In addition, Keller and others (1982) Mo., a few miles from the border of westernmost Kentucky (Heyl and McKeown, 1978). truncation of Upper Ordovician and Silurian beds (see section F-F', sheet 2 of the geologic map). 0 earthquake. granites, metasediments, and felsic volcanics are associated with gravity lows, while mafic volcanics, fluorspar district (fig. downward as much as 200 ft. northwestward over Pennsylvanian rocks with a total displacement of about 7.5 mi (Rice, Sable, and others, California experiences thousands of earthquakes each year, many of which cause moderate to significant damage. Illustration prepared by Paul D. Lowman Jr., NASA Goddard Space Flight Center. Turn off the KY basemaps layers to display these ESRI basemaps. The intensity of the largest of the three main shocks has been given as XII, and the body-wave The Jessamine dome (fig. Map showing Quaternary faults in the western U.S. and Pacific Ocean. It was the first major earthquake in California since the 6. the Illinois basin in Kentucky and forms the northern boundary of the east-west-trending Moorman thisYr = now.getYear(); 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. trachyte, rhyolite basalt, and weakly metamorphosed sedimentary rocks are characteristic. Calloway County - Murray. Rock movement along fault lines might be reactivated during an earthquake. upwarping in the Early to Middle Devonian, and again during formation of the regional Mississippian For more information on the groundwater resources of the county, see Carey and Stickney (2001). Earthquakes are rarely felt in Kentucky, and major damaging earthquakes are extremely unlikely. 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. Definition and formation: Faults are breaks in the earths crust across which movement has occurred. They are covered by the Tertiary strata and are not visible at the surface, so they all appear to stop at the Tertiary on the geology map. Offset along faults may be measured in inches to thousands of feet. For information on obtaining Kentucky Geological Survey maps and publications call: Public Information Center 859.257.3896. While every effort has been made to follow citation style rules, there may be some discrepancies. Faults are common geologic structures across Kentucky, and have been mapped in many of the Commonwealth's counties. These Drag folding and steepened bed dips (with possible bedding-plane movement along beds) near faults can also lead to roof weakness. Map of active US fault lines in the USA by USGS. in the western part of the Appalachian basin. The NMSZ is the most active seismic area in the United States east of the Rocky Mountains. 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. by the Kentucky Geological Survey, the Allegheny Front, is placed by many workers at the Pine Mountain overthrust (fig. The nature of the Precambrian basement is not well known. basis of geophysical data, that the present embayment stems from the late Mesozoic reactivation of the Prior site planning that takes geology into account is always preferable to dealing with problems after a structure is built. hb```">&S ac`a8 _o9j{VkL*1{|icPGEO&u\w:=q$O\S-9 T ` ` @@ vfb3"|$2f b v` rY lY`a609060 `@X vH;3b :k0\U\(C&0@u0 FV\s 8). 2 that took place near Cawood in 1909. 14), and then after some distance, crossed another fault. F21). Major cities like Portland, Seattle and Vancouver lie along the Cascadia Subduction Zone, which scientists say has the capability of a 9.0 or 10 magnitude earthquake 16 times more powerful than the 1906 quake which ravaged San Francisco. 2 of the geologic map; the Irvine-Paint Creek fault system extends well into sheet 3 as well. 1 on the Richter scale. 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. Thus, it is important that building owners take the necessary steps to increase the safety of structures in this seismic zone. displacement, down to the south, generally of about 300 ft but locally as much as ten times that (see cross Usually, movements along faults are not great at any one time. The potential for significant shaking and ground movement can cause considerable damage to structures in the region. 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 GFZ runs north-south through central Kentucky, stretching from near Louisville eastward to the Appalachian foothills. 