its seismic activity and has been responsible for several earthquakes in the past. In this article, we will explore where exactly the New Madrid Fault Line is located in Arkansas.

What is the New Madrid Fault Line?

The New Madrid Fault Line is a geological fault zone that extends from Marked Tree in northeastern Arkansas to Cairo, Illinois. It passes through five states in total: Arkansas, Missouri, Tennessee, Kentucky and Illinois.

This fault zone was responsible for a series of devastating earthquakes that occurred in 1811 and 1812. These earthquakes were some of the largest ever recorded in North America and were felt as far away as Boston and Washington D.C.

Where is the New Madrid Fault Line located in Arkansas?

In Arkansas, the New Madrid Fault Line runs along the eastern edge of the Ozark Plateau. It passes through several cities and towns including Blytheville, Jonesboro and Memphis.

Blytheville

Blytheville is a city located in northeastern Arkansas. The New Madrid Fault Line runs just east of Blytheville and has been responsible for several small earthquakes in the area over the years.

Jonesboro

Jonesboro is another city located in northeastern Arkansas. The New Madrid Fault Line runs just west of Jonesboro and has also been responsible for several small earthquakes in this area.

Memphis

Memphis is a major city located on the western edge of Tennessee. The New Madrid Fault Line runs just south of Memphis and has been responsible for several large earthquakes over the years.

  • In 1811-1812, three large earthquakes struck this area with magnitudes estimated to be between 7.0 and 8.0 on the Richter scale.
  • Another large earthquake struck Memphis in 1865 with an estimated magnitude of 5.0.
  • In 1927, a major flood along the Mississippi River caused several large earthquakes in this area.

Conclusion

The New Madrid Fault Line is a significant geological feature that runs through several states in the United States, including Arkansas. While it has been responsible for several small earthquakes in recent years, experts continue to monitor this fault zone closely for any signs of increased seismic activity. If you live in an area that is near the New Madrid Fault Line, it’s important to be prepared for earthquakes and have an emergency plan in place.