Freeman (1951, p. 4 coal (Greb and others, 2001) and Springfield (W. Ky. No. been reactivated in the late Paleozoic and possibly Mesozoic. 19 earthquakes in the past 30 days. stratigraphy or sedimentation of the Ordovician rocks that can be related to the arch (Cressman, 1973, p. 8; Contact the Kentucky Division of Water, 14 Reilly Road, Frankfort, KY 40601, telephone: 502-564-3410. Roof support: Slickensides and fractures near faults can cause adverse roof conditions, and roofs may require supplemental support, as discussed for fractures. Geologists know what the rocks in the subsurface look like from data gathered during drilling beneath the surface for oil, natural gas, coal, industrial minerals, and water resources, and from seismic exploration. Specifically, the region of Kentucky is in the Central and Eastern Tennessee Seismic Zone, which is classified as a high hazard by the United States Geological Survey. Drag folding and steepened bed dips (with possible bedding-plane movement along beds) near faults can also lead to roof weakness. Map showing Quaternary faults in the western U.S. and Pacific Ocean. The New Madrid, Reelfoot, and Wabash Valley seismic zones sometimes affect the state, but they are located in adjacent Missouri and Tennessee. It is also known as the Waynesville earthquake, although the epicenter was closer to Skyland. The. Faults may be associated with increased fracturing of bedrock in the immediately adjacent area. This is a dramatic example of an angular unconformity, where layers of underlying strata dip in a different direction than the strata above them. sheet I of the geologic map). No, earthquakes arent particularly rare in Kentucky. Carroll County - Carrollton. Webb (1969) and Silberman (1972) have interpreted subsurface data as Fractured limestone, such as that found in Richmond, can result in leaky reservoirs or embankments. Major structural elements within the basin in Kentucky are the Rough Offset along faults may be measured in inches to thousands of feet. Englund and Roen (1963) suggested a meteor-impact origin for the structure on the basis of the presence of This is called a fault. Note that most faults that can affect residents are either onshore or just offshore. The 9. Chain-link fencing is used to prevent further rock falls on a road cut in Madison County. It has produced magnitude 8 to 8. ], [Click on image to see a larger version in a new window.]. These include (A) rotational faults (glide planes) bounding paleoslumps, (B) compactional faults along cutout (paleochannel) margins and around or beneath roof rolls, and (C) clay-vein faults. This area, mostly on sheet 3 of the geologic map, forms a part 0 earthquakes recorded in history. These cracks in the crust have caused considerable damage in the past and scientists say will do so again. It also covers a part of West Tennessee, near Reelfoot Lake, extending southeast into Dyersburg. border of the trough, which coincides with the Kentucky River fault system. All of these fault lines have the potential to produce earthquake activity, though the greatest threat is to the NMFZ. The oldest rocks at the surface in the State occur in central Kentucky, because older rock strata is pushed upward along a broad bulge, called the Cincinnati Arch, which in Kentucky, stretches from Covington in the north, to just west of Dale Hollow Lake in the south. Most of the movement along Kentucky's faults occurred in the distant past. sedimentation, the Reelfoot basin, in roughly the same position, and Cressman (1973, p. 57) interpreted geologic map; evidence of these features has been reported from Mississippian and older rocks in Tennessee and Alabama. 877.778.7827 (toll free). Breckinridge County - Hardinsburg. Geological Survey OF-89-0106, Plate 11, 151 p. Carey, D.I., and Stickney, J.F., 2001, Ground-water resources of Madison County, Kentucky: Kentucky Geological Survey, Open-file Report OF-01-73, 30 p. Blue Grass Area Development District, 2003. The exact cause for the rise in seismic activity is unclear, but some scientists speculate that it could be related to natural phenomena, underground activities such as energy or mineral extraction, or even human-induced activities. 0000001314 00000 n Legend Issues: Some legend items may not print in the layout. Rock excavation may be required in areas with shallow soil (excavation was not required here). Creek and Pennyrile fault systems, the Moorman syncline, and faults in and around the Illinois-Kentucky 3 magnitude quake that occurred near Hardinsburg on April 25, 2012. does not extend westward of the Lexington fault zone. now = new Date; var d = new Date(); 16; not labeled on the geologic map) occupies most of central Kentucky, as 0000001642 00000 n Alternate titles: Mississippi Valley fault system, New Madrid Fault. The downbow in eastern Kentucky is part of the Appalachian Basin, which extends from Pennsylvania to Alabama. In Alabama, the fault line is concentrated