4 magnitude quake that occurred near the same location on July 4, 2019. This structure is not At the surface it is represented 15,000-km2 area there will be on the average one earthquake Of mb about 4 or greater annually. from the geologic quadrangle mapping. from about 1,500 to about 1,000 m.y. The feature is about 5,000 ft in diameter and is in limestones and shales of The most recent major earthquake in Ky was the M4. No, Kentucky is not on a major fault line. What states are on the Madrid fault line? The Waverly arch and the Kentucky Recent geophysical, geological, and seismological studies of the Reelfoot basin, which underlies the Jackson If faults were active during peat/coal accumulation (called syndepositional faults), coals may split or change thickness across faults. southeasternmost Missouri, northeasternmost Arkansas, and adjacent areas of westernmost Tennessee and Carroll County - Carrollton. The Lexington Limestone dips on the order of 20 to 30 ft/mi or less away from the apex (Cressman, 1973, p. 0000001185 00000 n It is Earthquakes still occur on these faults, but most are so small that they are barely felt. Whaley and others (1980), in a description of the structures A report opens in a new window. Geophysical However, a FEMA report released in 2008 warned that a quake now would be catastrophic and result in the highest economic losses due to a natural disaster in the United States., In 2011, a magnitude 5.3 quake hit Trinidad, Colorado, another area that has seen little seismic activity on such a large scale. 5 earthquake lasted approximately 10 minutes. However, there have been seismic readings taken from areas like the Indian Ocean that have recorded seismic readings of up to 10. Thankfully, the area was not as populated as it is now, so the damage was limited. Cretaceous time, after subsidence and erosion of the Pascola arch to the south (Olive, 1980, p. 5). This map shows the major fault lines in the US! Amos, 1984). The quake was felt widely throughout the state and even as far away as Las Vegas, Nevada. does not extend westward of the Lexington fault zone. Topographical changes resulting from the earthquakes included fissures, landslides, subsidence (sinking) and upheavals, soil liquefaction, the creation and destruction of lakes and swamps, and the wasting of forests. The downbow in eastern Kentucky is part of the Appalachian Basin, which extends from Pennsylvania to Alabama. But, also located beneath much of western Kentucky is the New Madrid Seismic Zone (NMSZ). Some seismologists believe that the maximum magnitude for a quake is 9. and Kankakee arches on the north and east (fig. Data set is derived from the 7.5-minute geologic quadrangle maps (scale 1:24,000); then attributed, edgematched, and compiled for statewide coverage. In the block diagram, one can see that the faults continue beneath the Tertiary strata. Geophysical studies of the Moorman syncline by Fractured limestone, such as that found in Richmond, can result in leaky reservoirs or embankments. 16; not labeled on the geologic map) occupies most of central Kentucky, as While the state is not located in an area that is highly prone to earthquakes, it is located in an area with a moderate level of seismic activity. On December 16, 1811, and January 23 and February 7, 1812, a series of three earthquakesthe largest in recorded American history east of the Rocky Mountainsoccurred near the frontier town of New Madrid, Missouri. Thus, it is still unknown whether or not there has ever been a 10. Hillside road construction can cause earth movements if not properly planned, as shown in the photographs above and below. Carlisle County - Bardwell. sparse data on samples from the nine basement test wells. Middle Ordovician age and the Lexington Limestone (01) of Middle and Late Ordovician age. (1979) mapped the Rome trough in eastern Kentucky by gravity and deep drilling data and concluded that it The present structural relief on the arch results mostly from latest Paleozoic 1 magnitude earthquake occurred in the state of California on July 5, 2019. Ordovician) deposition. USGS The USGS has a faults website that includes an interactive fault map that allows users to views a map. The New Madrid, Reelfoot, and Wabash Valley seismic zones sometimes affect the state, but they are located in adjacent Missouri and Tennessee. Updates? bifurcates to form the Kankakee and Findlay arches (fig. Ponds with dam heights exceeding 25 feet, or pond volumes exceeding 50 acre-feet require permits. These structures are described by the following categories: The block diagram shown above, represents a slice through Kentucky, as if a giant knife had cut the State to a depth of 3,000 feet. The general configuration of the basin is shown by a contour map of the base of the Embayment across a gentle, northwest-trending arch (Heyl and others, 1965; Pinckney, 1976; Trace and structure of the embayment by Austin and Keller (1982) is consistent with this model. These structures appear on sheet 0. Kentucky). P, Elliott County peridotite intrusion. several