Marianna Fault

It is believed that the Marianna Fault has previously experienced an earthquake that would have measured 7.0 on the Richter scale, and may well do so again.

[4] A major natural gas pipeline is located near the fault, and could be devastated by any such earthquake.

[7] This followed a letter to the same journal a few months before saying that ground-penetrating radar (GPR) was being used to study "large elliptical sand deposits" near Marianna.

The lack of seismic equipment in the vicinity is one factor in the need for additional funding.

[3] The most recent earthquake activity in the area around the fault was located ten miles northeast of Marianna in August 2008.