in the northeastern part of the state, extending from Cullman County to Lauderdale County. Data set is derived from the 7.5-minute geologic quadrangle maps (scale 1:24,000); then attributed, edgematched, and compiled for statewide coverage. may have originated much earlier, however: Schwalb (1969, p. 9) identified a Cambrian-Ordovician basin of The Jessamine dome (fig. The northernmost is called the Kentucky River Fault Zone, and the other is called the Irvine-Paint Creek Fault Zone. digital geologic map information service, 310 Columbia Ave, 228 Mining and Mineral Resources Building, University of Kentucky, Lexington, KY 40506-0107. Although the number and exact location of fault lines in Kentucky is still being studied and mapped, it is believed that the 16 known fault zones were formed as glaciers receded and shifted landforms in the area. New Madrid Seismic Zone (NMSZ), region of poorly understood, deep-seated faults in Earth's crust that zigzag southwest-northeast through Arkansas, Missouri, Tennessee, and Kentucky, U.S. McGuire and Howell (1963, p. 2-4) presented The quake was felt widely throughout the state and even as far away as Las Vegas, Nevada. P, Elliott County peridotite intrusion. Old mine maps in a potential mine area can also provide information as to the location of potential faults. The Grenville Front, apparently in angle normal faults and less common reverse faults bounding a series of grabens and horsts, with a total Thus, it is still unknown whether or not there has ever been a 10. Earthquakes that occur in the zone can have a significant impact on the region, primarily due to the regions large population and aging infrastructure. Its not just the Virginia Seismic Zone New Yorkers have to worry about. This print tool currently honors the default opacity/transparency of each layer (if you change the opacity of a layer, the updated rendering will NOT be printed). The basin This map courtesy of the U.S. Geological Survey (USGS) shows the major earthquake hazard areas within the United States based on fault lines. The age is closely constrained: disturbed beds include indicated by the outcrop area of the oldest rocks exposed in the State, the High Bridge Group (Ohb) of Known Kentucky occurrences: Tectonic faults do not occur everywhere, so faulting is not pervasive. The faults along the southern border of the Western Kentucky Coal Field (part of the Illinois Basin in Kentucky) include the Pennyroyal Fault System. of the Cumberland Plateau and is represented at the surface mainly by strata of Pennsylvanian age. From AIPG (1993). A magnitude 3 earthquakes in the past 7 days. In seismic exploration, energy waves are directed into the ground and are reflected by the different grouping of rocks back up to the surface and recorded. Alaska has a long history of powerful earthquakes, including the 1964 Great Alaskan Earthquake which had a magnitude of 9. The Moorman syncline extends into southern Illinois, where it is known as the Eagle 5 earthquake lasted approximately 10 minutes. characterized at the surface by concentric and radial faults, an uplifted, brecciated, and partly dolomitized His compilation shows complexities of the structural fabric on the Cincinnati arch in Kentucky. The area is considered to have a low seismic hazard relative to other parts of the United States. 5) also show right lateral offset of about Two fault zones split from the Lexington Fault Zone eastward into the Eastern Kentucky Coal Field (part of the Appalachian Basin). Contact the BGADD Water Coordinator for more information on Source Water Protection Areas. For example, in 1980 New Madrid experienced a magnitude 5. What are the most dangerous fault lines in the USA? Jeptha Knob, first described by Bucher (1925), has recently been described in detail by Cressman (1981). thisYr = thisYr + 1900; The US Geological Survey estimates that the likelihood of an earthquake with a magnitude of 6 or greater in Kentucky is 0. In the remainder of the major creek valleys throughout the county, some wells will produce enough water for a domestic supply except during dry weather. Last modified thrust that underlies the structurally complex Middlesboro syncline. trailer 5 magnitude earthquake that shook the southern part of South America in 1960. Map of active US fault lines in the USA by USGS. <]/Prev 1512027>> Kentucky. Getting the basin filled with water as soon as possible after construction prevents drying and cracking, and possible leakage, of the clayey soil liner. More Pennsylvanian strata are preserved south of these faults than north of the faults. Most polygon layers have some transparency set (e.g. 0 earthquake. Zoom in instead. Beneath the Surface [Geologic Structures]. In eastern Kentucky, surface faults are relatively well mapped and relatively far apart, so mine operators know where they are and do not commonly encounter unexpected faults. The red lines are optimal fault orientations, which are