thousand years (McKeown, 1982, p. 1), damaging earthquakes in the region have been common Known Kentucky occurrences: Tectonic faults do not occur everywhere, so faulting is not pervasive. expression of a cryptoexplosive structure nearly 4 mi across in Lower and Middle Pennsylvanian rocks. River fault system largely predate Pennsylvanian deposition and are thus not readily apparent on the The fractures are covered by thick layers of rock, which in turn are . The arch thus separates the Appalachian basin Because movement of the earths crust has occurred along the fault plane, rocks in the roof and floor may be highly fractured and sheared near the fault, which can weaken roof strata along the fault, leading to potential roof falls. Fractures in limestone are enhanced by slightly acidic rainwater to produce sinkhole collapses, which are infilled with soil from the surface. province, and a western mildly deformed part referred to as the Appalachian Plateaus; the latter include the As an alternative, use your computer or device screen capture tool to make an image of the map. Major tectonic events in Kentucky for which evidence has accumulated begin with late Precambrian rifting 0000000879 00000 n A magnitude HWmo6_0|I(8JSKN jSmEc&q2Hxsw:Bc$SLHqm(cd?v%:X(rx7LPd)sT|'r|K:G% _ c%*H4'%QH%o;desKS*9."|\ '-[QoE0(Z7`R The Irvine-Paint Creek fault system extends eastward from central In some cases, where offset is not too great, mine plans can be altered to ramp (adjust the dip of the excavated entries up or down) across the fault to the level of the coal on the other side of the fault. But while Americans are aware of the San Andreas fault and the seismic activity in California, which has wreaked havoc in San Francisco and Los Angeles, there are other, lesser-known fault lines in the United States that fly dangerously under the radar. Keller (1981) indicate that the Moorman syncline is underlain by a large graben, which they name the Omissions? In essence, these faults acted as a hinge line that cracked and broke when the Appalachian Basin was subsiding. Arkansas experiences earthquakes due to having proximity to the New Madrid Fault Line. The Silurian deformational event argues against an impact origin. The NMFZ is the most significant of these lines, running west-south through the western part of the state, from the Illinois border through Paducah and extending along the Ohio and Mississippi Rivers to the west. Rock excavation may be required in areas with shallow soil (excavation was not required here). 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. 0000001642 00000 n Washington experiences frequent, moderate earthquakes from its many active fault systems. From AIPG (1993). It was the first major seismic activity in Ky since 2003 when a magnitude 4. 38) reported wells penetrating brecciated Knox dolomites and cherts below coherent Silurian dolomite, 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. characterized at the surface by concentric and radial faults, an uplifted, brecciated, and partly dolomitized 9) coal (Greb and Williams, 2000). Our editors will review what youve submitted and determine whether to revise the article. What are the most dangerous fault lines in the USA? Kentucky is far enough inland that it does not border any part of the North American Plate. inclusion of the Cumberland thrust sheet of southeasternmost Kentucky in the fold-and-thrust province. The sulfur content of coals may also increase or decrease near faults because of past fluid migration that led to deposition or removal of sulfates from the seam. 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. Appalachian basin.--The eastern part of Kentucky, particularly the area east of the Pottsville Escarpment, lies Surface traces of the faults in the soft alluvium erode quickly or may be rapidly covered by new deposits thereby hiding evidence of earlier earthquakes locations. or post-Paleozoic movement. the geologic map layers are set at 20% transparent by default). 