eastern tennessee seismic zone map

         Sexual Content Excessive Violence This site uses cookies to assist with navigation, analyse your use of our services, and provide content from third parties. Do equations for groundwater flow refer to water density? States for the period 1965 to 1997. Find local businesses, view maps and get driving directions in Google Maps. This map is one of a series of seismicity maps produced by the U.S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. The quake appeared to occur along the Eastern Tennessee Seismic Zone, a southwest-to-northeast belt extending from Alabama to far southwestern Virginia that is the second-most-active quake zone … Although historical data indicate that the region experienced some of the largest intraplate earthquakes in the world, little is known about the causative mechanisms for this seismic activity. The exact mechanisms of … , This article will be permanently flagged as inappropriate and made unaccessible to everyone. This study examines the seismic hazard at a site located in the Eastern Tennessee Seismic Zone (ETSZ) and examines the sensitivity of hazard at that site to different assumptions on seismicity in the region. There are four maps included in the download. Events of magnitude 5–6 are estimated to occur once every 200 to 300 years. Many e… /* 160x600, created 12/31/07 */ Lithologic Controls on Focused Erosion and Intraplate Earthquakes in the Eastern Tennessee Seismic Zone Sean F. Gallen1,2 and J. Ryan Thigpen3 1Department of Geosciences, Colorado State University, Fort Collins, CO, USA, 2Department of Earth Sciences, Geological Institute, ETH Zürich, Zürich, Switzerland, 3Department of Earth and Environmental Sciences, University of Kentucky, 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 may have found a fault that is accommodating the uplift of the Smokies.". Seismicity in the central and eastern United States consists of a low background level and several distinct zones, such as the eastern Tennessee and New Madrid seismic zones. 5G and future 6G terahertz absorbed by water vapour = heating? April 29, 2003 earthquake near Fort Payne, Alabama, Tennessee articles missing geocoordinate data, 1973 Knoxville, Tennessee, earthquake (magnitude 4.6), Center for Earthquake Research and Information, University Of Memphis. Using a technique called optically stimulated luminescence to assign dates to the minerals contained in sediments surrounding these seismic features, Cox and colleagues narrowed the possible ages of these earthquakes to between 25,000 and 15,000 years ago. Click here to sign in with By using our site, you acknowledge that you have read and understand our Privacy Policy The ETSZ is located far from edge of the North American continent and represents a mid-continent or intraplate earthquake zone. Neither your address nor the recipient's address will be used for any other purpose. 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. Randel Cox of the University of Memphis and colleagues searched for signs of ancient earthquakes below the muddy waterline of Douglas Lake, a 1943 Tennessee Valley Authority lake created by impounding the French Broad River. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). 2) used distributions of maximum magnitude M max that are somewhat higher than values used in … Use the links below to find out more about these zones and earthquakes that affect the central and eastern … Thanks to Mapbox for providing amazing maps. Tennessee is bordered by Kentucky to the north, Virginia to the northeast, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, Arkansas to the west, and Missouri to the northwest. Your opinions are important to us. 2.2 Eastern Tennessee Seismic Zone. U.S . In the East Tennessee Seismic Zone, there have been 188 earthquakes of magnitude 2.5 or greater since measurements began in the 1970s. Based on the page Eastern Tennessee. The content is provided for information purposes only. This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. Photo: Wikimedia, CC0. Reproduction Date: The Eastern Tennessee Seismic Zone (ETSZ), also known as the East Tennessee Seismic Zone and the Southern Appalachian Seismic Zone, is a geographic band stretching from northeastern Alabama to southwestern Virginia that is subject to frequent small earthquakes. Map of East Tennessee Click to see large. You can be assured our editors closely monitor every feedback sent and will take appropriate actions. 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 ETSZ is one of the most active earthquake zones in the eastern United States. 1) and TVA Dam Safety study (Ref. [3], The source of seismic activity in the ETSZ is not known. Why is the CO2 level lower in my house than outside? 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. [1] The U.S. Geological Survey estimates that earthquakes as large as magnitude 7.5 are possible in the ETSZ. Eastern Tennessee Seismic Zone: | The |Eastern Tennessee Seismic Zone| (ETSZ), also known as the |East Tennessee Seismic Zo... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled. Get weekly and/or daily updates delivered to your inbox. At two sites along the lake, the researchers uncovered clay-filled fractures, signs of soil liquefaction and polished rock shear fractures called slickenlines, that point to at least three past earthquakes in the area. An additional map shows the locations of historic and modern earthquake epicenters. Quake swarm near the California-Mexico border gets scientists' attention, River sediment history suggests it was climate change, not Mongol invasion that doomed Transoxania, New constraints on alternative gravity theories that could inform dark matter research, Best of Last Year: The top Phys.org articles of 2020, Large ionized bubble around NGC 5585 X-1 investigated in detail, Magnetically controlled, hydrogel-based smart transformers. Are you certain this article is inappropriate? The level of the lake is drawn down in winter to accommodate snowmelt, which exposes river sediments and the signs of past seismic activity. google_ad_width = 728; The ETSZ is one of the most active earthquake zones in the eastern United States. WHEBN0017181125 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. A combination of features convinced Cox and colleagues that they were looking at a record of past earthquakes rather than signs of an ancient landslide. Go back to see more maps of Tennessee  U.S. Maps. Zone 0 = 0.0g Zone 1 = 0.075g Zone 2A = 0.15g Zone 2B = 0.20g Zone 3 = 0.30g ... Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming Memphis Charlotte Louisville St. Louis Jonesboro ... United States Seismic Zones Map. Earthquakes large enough to be felt occur approximately once a year in the ETSZ. Article Id: google_ad_width = 160; Text is available under the CC BY-SA 4.0 license, excluding photos, directions and the map. The largest earthquakes in the ETSZ are the M4.6 in 1973 near Knoxville, Tennessee and the M4.6 on April 29, 2003 near Fort Payne, Alabama. Your email address is used only to let the recipient know who sent the email. /* 728x90, created 7/15/08 */ Tennessee is the 36th largest and the 16th most populous of the 50 allied States. Mw7.0 Greek islands off the coast of western Turkey, Meridional Heat Transfer - Ocean and Atmosphere, Today's Climate Change and the Permian-Triassic Boundary, Science X Daily and the Weekly Email Newsletter are free features that allow you to receive your favorite sci-tech news updates in your email inbox. Three of these maps display the compiled fault data for the individual seismic zones: the Central Virginia Seismic Zone (CVSZ), Giles County Seismic Zone (GCSZ), Eastern Tennessee Seismic Zone (ETSZ). We do not guarantee individual replies due to extremely high volume of correspondence. Earthquakes associated with the ETSZ have included: Hampton Roads, Washington, D.C., Richmond, Virginia, Norfolk, Virginia, American Civil War, Montgomery, Alabama, Mobile, Alabama, Birmingham, Alabama, Auburn University, Mississippi, Tennessee, Knox County, Tennessee, Democratic Party (United States), City, Tennessee Valley Authority, Geology of Chile, Rocky Mountains, Seismology, Knoxville, Tennessee, List of earthquakes in 2003, Montgomery, Alabama, Alabama, Auburn University, Mobile, Alabama, Autauga County, Alabama, Cretaceous, Ordovician, Tennessee, Mississippi Embayment, Devonian, /ia, /ia (U.S. state), Atlanta, Blue Ridge Mountains, Coal, Canada, United States, Lake Erie, Lake Ontario, Basin and Range Province, Canada, Alaska, Northern Cordilleran Volcanic Province, North America, British Columbia, . 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. The few focal mechanisms available suggested mostly right-lateral strike slip on north trending See this page's contributions. 300 km long; 50 km wide; 100 recorded earthquakes/year Largest recorded earthquakes: 4.6 Maryville,TN 1973 4.6 Fort Payne, AL 2003 By using this site, you agree to the Terms of Use and Privacy Policy. You can unsubscribe at any time and we'll never share your details to third parties. The known faults in the ETSZ are generally ancient; no known active faults reach the surface. The Eastern Tennessee Seismic Zone (ETSZ), a zone of small earthquakes stretching from northeastern Alabama to southwestern Virginia, may have generated earthquakes of … Eastern Tennessee Seismic Zone Last updated January 28, 2020. and Terms of Use. Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002. The Eastern Tennessee seismic zone (ETSZ) extends for more than 300 km from southeastern Kentucky southwestward into Alabama and is one of the most active intraplate seismic zones east of the Rocky Mountains on the … This would place them in the late Pleistocene, during the last North American ice age. Alabama (NY-AL)aeromagnetic lineament and on the east by the less prominent Clingman lineament [Nelson cvrt Zietz, 1983]. Cox said it might be possible that these large earthquakes were only active during the late Pleistocene, when seismic stresses in the crust changed with the advance and retreat of massive ice sheets. GEOLOGY | Volume 44 | Number 1 | www.gsapubs.org 39 Grenville basement structure associated with the Eastern Tennessee seismic zone, southeastern USA Christine A. Powell1 and William A. Thomas2 1Center for Earthquake Research and Information, The University of Memphis, Memphis, Tennessee 38152, USA 2Geological Survey of Alabama, Tuscaloosa, Alabama 35486, USA ABSTRACT The Eastern Tennessee … ... Maps of each team’s seismic sources listed in Table 1 are shown in Figures 6-11. 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 or greater within the last 25,000 years, according to a study published June 27 in the Bulletin of the Seismological Society of America. McGuire Maximum magnitude values The TIP study (Ref. Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles. 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