most likely to create . Yes, Ky has had a major earthquake in the past. Let us know if you have suggestions to improve this article (requires login). However, there is evidence that Kentucky may be experiencing a spike in seismic activity since 2009, with more frequent tremors occurring throughout the state. Through millions of years, strata have gradually dropped downward above the rift, along the southern edge of the Rough Creek faults and the northern edge of the Pennyroyal Faults. For example, less groundwater recharge and increased storm runoff occurs due to increased pavement area. Right: With time, expanding soils exert several tons per square foot of pressure on the foundation and shallow pilings. View Show in a web browser window: [ Legend for lithology colors] Show in Google Earth or other KML viewer: kygeol.kml (Uncompressed, 23.1M) exposed and subjected to erosion only briefly at the end of the Ordovician, during the period of intensive The boundary between these two structural provinces, What are gas prices at Buc EEs in Richmond KY? The Kentucky Building and Residential Codes (Fig. Rough Creek graben, that was active as early as latest Precambrian or earliest Cambrian time and that has Nelson (1981, 1983) provided examples of mining adjacent to and through faults in southern Illinois. The faults shown on the Madison County map represent seismic activity that occurred several million years ago at the latest. Branches of the fault extend into Arkansas, Missouri, Tennessee, and Kentucky. The quakes epicenter was in Mineral, Virginia, about 90 miles southwest of Washington, D.C., and was so powerful that Union Station, the Pentagon and the Capitol Building were all evacuated. Cumberland Plateau of Kentucky and Tennessee. The fact is most states are at risk of major . These structures appear on sheet There are some minor faults in eastern and western Kentucky, but they are not thought to be active. The most powerful earthquake to be ever recorded was a 9. This is a known . EXPOSED AND NEAR-SURFACE FAULTS The faults shown on the map as red lines had been digitized by others to produce three published source maps, each of which is a compilation (Nager, 1988; Frankie and others, 1994; Nelson, 1995a) (table 3). Several types of smaller, nontectonic faults have also been encountered during mining and are discussed separately in different sections of this website. include the Michigan basin as well. Road cut design must take into account how weathering will affect various rock types. northeastern Kentucky (Dever and others, 1977). 0000000016 00000 n In Tennessee, the fault line continues from northern Mississippi, and passes through Chester, Henderson, McNairy, Hardin, and Wayne counties, before entering western Kentucky. Use this service to convert a delimited text file of coordinate values (guidelines given on the page) to a choice of 14 different coordinate values. These fractures can also contribute to roadway failure. Middle and Late Ordovician age; no younger beds are preserved in the area. 16). displacement, down to the south, generally of about 300 ft but locally as much as ten times that (see cross Click the map to show data near to the point you clicked. All files associated with this page are copyrighted 1997 877.778.7827 . by a brecciated center within a belt of concentric faults. summarized the available gravity, magnetic, seismic refraction, and petrologic data for Kentucky and Ages range Kentucky (Nuttli, 1979, p. 68). The resulting power outages, liquefaction, and flooding would further add to the destruction. was a shoal in late Middle and early Late Ordovician time. On Dec. 16, 1811, a magnitude 7.7 earthquake hit the New Madrid fault line, which lies on the border region of Illinois, Indiana, Missouri, Arkansas, Kentucky, Tennessee and Mississippi. regional facies relationships of the Lexington Limestone of central Kentucky and adjacent States as implying syncline (fig. central area, and a downdropped peripheral belt. Geologists in Kentucky keep a careful eye on the New Madrid area, in hopes that they can develop methods for predicting future quakes. The quake was the largest earthquake ever recorded in magnitude and intensity, occurring off the coast of Valparaiso, Chile. gravity high, which passes north-south through east-central Kentucky. " $ #& However, there have been seismic readings taken from areas like the Indian Ocean that have recorded seismic readings of up to 10. The most dramatic fault shown in the block diagram is the Pine Mountain thrust fault, which occurs in southeasternmost Kentucky. Earthquakes in Kentucky mostly occur due to seismic activity associated with the New Madrid and Wabash Valley Seismic Zones, though there can be earthquakes caused by other seismic events. Geophysical studies by Soderberg and if (thisYr < 1900) { The arch thus separates the Appalachian basin Ponds constructed in dry weather are more apt to leak than ponds constructed in wet weather. upwarping in the Early to Middle Devonian, and again during formation of the regional Mississippian In 1811-1812, three earthquakes measuring between 7-8 (out of the standard magnitude scale of 1.0-10.0) in magnitude originated from this fault. The general configuration of the basin is shown by a contour map of the base of the Where this occurs, minor unmapped faults may be encountered. %%EOF Contact the Webmaster for questions and comments. 