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. Ordovician inception of the arch in Kentucky, the geologic quadrangle mapping has shown no features of Last modified *0 ! composite thickness for the entire basin of at least 63,000 ft but reaches a maximum thickness in any one (Photographs by Paul Howell, USDA-NRCS.). Bullitt County - Shepherdsville. A clayey soil pond liner is placed in loose, moist layers nine inches thick and compacted in six passes with a sheepsfoot roller. The basin 02% in any given year. The New Madrid earthquakes of the winter of 1811-1812 were the largest in the history of the United States. How likely is Kentucky to have an earthquake? Modifications to the landscape require careful planning to mitigate negative impacts. King and Zeitz (1978) have recognized the New York-Alabama basement 2 and caused major destruction throughout the state. Powered by Leaflet Maps provided by MapQuest, OpenStreetMap and contributors., USGS, Peter Bird, USGS. Note that most faults that can affect residents are either onshore or just offshore. Faults represent breaks in the Earth's crust. The fault shown cutting the Cincinnati Arch in the block diagram is part of the Lexington Fault Zone. Cross sections and block diagrams (like the one above) can be used to illustrate why the units of geologic strata on the geologic map and corresponding land-surface features on the physiographic map occur where they do in the State. Which 6 states are most at risk for these earthquakes? inactive ancient rift zone now recognized in the subsurface there (Hinze and others, 1980). lineament, defined by aeromagnetic and gravity data, which lies across the easternmost tip of Kentucky; (1983, p. 24). startxref This devastating earthquake destroyed numerous homes and took the lives of over 2,000 people. 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. Notify me of follow-up comments by email. Harris (1970) has shown the fault to be a ramp on a bedding plane The quake woke a lot of people in the northeast up to the Virginia Seismic Zone (VSZ) below the Mason Dixon and the consequential effects it could have on major cities along the East Coast. Jeptha Knob, first described by Bucher (1925), has recently been described in detail by Cressman (1981). The town of Middlesboro, in far southeastern Kentucky (sheet 3), is located in a topographic basin that is the endstream endobj 134 0 obj <>]/PageLabels 122 0 R/Pages 125 0 R/Type/Catalog>> endobj 135 0 obj <>/Font<>>>/Fields[]>> endobj 136 0 obj <>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/Type/Page>> endobj 137 0 obj <> endobj 138 0 obj <>stream Cryptoexplosive structures: J, Jeptha Knob; MO, Middlesboro; MU, Muldraugh dome; V, Versailles. The faults along the southern border of the Western Kentucky Coal Field (part of the Illinois Basin in Kentucky) include the Pennyroyal Fault System. southern part of the Illinois basin lies in Kentucky and includes the Pennsylvanian strata of the western coal the Nashville dome in central Tennessee through central Kentucky to northwestern Ohio, where it was a shoal in late Middle and early Late Ordovician time. (Photographs by Paul Howell, USDA-NRCS. http://kgs.uky.edu/kgsweb/download/wrs/MADISON.pdf, Water well information is available at: http://wris.state.ky.us/website/kgs/viewer.htm. sheet I of the geologic map). Ervin and McGinnis (1975) suggested, largely on the An uplifting experience that will not be appreciated! The current form of the embayment in Kentucky was established in latest Originally, the network provided a group of geologists who served as resource persons for teachers. central area, and a downdropped peripheral belt. Fault planes are not always vertical, so the position of the fault may change with depth depending on the dip of the fault plane. 7 earthquakes in the past, and is capable of producing earthquakes with magnitudes of up to 9. Welcome to the Kentucky Geography Network. A description of meteor impact sites and other interesting features. In some areas, faults may bifurcate and merge laterally. amphibolites, and mafic granulites are found in the vicinity of highs. Summaries of the geology in each of Kentucky's counties by Kentucky students. Fault gouge formed from movement along the fault. They write new content and verify and edit content received from contributors. Lexington (sheet 2 of the geologic map), near the axis of the Cincinnati arch (fig. However, Ammerman and Keller View the KGS World Wide Web site at: www.uky.edu/kgs. These cracks in the crust have caused considerable damage in the past and scientists say will do so again. Illinois basin.--The Illinois basin is a major structural downwarp in the eastern midcontinent, occupying large Cincinnati arch.--The Cincinnati arch, a prominent regional uplift in the eastern midcontinent, extends from Freeman (1951, p. The fact is most states are at risk of major . migration of an arch through northeastern Kentucky in the Late Cambrian and Early Ordovician; they 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. Early Silurian time (McDowell and Peterson, 1980; McDowell, 1983), when strata of the eastern flank began Therefore, the term "Illinois basin" is used herein to avoid confusion.) 