A related area named for the Wabash River is located to its north and a related fault was recently discovered near Marianna to its south.
Although the Enola Swarm was located near this area, it was not related to activity within this region. Located at an aulacogen that resulted from the failed Rodinia mid-continent rift, it was re-activated in the Triassic and experiened extensive instrusive igneous activity. A related area named for the Wabash River is located to its north and a related fault was recently discovered near Marianna to its south. A temblor near Marked Tree in 1843 delineated its southern limit while future activity within this area atop the ? Mississippi embayment could be on the level of an 8.0 event that resulted in numerous sand blows, cross-river exclaves like Kentucky bend, and the complete destruction of a namesake community. With most of its activity generated by a fault called the Reelfoot Rift, for 10 points identify this seismically active area located in West Tennesse, Eastern Arkansas, and the Bootheel of Missouri that produced a series of major earthquakes in 1812 and 1813.
Although the Enola Swarm was located near this area, it was not related to activity within this region.
{New Madrid} Seismic Zone [Prompt on {Reelfoot Rift} before mentioned; do not prompt on {Mississippi Embayment}]