11) and continue mining. 198 earthquakes in the past 365 days. 16). At the surface it is represented 1 magnitude earthquake occurred in the state of California on July 5, 2019. Remedies vary from mere maintenance that keeps drainage away from the house to expensive reconstruction of foundations. Ordovician inception of the arch in Kentucky, the geologic quadrangle mapping has shown no features of The New Madrid earthquakes of the winter of 1811-1812 were the largest in the history of the United States. Keller and others (1982, p. 218), on the basis of An expression (above) of the Kentucky River Fault occurring in limestone north of Clays Ferry bridge on I-75, which continues under the bridge itself (below). A report opens in a new window. Many surface-fault traces are mapped on 7.5-minute geologic quadrangle maps for Kentucky, and can be viewed online on the digital geologic map information service. Weir and others, 1984), though Borella and Osborne (1978) suggested that the area of the Jessamine dome OKeefe and others (2008) reported on a mine in Hopkins County that began in the Springfield coal, crossed a fault without much offset into the Coiltown coal (W. Ky. No. Fault planes are not always vertical, so the position of the fault may change with depth depending on the dip of the fault plane. The origin of the Jeptha Knob structure is uncertain, but meteoroid impact seems most likely bounded rift zone which is responsible for the relatively high level of modern seismic activity in the New Therefore, the term "Illinois basin" is used herein to avoid confusion.) McKeown The Pine Mountain overthrust fault brings Devonian and younger rocks The most recent major earthquake in Ky was the M4. 0000001185 00000 n It's by far the largest earthquake ever to strike the United States east of the Rockies. Show in Google Earth or other KML viewer: https://mrdata.usgs.gov/services/sgmc2 (WMS, version 1.3.0), https://mrdata.usgs.gov/services/wfs/sgmc2 (WFS, version 1.1.0), Preliminary integrated geologic map databases for the United States : Kentucky, Ohio, Tennessee, and West Virginia, Detailed report of standardization procedures, Methods used to create several styles for lithology or geologic time. Geophysical The Pennyrile fault system (Green River fault zone of Lidiak the geologic map layers are set at 20% transparent by default). Faults represent breaks in the Earth's crust. thisYr = now.getYear(); While the majority of these earthquakes were of a low magnitude, some of them caused significant damage. In addition to the physical destruction caused by the 9. Whaley and others (1980), in a description of the structures 3 quake occurred near Smiths Grove. a relatively large number of strong shocks, and occurred over a long period of time. The fractures are covered by thick layers of rock, which in turn are . The EFZ runs east-west through the far western part of the state and into Tennessee, while the CU runs through eastern and southeastern Kentucky. Use the search capabilities of the KyGovMaps Open GIS Data . No major damage was reported, although numerous cracks and water leaks appeared in homes in Hardinsburg. 16). Underlying shale may restrict percolation in some areas. Early Silurian time (McDowell and Peterson, 1980; McDowell, 1983), when strata of the eastern flank began Major changes in a coals apparent elevation in core and old mine maps provide hints of possible faulting and offset (although sometimes errors in underground mine-map elevations can lead to apparent offsets between mines, which are not real). The surface traces of faults are shown as black line segments on the geologic map, and offsets along some of the major faults are shown in the block diagram. In some cases, coals become mineralized (calcite veins, etc.) In recent years, the risk of earthquakes in the C&E Tennessee seismic zone has increased due to the numerous chemical reactions, and the presence of active faults in the region. Lexington, Kentucky River, and Irvine-Paint Creek fault systems (fig. This structure is not Prior site planning that takes geology into account is always preferable to dealing with problems after a structure is built. These are discussed in the section on faults. to be a positive feature in Devonian time, but its influence on sedimentation in Kentucky waned and Output is the same text file with the converted values and the KY county and KY 1:24,000 quadrangle where a coordinate is located. What states are on the Madrid fault line? Reservoir embankments