Noncommercial - you may not use this work for commercial purpose. Tennessee is the 36th largest and the 16th most populous of the 50 allied States. "Large earthquake paleoseismology in the East Tennessee seismic zone: Results of an 18-month pilot study", Recent Advances in North American Paleoseismology and Neotectonics East of the Rockies, Randel Tom Cox, Martitia P. Tuttle, Oliver S. Boyd, Jacques Locat. Considering the economic impact of the river as well as large corporate headquarters such as FedEx in Memphis, any catastrophe-level seismic activity would devastate the economy on a national, possibly international, level, according to Flener. The known faults in the ETSZ are generally ancient; no known active faults reach the surface. The exact mechanisms of Virginia’s earthquakes are not clearly understood. A basic emergency preparedness kit should include: Here are the most powerful Tennessee earthquakes from the last 100 years, Your California Privacy Rights/Privacy Policy. Moreover, several “fluidization boils” containing shale clasts from below are cut by younger, red, clay-filled fractures. Department of Earth Sciences, University of Memphis, Johnson Hall, Memphis, Tennessee 38152, USA, M. Tuttle & Associates, 128 Tibbetts Lane, Georgetown, Maine 04548, USA, U.S. Geological Survey, 3876 Central Avenue, Suite 2, Mail Stop 966, Memphis, Tennessee, 38152-3050, USA, Département de géologie et de génie géologique, 1065 avenue de la Médecine, Québec G1V 0A6, Canada. According to the USGS, Sunday’s earthquake was rare due to its location in the interior of the North American tectonic plate. You may hear sounds with earthquakes. Magnitude measures energy released on a scale of zero to 10. Upward penetration of at least two generations of fractures, clastic-sediment intrusions, and faults into the Bt horizons of Ultisols at several sites implies that two strong shocks occurred sometime after ~73 ka, and possibly much later than 73 ka. MORE: Here are the most powerful Tennessee earthquakes from the last 100 years. Even the known faults are poorly located at earthquake depths. Attribution: You must attribute the work in the manner specified by the author or licensor (but no in any way that suggests that they endorse you or your use of the work). McGuire Maximum magnitude values The TIP study (Ref. The New Madrid Seismic Zone extends from Northeastern Arkansas into West Tennessee, Southeastern Missouri, Western Kentucky, and Southern Illinois. The SASZ lies primarily in the Valley and Ridge and Blue Ridge physiographic provinces of eastern Tennessee and Western "We expect there to be another catastrophic earthquake," said Flener, referring to the New Madrid earthquake of 1811. 27 June 2017– The Eastern Tennessee Seismic Zone (ETSZ), a zone of small earthquakes stretching from northeastern Alabama to southwestern Virginia, may have generated earthquakes of magnitude 6 or greater within the last 25,000 years, according to a study published in the Bulletin of the Seismological Society of America. The largest earthquakes in the ETSZ are the M4.6 in 1973 near Knoxville, Tennessee and the … Tennessee Interactive 1990 USDA Hardiness Zone Map. “The ETSZ is right along the Smoky Mountains, which are a subrange of the Appalachians,” Cox said. The most recent, a 3.0 magnitude earthquake Wednesday in Clairborne County. The Eastern Tennessee Seismic Zone (ETSZ) is one of the most active areas in the southeastern U.S. Its known faults are generally ancient and no known active faults reach the surface. Seven days' worth of food for each person in your household, including pets. The Eastern Tennessee Seismic Zone (ETSZ), a zone of small seismic faults stretching from northeastern Alabama to southwestern Virginia, may have generated earthquakes of magnitude 6 … This structure, including the Quaternary sediment it contains, is also displaced 10 cm along a NW-trending sinistral fault. According to the USGS, many people report hearing loud "booms" along with seismic … The East Tennessee Seismic Zone (ETSZ) stretches from northeastern Alabama to southwestern Virginia and is one of the most active earthquake zones in the eastern United States. Be financially devastating. `` Tennessee eastern tennessee seismic zone of Commerce & Insurance ’ s earthquakes are ‘ weaker ’... 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