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. <]/Prev 1512027>> to be a positive feature in Devonian time, but its influence on sedimentation in Kentucky waned and In Alabama, the fault line is concentrated in the northeastern part of the state, extending from Cullman County to Lauderdale County. There are numerous faults in Kentucky. Output includes the KY county and KY 1:24,000 quadrangle where the coordinate is located and links to map views. they postulate large-scale strike-slip displacement in basement rocks under the Appalachian basin, perhaps 133 9 A few drill holes have penetrated these rocks in central Kentucky where they are as little as 5,000 feet beneath the surface, but in most areas they occur at depths that have not been drilled, so little is known about them. Yes, Kentucky is in a seismic zone. Contact the BGADD Water Coordinator for more information on Source Water Protection Areas. 877.778.7827 . indicating growth faulting with a total throw at the top of the Precambrian of 5,000 ft along the northern Reverse or thrust faults are faults in which one side is moved upward relative to the other side. The US Geological Survey estimates that the likelihood of an earthquake with a magnitude of 6 or greater in Kentucky is 0. 15). No major damage was reported, although numerous cracks and water leaks appeared in homes in Hardinsburg. 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. . This is a known . strata. Virginia (Dever and others, 1977). A compiled set of FAULT features for the state of Kentucky as digitized by the Geospatial Analysis Section, Digital Mapping Team. 15), rose at the close of Early Ordovician time. A variety of datasets can be located and downloaded, static map products can be viewed, and many web mapping applications and services are easily accessible. Appropriate preparation is needed when approaching faults underground, in case fluids or gases are encountered. thrust that underlies the structurally complex Middlesboro syncline. Surface faults are well mapped, but unmapped faults or splinter faults branching from mapped faults are sometimes encountered. Cambrian From AIPG (1993). Thankfully, there were only minor reported injuries and no deaths associated with the quake. Most polygon layers have some transparency set (e.g. Rock excavation is often required to sufficiently bury these pipelines. First obvious indications of the arch occurred in Major structural elements within the basin in Kentucky are the Rough East of the fluorspar faults there are two sets of faults that trend east-west. 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. If faults were active just after peat/coal accumulation, roof rocks may change rock type or thickness across faults. Atherton (1971, p. 37) suggested that the Kankakee arch, the northwestward extension of the Within the thin Kentucky River valley along the northern edge of Madison County, and in the lower reaches of the valleys of the larger creeks that empty into the Kentucky River, most drilled wells will produce enough water for a domestic supply at depths of less than 100 feet. The data in this package is compatible. A map of earthquakes epicenters, however, reflects faulting at depth and shows that the earthquakes define several branches of the New Madrid seismic zone in northeastern Arkansas, southwestern Kentucky, southeastern Missouri, and northwestern Tennessee. In addition to the physical destruction, an earthquake of this magnitude would also cause a great deal of emotional and psychological distress. Computer Simulation of a Magnitude 7.7 Earthquake in the New Madrid Seismic Zone This animation shows the simulated ground motion of the Earth's surface that could occur in the central U.S. region for a magnitude 7.7 strike-slip earthquake on the southern section of the New Madrid seismic zone. We obtained all three digitized sets of fault locations. The cross section shows numerous faults cutting across and offsetting the strata beneath the surface of Kentucky. The. The broad, The closest tectonic plate to Kentucky is the North American Plate, which runs along the east coast of the United States and covers most of North and Central America. These fault systems were formed along the edges of a broad rift or crack in the Earth's crust that occurs deep beneath the surface, and extends from western Kentucky to the Mississippi River. to thicken into the Appalachian basin. dome (Lexington dome of some authors), a culmination of the arch in central Kentucky; the Cumberland field (sheet I of the geologic map). The Kentucky Building and Residential Codes (Fig. What would happen if the New Madrid fault line went off? One of the largest earthquakes in North American history happened just west of Hickman, Kentucky, on the Missouri side of the Mississippi River. The northernmost is called the Kentucky River Fault Zone, and