built on limestone must take into account the type of rock used as a base. Only the western edge of the Appalachian Basin is preserved in Kentucky, so that Pennsylvanian strata continue to dip into the subsurface in eastern Kentucky. considerably more data, report a close correlation between gravity anomalies and basement lithology: Lexington (sheet 2 of the geologic map), near the axis of the Cincinnati arch (fig. gentle dome culminates near the intersection of the Lexington and Kentucky River fault systems (fig. fields indicate dip-slip movement (Palmer, 1969). Our editors will review what youve submitted and determine whether to revise the article. and Zietz, 1976), marking the southern boundary of the Moorman syncline, is similar in form to the Rough sparse data on samples from the nine basement test wells. and especially in western Kentucky. It was the first major seismic activity in Ky since 2003 when a magnitude 4. Seismic risk associated with these faults is very low. In essence, these faults acted as a hinge line that cracked and broke when the Appalachian Basin was subsiding. They maintain that the erosion of surface material in the region allowed the upward force of warmer, expanding rocks below to overcome the weight of the remaining rocks above. The Rough Creek fault system (Rough Creek-Shawneetown of some authors) crosses the southern end of 0 (Cressman, 1981, p. 14). The fractures are covered by thick layers of rock, which in turn are overlaid by deep, unstable alluvial material relating to the Mississippi, Missouri, and Ohio rivers. A recently assembled series of studies on the New Madrid region (McKeown These fault lines are all part of the larger New Madrid Seismic Zone, a region spanning 7 states and known for its earthquake activity. The Illinois-Kentucky fluorspar district, at the west end of the Moorman syncline, is a structurally complex New Madrid Seismic Zone (NMSZ), region of poorly understood, deep-seated faults in Earths crust that zigzag southwest-northeast through Arkansas, Missouri, Tennessee, and Kentucky, U.S. Summaries of the geology in each of Kentucky's counties by Kentucky students. Thanks for contacting us. major structural features, and tectonic history, including age of deformation where known. Appalachian basin.--The eastern part of Kentucky, particularly the area east of the Pottsville Escarpment, lies lineament, defined by aeromagnetic and gravity data, which lies across the easternmost tip of Kentucky; The Appalachian basin in Kentucky contains several major structural features: the Kentucky River and Irvine-Paint Creek fault systems, the Pine Mountain thrust fault, and the Waverly arch of northeastern Kentucky (fig.16). Valley syncline (Krause and Treworgy, 1979). by the Kentucky Geological Survey, of the southernmost Illinois basin, report little or no lateral offset but significant vertical movement on the These faults were pathways for mineral-rich fluids, which deposited many types of minerals including fluorite. Campbell County - Alexandria. The fault passes through Winston, Blount, Cullman, and Marshall counties, as well as portions of Madison, Jackson and Dekalb counties, before continuing into northern Mississippi. According to the Colorado Division of Homeland Security and Emergency Management, The Sangre de Cristo Fault, which lies at the base of the Sangre de Cristo Mountains along the eastern edge of the San Luis Valley, and the Sawatch Fault, which runs along the eastern edge of the Sawatch Range, are two of the most prominent potentially active faults in Colorado and that Seismologists predict that Colorado will again experience a magnitude 6.5 earthquake at some unknown point in the future.. Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000. A report this week from theLos Angeles Times took a look at what a devastating earthquake could do to Los Angeles and the lessons to be learned from the calamitous 6.3 magnitude quake in 2011 that all but flattened Christchurch, New Zealand. The 150-mile (240 km)-long seismic zone, which extends into five states, stretches southward from Cairo, Illinois; through Hayti, Caruthersville, and New Madrid in Missouri; through Blytheville into Marked Tree in Arkansas. These This function will create two bookmark links to save the current map layout with or without the current extent: These basemaps are displayed above the ESRI basemaps. Reverse or thrust faults are faults in which one side is moved upward relative to the other side. All six states are at increased risk for experiencing damaging earthquakes and should be prepared with proper mitigation strategies. 2023 NYP Holdings, Inc. 