A temblor near Marked Tree in 1843 delineated its southern limit while future activity within this area atop the ?
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}]