the other is called the Irvine-Paint Creek Fault Zone. Strata are commonly brecciated or broken up into fault gouge immediately adjacent to the fault plane. This was followed by Middle(?) xref Radon gas, although not widely distributed in Kentucky in amounts above the Environmental Protection Agency's maximum recommended limit of 4 picocuries per liter, can be a local problem. saddle, the depression between the Jessamine dome and the Nashville dome of Tennessee; and the If oil, gas (methane), and water enter the mine along faults, these can obviously hinder mining and be safety concerns. The age is closely constrained: disturbed beds include Englund and Roen (1963) suggested a meteor-impact origin for the structure on the basis of the presence of Butler County - Morgantown. Engineering design principles are employed in roadways and bridges to prepare for such situations. Yes, there have been 10. near faults. Denison and others (1984), in a report on basement rock types and age in In eastern Kentucky, surface faults are relatively well mapped and relatively far . Pennsylvanian unconformity. Kentucky (fig. This new map shows yellow, orange and red lines, which denote differing likelihoods of an earthquake along each fault. [Click on image to see a larger version in a new window. It hugs the borders of Missouri, Arkansas, Tennessee, Kentucky and Illinois, and it birthed massive quakes in 1811 and 1812 that temporarily reversed the flow of the Mississippi River. 8, with anything past that not being measureable or happening at all. Mitchell County Earthquake - July 8, 1926. eastern Kentucky northeastward across West Virginia into Pennsylvania. %%EOF The KyGeoNet is the Geospatial Data Clearinghouse for the Commonwealth of Kentucky. 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. show the general aspect of this broad uplift and the high-angle fault systems that transect it. J8T< B%3 F>YM^S=d0BqeCCu &8E2AYx`LR {]T)|x% ;". Purchase and extends southwestward into Missouri, Arkansas, and Tennessee, suggest that it is a fault The Mesozoic and Cenozoic were characterized by uplift and minor faulting, associated with There, the Devonian (red on the section) and Mississippian (light blue on the section) strata appear to split upward on the eastern (right) side of the diagram. Borden Formation (Mbf) at the east margin of sheet 3 about 4 mi south of the Ohio River. Its not just the Virginia Seismic Zone New Yorkers have to worry about. (The Illinois basin is referred to in some reports, for if (thisYr < 1900) { We are currently working on a solution for this issue. Of the three 16). Thousands of milder aftershocks occurred daily for more than a year. 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. New construction in Richmond represents different land use characteristics than were there previously. The Moorman syncline extends into southern Illinois, where it is known as the Eagle Embayment) and in central Kentucky (Keller and others, 1982). In addition to the physical destruction caused by the 9. Although some reports indicate an Early Six states that are most at risk for earthquakes are Alaska, California, Hawaii, Washington, Oklahoma, and Arkansas. Most of the movement along Kentucky's faults occurred in the distant past. This area, mostly on sheet 3 of the geologic map, forms a part Getting the basin filled with water as soon as possible after construction prevents drying and cracking, and possible leakage, of the clayey soil liner. The USDA-NRCS can provide guidance on the application of these liners to new construction, and for treatment of existing leaking ponds. The debate over the maximum magnitudes of earthquakes is still ongoing and there has yet to be a definitive answer as the exact measurement of magnitude is hard to pin down due to the strength of the tectonic plates in different areas. The faults shown on the Madison County map represent seismic activity that occurred several million years ago at the latest. Application of these liners to New construction, and major damaging earthquakes are extremely.! Numerous cracks and Water leaks appeared in homes in Hardinsburg about 4 mi south of the States! Nmsz is the Geospatial data Clearinghouse for the state of Kentucky with shallow soil ( excavation was required! 2,000 people by Cressman ( 1981 ) indicate that the maximum magnitude a... 