A new set of focal mechanisms is determined for the eastern Tennessee seismic zone (ETSZ). The 26 solutions are consistent with previous solutions in the northern and middle portions of the ETSZ and extend coverage into the southern portion. The solutions exhibit strike-slip and oblique normal faulting, with nodal planes generally oriented N-S/E-W and NE-SW/NW-SE. Strike-slip solutions dominate the middle and northern portions of the zone. To the south, near the Tennessee/Georgia border, a group of focal mechanisms for relatively shallow events exhibit normal faulting. To examine a possible cause of the normal faulting, a geodynamic model is developed which simulates a delamination of the lower crust. Evidence for delamination has been seen elsewhere in the southern Appalachians. Results from this model suggest that delamination is a possible cause of localized, shallow normal faulting.

"The chapters in this guidebook are organized according to major geologic themes, starting first with field trips in the Knoxville area that highlight, in some way, local carbonates, and then by ending with field trips focused on regional tectonics that include travel to North and South Carolina and Georgia"--

“This report presents documentation for the development of seismicity parameters to be used as input for probabilistic seismic hazard analyses at the Savannah River Site in South Carolina. The hazard analysis is to be conducted by personnel at the Lawrence Livermore National Laboratory and the author was one of several parameters of seismic zonation, maximum magnitude estimates.”

This book first focuses on the explanation of the theory about focal mechanisms and moment tensor solutions and their role in the modern seismology. The second part of the book compiles several state-of-the-art case studies in different seismotectonic settings of the planet.The assessment of seismic hazard and the reduction of losses due to future earthquakes is probably the most important contribution of seismology to society. In this regard, the understanding of reliable determination seismic source and of its uncertainty can play a key role in contributing to geodynamic investigation, seismic hazard assessment and earthquake studies. In the last two decades, the use of waveforms recorded at local-to-regional distances has increased considerably. Waveform modeling has been used also to estimate faulting parameters of small-to-moderate sized earthquakes.