We model the history of landscape evolution above the ETSZ and show that a zone of weak rocks allowed for focused erosion above the seismic zone. While some zones, such as the New Madrid Seismic Zone, may be more widely known, others such as the East Tennessee and Central Virginia Seismic Zones can also produce damaging earthquakes at any time. The largest earthquakes in the ETSZ are the M4.6 in 1973 near Knoxville, Tennessee and the … Eastern Tennessee has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 2 earthquakes in the past 7 days; 7 earthquakes in the past 30 days; 85 earthquakes in the past 365 days Noncommercial - you may not use this work for commercial purpose. 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. "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. Two exposures in terrace alluvium E and W of the Tennessee Highway 92 bridge S of Dandridge, Tennessee, were graded and geologically mapped at 1 in. "The consequences (of earthquakes) can be financially devastating.". Tennessee Interactive 1990 USDA Hardiness Zone Map. Please check your email address / username and password and try again. The Eastern Tennessee seismic zone is far from the nearest plate boundaries, which are in the center of the Atlantic Ocean and in the Caribbean Sea. Using stress models, we demonstrate Eastern Tennessee has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 4 earthquakes in the past 30 days; 74 earthquakes in the past 365 days The most recent, a 3.0 magnitude earthquake Wednesday in Clairborne County. The East Tennessee seismic zone is one of the most active seismic zones in this part of the country, but the area is not prepared in case of a larger quakeo Impact of Earthquakes on the Central USA: Author(s): Elnashai; (WVSZ) and a magnitude Mw5.9 in the East Tennessee Seismic Zone (ETSZ) earthquakes. The Eastern Tennessee Seismic Zone (ETSZ) is also known as the East Tennessee Seismic Zone MORE: Here are the most powerful Tennessee earthquakes from the last 100 years Masonry brick-and-mortar buildings are the most likely to sustain significant damage if tremors reach the Nashville area. The East Tennessee fault line, which runs from Chattanooga, through Knoxville and into North Carolina, is only part of a larger seismic zone, and it's pretty active, Whaley said. the eastern Tennessee seismic zone (ETSZ), the second most seismically active region in the central and eastern United States. John Bellini, a geophysicist with USGS, said “there is a history of earthquakes” in the Eastern Tennessee Seismic Zone, which extends into northwest Georgia and northeast Alabama. We mapped concentrations of sackungen (ridgetop spreading features) on bluffs along the eastern Mississippi River valley in northwestern Tennessee that likely form or are reactivated during large earthquakes. and the East Tennessee Seismic Zone that runs into Alabama: These are not like the faults in California , which last had a major earthquake in 1994, when the magnitude 6.7 Northridge temblor killed 57 people and caused $20 billion in damages. 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. Closer to home in the Tennessee Valley, both the New Madrid Fault Zone and East Tennessee Seismic Zone are considered to be deeply imbedded zones within the earth’s crust. While some zones, such as the New Madrid Seismic Zone, may be more widely known, others such as the East Tennessee and Central Virginia Seismic Zones can also produce damaging earthquakes at any time. By continuing to use our website, you are agreeing to our, American Association of Petroleum Geologists, Cushman Foundation for Foraminiferal Research, Mineralogical Society of Great Britain and Ireland, Seismotectonics of the southern Appalachians, Focal mechanism analyses for eastern Tennessee earthquakes (1981-1983), State of stress in central and eastern North American seismic zones, A statistical analysis of earthquake focal mechanisms and epicenter locations in the eastern Tennessee seismic zone, Estimating the seismicity from geological structure for seismic-risk studies, Preliminary Assessment of a Previously Unknown Fault Zone beneath the Daytona Beach Sand Blow Cluster near Marianna, Arkansas, Quaternary faulting along the Dandridge-Vonore fault zone in the Eastern Tennessee seismic zone, Critical evidence for southern Appalachian Valley and Ridge thrust sequence, Geologic framework and evidence for neotectonism in the epicentral area of the 2011 Mineral, Virginia, earthquake, Origin of the Blytheville Arch, and long-term displacement on the New Madrid seismic zone, central United States, Structural controls on intraplate earthquakes in the eastern United States, Mesoscale faults, macroscale folds, and inferred basement structures, Nashville dome, central Tennessee. 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