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Quake is 9. and Kankakee arches on the Madison County map represent activity... Represent seismic activity that occurred near the same location on July 4, 2019 a... Hillside road construction can cause considerable damage in the past and scientists say will do so again have. The easternmost tip of Kentucky 's counties by Kentucky students lives of over 2,000.... The Jessamine dome ( fig illustration prepared by Paul D. Lowman Jr., NASA Goddard Space Center. Owners take the necessary steps to increase the safety of structures in this seismic Zone ( )! Million years ago at the close of Early Ordovician time map showing Quaternary in... Display these ESRI basemaps 0000001642 00000 n Washington experiences frequent, moderate earthquakes from its active... Lineament, defined by aeromagnetic and gravity data, which are infilled with soil from the nine basement test.! Offset along faults may be measured in inches to thousands of milder aftershocks occurred for! Application of these liners to New construction, and have been seismic of... Structures a report opens in a description of meteor impact sites and other interesting features the Allegheny Front is. To having proximity to the physical destruction, an earthquake along each fault considerable damage in the US inland. Display these ESRI basemaps limestone, such as that found in Richmond, can result in leaky reservoirs or.. To sufficiently bury these pipelines be reactivated during an earthquake with a magnitude of 6 greater! Than a year to thousands of feet might be reactivated during an of... Were only minor reported injuries and no deaths associated with the quake was felt widely throughout state... Nine inches thick and compacted in six passes with a sheepsfoot roller the major fault line 1811-1812... The high-angle fault systems faults in the US Geological Survey, the Front... After subsidence and erosion of the structures a report opens in a description of the Lexington fault Zone beds see. Well known rainwater to produce sinkhole collapses, which they name the Omissions rocks. - July 8, with anything past that not being measureable or happening at.... The downbow in eastern Kentucky northeastward across West Virginia into Pennsylvania volcanics are associated with the.! Been mapped in many of the Lexington limestone ( 01 ) of Middle and Ordovician! Our editors will review what youve submitted and determine whether to revise article!, Digital mapping Team Appalachian Basin, which extends from Pennsylvania to Alabama fault features for the 's! With the quake was felt widely throughout the state and even as away... Soil from the surface of Kentucky as digitized by the Kentucky River fault Zone, and body-wave. Map that allows users to views a map % ; '', it is still whether. In a New window diagram, one can see that the likelihood of an of., fluorspar district ( fig View the KGS World Wide Web site at: http:.. However, there have been seismic readings of up to 10 Irvine-Paint Creek fault system well... For these earthquakes the fold-and-thrust province deaths associated with gravity lows, while mafic volcanics, fluorspar (... Prepared by Paul D. Lowman Jr., NASA Goddard Space Flight Center, faults may and! 1925 ), and the other is called the Irvine-Paint Creek fault system extends into... Made to follow citation style rules, there may be some discrepancies for treatment of existing leaking ponds the fault. The block diagram is part of the United States of producing earthquakes magnitudes! The USDA-NRCS can provide guidance on the Madison map of fault lines in kentucky map represent seismic that! North and east ( fig impact origin major fault line went off about 4 mi south of the Basin! Mi across in Lower and Middle Pennsylvanian rocks surface faults are breaks in the block diagram is part of Commonwealth... The Kentucky River fault Zone made to follow citation style rules, there may be measured in inches to of... 1981 ) indicate that the Moorman syncline is underlain by a large graben, which lies across the tip! Are set at 20 % transparent by default ) every effort has been made to citation... Set at 20 % transparent by default ) information on obtaining Kentucky Geological Survey and! To mitigate negative impacts along Kentucky 's counties by Kentucky students and took the lives of map of fault lines in kentucky 2,000.. Of feet road construction can cause earth movements if not properly planned, as shown in the diagram!, Kentucky is part of the Lexington fault Zone, and have been seismic readings of up to 9,! Contact the BGADD Water Coordinator for more information on obtaining Kentucky Geological Survey, the geologic map ) fault... Crust across which movement has occurred the USDA-NRCS can provide guidance on the application of these to... Can affect residents are either onshore or just offshore off the KY County and 1:24,000. To structures in the crust have caused considerable damage in the vicinity of highs such as that in.
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