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Detailed Geologic Studies Of Paleoseismic Features Exposed At Sites In The East Tennessee Seismic Zone: Evidence For Large, Prehistoric Earthquakes, Kathleen Frances Warrell
Detailed Geologic Studies Of Paleoseismic Features Exposed At Sites In The East Tennessee Seismic Zone: Evidence For Large, Prehistoric Earthquakes, Kathleen Frances Warrell
Masters Theses
The East Tennessee seismic zone (ETSZ) is the second most active in the eastern United States, but recorded earthquakes do not exceed Mw [moment magnitude] = 4.6. Earthquake epicenters are located 5-26 kilometers deep in autochthonous basement, and faults producing these earthquakes do not break the surface. Detailed paleoseismic investigations at sites within the ETSZ include: detailed geological mapping, trenching, aerial photograph reconnaissance, X-ray diffraction (XRD), grain-size analysis, and optically stimulated luminescence dating of alluvium.
Site DL-6 near Dandridge, Tennessee, reveals a complex array of features providing evidence that at least 4‒6 Mw > 6 earthquakes affected the area. …