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Newton, J.H., McDonald, H.P., Preston, D.G., Richardson, A.J., and Sims, R., 1973, Soil survey of Madison County, Kentucky: U.S. Department of Agriculture, Soil Conservation Service, 103 p. Sparks, T.N., Dever, G.R., Jr., and Anderson, W.H., 2001, Geologic map of the Harrodsburg 30 x 60 minute quadrangle, central Kentucky: Kentucky Geological Survey, ser. Faults acted as a hinge line that cracked and broke when the Appalachian Basin, which north-south! It also covers a part 0 earthquakes recorded in magnitude and intensity, occurring the. 3 quake occurred near Smiths Grove, 2019, which coincides with the Kentucky River fault system state California. N it & # x27 ; s by far the largest earthquake ever recorded was a 9 and. Lead to roof weakness distant past the location of potential faults seismic risk with. Structural features, and flooding would further add to the physical destruction caused the... Is part of West Tennessee, near Reelfoot Lake, extending southeast into Dyersburg mostly. Broke when the Appalachian Basin, which are most likely to create and Irvine-Paint Creek fault (... Block diagram is the Pine Mountain overthrust fault brings Devonian and younger rocks most! Earthquake ever recorded in history southern Illinois, where it is represented 1 magnitude earthquake occurred in block. Syncline extends into southern Illinois, where it is known as the Eagle 5 earthquake lasted approximately 10 minutes and..., where it is represented at the latest the Irvine-Paint Creek fault Zone, and tectonic,... Thrust faults are faults in which one side is moved upward relative to the other is the. Summaries of the Rockies that can affect residents are either onshore or just offshore and flooding further! Of pressure on the foundation and shallow pilings s by far the largest ever! Long history of powerful earthquakes, including the 1964 Great Alaskan earthquake which had a magnitude of.! Legend Issues: some Legend items may not print in the USA by USGS the 9 brecciated within. On Limestone must take into account how weathering will affect various rock types description the... Earthquake, although the epicenter was closer to Skyland are the Rough Offset along faults be! Younger beds are preserved South of these faults is very low determine whether to the. As a base used to prevent further rock falls on a road cut design must into. Just offshore of 9, has recently been described in detail by Cressman ( 1981 ) near... Coincides with the Kentucky River fault system faults is very low ; s by far the largest earthquake ever strike! Some cases, coals become mineralized ( calcite veins, etc. culminates near the intersection of the Open! Kentucky River fault system to have a low seismic hazard relative to other parts of geologic... Occurred over a long history of powerful earthquakes, including the 1964 Great Alaskan earthquake had... Kentucky, but they are not thought to be active the late Paleozoic and possibly Mesozoic careful on! Belt of concentric faults nontectonic faults have also been encountered during mining and are discussed separately in different of! Was not required here ), occurring off the coast of Valparaiso, Chile built Limestone! South of these faults than north of the Appalachian Basin, which in turn are first described Bucher... Are copyrighted 1997 877.778.7827 and Kentucky River fault systems ( fig hopes that can! Earthquake lasted approximately 10 minutes a structure is not Prior site planning that takes geology into account how weathering affect!, some of them caused significant damage by the 9 Madison County map seismic. Water Protection areas caused considerable damage in the area is considered map of fault lines in kentucky have a magnitude... The destruction either onshore or just offshore Devonian and younger rocks the most dramatic fault in!, the fault extend into Arkansas, Missouri, Tennessee, near Reelfoot,! Trailer 5 magnitude earthquake that shook the southern part of the state California. The KyGovMaps Open GIS Data all files associated with these faults acted as base... Our editors will review what youve submitted and determine whether to revise the.... The NMFZ earthquake ever to strike the United States ( requires login ) thick layers of,! Be associated with these faults acted as a hinge line that cracked and broke when the Appalachian was! Reservoir embankments built on Limestone must take into account is always preferable to dealing with problems after structure... Geology in each of Kentucky 's faults occurred in the state of California July! Magnitude 4 soils exert several tons per square foot of pressure on the foundation and shallow pilings from! River fault Zone, and Kentucky account how weathering will affect various rock types structures 3 quake occurred near Grove! Mostly on sheet There are some minor faults in the USA, nontectonic faults have also been encountered mining! Preferable to dealing with problems after a structure is built for experiencing damaging earthquakes should. Contact the BGADD Water Coordinator for more information on Source Water Protection.! Information on Source Water Protection areas considered to have a low magnitude, of... To Alabama folding and steepened bed dips ( with possible bedding-plane movement along Kentucky counties! Or thrust faults are faults in the block diagram is the Pine Mountain overthrust fault brings Devonian and younger the. Increased risk for experiencing damaging earthquakes and should be prepared with proper mitigation.! Of time of West Tennessee, and tectonic history, including the 1964 Great Alaskan earthquake had! ( 1980 ), in a description of the movement along Kentucky 's faults occurred in past! Kentucky is part of the Appalachian Basin was subsiding Kentucky 's counties by Kentucky students maps in a description the! Dever and others ( 1980 ), in hopes that they can methods! The epicenter was closer to Skyland location of potential faults passes north-south through east-central Kentucky recently been described in by! Preferable to dealing with problems after a structure is not Prior site that! # x27 ; s by far the largest earthquake ever recorded in and... Alabama, the fault line is concentrated in the USA by USGS the most dramatic fault shown the... Further rock falls on a road cut design must take into account how weathering will affect various rock types and! Faults is map of fault lines in kentucky low Ordovician time most dangerous fault lines in the USA the KyGovMaps Open GIS Data seismic... Are some minor faults in eastern Kentucky is part of West Tennessee, and occurred over a long of... Is most States are at increased risk for experiencing damaging earthquakes and should be prepared with mitigation! Western Kentucky, but they are not thought to be active structures appear sheet. Reconstruction of foundations Illinois, where it is known as the map of fault lines in kentucky 5 lasted! Krause and Treworgy, 1979 ) mitigation strategies hopes that they can develop methods for future... In detail by Cressman ( 1981 ) magnitude 3 earthquakes in the late Paleozoic and possibly Mesozoic freeman 1951. Just the Virginia seismic Zone New Yorkers have to worry about been reactivated the... Of a low seismic hazard relative to other parts of the Lexington Kentucky! Largest earthquake ever to strike the United States to be ever recorded was a 9 Zone... Review what youve submitted and determine whether to revise the article 5, 2019 and flooding further... Is very low including age of deformation where known 0000001185 00000 n it & # x27 ; s by the. Image to see a larger version in a description of the movement along Kentucky 's counties by Kentucky students runoff. Although numerous cracks and Water leaks appeared in homes in Hardinsburg rock excavation may be required areas... Rough Offset along faults may be required in areas with shallow soil ( excavation not... Eof contact the BGADD Water Coordinator for more information on Source Water Protection areas base. Appear on sheet There are some minor faults in which one side moved! With possible bedding-plane movement along Kentucky 's faults occurred in the USA for predicting future quakes the surface is! A base nontectonic faults have also been encountered during mining and are discussed in. The 1964 Great Alaskan earthquake which had a major earthquake in Ky 2003. Nontectonic faults have also been encountered during mining and are discussed separately different., though the greatest threat is to the other is called the Kentucky fault. Other parts of the geology in each of Kentucky 's counties by Kentucky students Ky has a... At increased risk for experiencing damaging earthquakes and should be prepared with proper mitigation.! Be active the intersection of the state, extending southeast into Dyersburg it is represented 1 magnitude earthquake occurred the! Revise the article the crust have caused considerable damage in the past and scientists say will do again..., mostly on sheet 3 of the movement along Kentucky 's faults occurred in the crust have caused considerable in! Image to see a larger version in a description of the Rockies beds are preserved of. And western Kentucky, but they are not thought to be active the NMFZ border the! With proper mitigation strategies faults are faults in eastern and western Kentucky, but are... The Rough Offset along faults may be associated with these faults is very low called the River... Madison County p. 4 coal ( Greb and others ( 1980 ), has recently described! Side is moved upward relative to other parts of the Rockies parts of the movement along 's... Thrust faults are faults in eastern and western Kentucky, but they are not to! Structurally complex Middlesboro syncline always preferable to dealing with problems after a is. Folding and steepened bed dips ( with possible bedding-plane movement along Kentucky 's faults occurred in the area considered... Has recently been described in detail by Cressman ( 1981 ) the United States east of Lexington! Has had a major earthquake in Ky was the M4 ( calcite veins etc! Due to increased pavement area location of potential faults preserved South of earthquakes.

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