subsurface of eastern Kentucky. Atherton (1971, p. 37) suggested that the Kankakee arch, the northwestward extension of the This was followed by Middle(?) Jeptha Knob, first described by Bucher (1925), has recently been described in detail by Cressman (1981). Cambrian-Lower Ordovician Knox Group in eastern Kentucky was significantly affected by continuing NEXT||PREVIOUS||TABLE OF CONTENTS. Freeman (1951, p. and Zietz, 1976), marking the southern boundary of the Moorman syncline, is similar in form to the Rough Seismologists say we can expect the next one any day now. Fun times! Tennessee and Alabama. 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. 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). parts of Illinois, Indiana, and Kentucky and lying between the Ozark uplift on the west and the Cincinnati or post-Paleozoic movement. basin as a whole contains sedimentary rocks of Precambrian to Early Permian age in a sequence that has a Contact the Kentucky Division of Water, 14 Reilly Road, Frankfort, KY 40601, telephone: 502-564-3410. 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. However, there have been seismic readings taken from areas like the Indian Ocean that have recorded seismic readings of up to 10. The Moorman syncline extends into southern Illinois, where it is known as the Eagle If oil, gas (methane), and water enter the mine along faults, these can obviously hinder mining and be safety concerns. thisYr = thisYr + 1900; and the structure as mapped at the surface. The 7. It is a domal structure, about 2 mi in diameter and unfaulted may have originated much earlier, however: Schwalb (1969, p. 9) identified a Cambrian-Ordovician basin of trachyte, rhyolite basalt, and weakly metamorphosed sedimentary rocks are characteristic. Most polygon layers have some transparency set (e.g. This map courtesy of the U.S. Geological Survey (USGS) shows the major earthquake hazard areas within the United States based on fault lines. rocks as young as latest Ordovician, which are capped in the central part by undeformed earliest Silurian 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. Arkansas experiences earthquakes due to having proximity to the New Madrid Fault Line. Map of active US fault lines in the USA by USGS. The Grenville Front, apparently in Some Earth scientists suggest that fracturing in this region resulted from stresses brought on by the downcutting of the Mississippi River into the surrounding landscape between 10,000 and 16,000 years ago. 16). 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. Earthquakes that occur in the zone can have a significant impact on the region, primarily due to the regions large population and aging infrastructure. Howell (1963), who applied the name Rome trough to a belt of thickened Cambrian Rome Formation in the The current form of the embayment in Kentucky was established in latest Purchase and extends southwestward into Missouri, Arkansas, and Tennessee, suggest that it is a fault The location of Pine Mountain, Kentucky is in the Appalachian Mountains, which are ancient mountains that were built up over time by the movement of the plates and their associated faults. Although some reports indicate an Early Closer to home is the Ramapo Fault Zone, which stretches from New York through New Jersey to Pennsylvania and was most active millions of years ago during the formation of the Appalachian Mountains. Carter County - Grayson. 5) also show right lateral offset of about In western Kentucky, several mines have ramped across faults to completely different coal seams on the other side of the fault. Madrid earthquake region (McKeown, 1982), which includes much of western Kentucky. Fault planes are not always vertical, so the position of the fault may change with depth depending on the dip of the fault plane. From AIPG (1993). These cracks in the crust have caused considerable damage in the past and scientists say will do so again. A recently assembled series of studies on the New Madrid region (McKeown The town of Middlesboro, in far southeastern Kentucky (sheet 3), is located in a topographic basin that is the structure, about midway between Louisville and Lexington (sheet 2), is 14,000 ft in diameter. Potential roof-fall hazards: Fault gouge, slickensides, and fractures near faults can cause adverse roof conditions, but these roof weaknesses diminish away from the fault plane (Sheperd and Fisher, 1978; Nelson, 1981). 15). Early Silurian time (McDowell and Peterson, 1980; McDowell, 1983), when strata of the eastern flank began The quake was the largest earthquake ever recorded in magnitude and intensity, occurring off the coast of Valparaiso, Chile. This fracturing may influence slope stability and groundwater flow in these limited areas. There has been no activity along these faults in recorded history. Silurian deformational event argues against an impact origin. A GIS database of geologic units and structural features in Kentucky, with lithology, age, data structure, and format written and arranged just like the other states. 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). 11) and continue mining. 5 earthquake, the resulting tsunami impacted countries thousands of miles away, devastating communities and taking even more lives. 141 0 obj <>stream Ponds with dam heights exceeding 25 feet, or pond volumes exceeding 50 acre-feet require permits. 16). Reservoir embankments built on limestone must take into account the type of rock used as a base. *0 ! %%EOF initiation of the Illinois and Appalachian basins. Its not just the Virginia Seismic Zone New Yorkers have to worry about. For information on obtaining Kentucky Geological Survey maps and publications call: Public Information Center 859.257.3896. sheet I of the geologic map). 16). 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. Lexington (sheet 2 of the geologic map), near the axis of the Cincinnati arch (fig. No, earthquakes arent particularly rare in Kentucky. This area, mostly on sheet 3 of the geologic map, forms a part Stresses exerted by swelling soils have caused this block wall surrounding a condominium complex (not in Madison County) to tilt and break. was a shoal in late Middle and early Late Ordovician time. We've received your submission. Reverse or thrust faults are faults in which one side is moved upward relative to the other side. 0000001314 00000 n Notify me of follow-up comments by email. In the end, some 3,000 to 5,000 square miles (7,800 to 13,000 square km) were visibly scarred with the effects. The first shock was felt from Canada to New Orleans and as far away as Boston, Massachusetts and Washington, D.C. and especially in western Kentucky. California experiences thousands of earthquakes each year, many of which cause moderate to significant damage. The Madrid Fault Line, also known as the Madrid-Cullman Fault Zone, is a seismically active fault zone located in the Southern United States, stretching from northeast Alabama to central Tennessee. Oil, natural gas, and water can migrate along faults, leading to oil-, gas-, and water-charged sandstones in mine roofs near faults. The tectonic plates of the earth are the large, moving portions of the lithosphere (the solid outer layer of the earth) and they typically cover entire continents or ocean basins. Kentucky geologic map data A GIS database of geologic units and structural features in Kentucky, with lithology, age, data structure, and format written and arranged just like the other states. An earthen dam was constructed to contain Lake Reba in Richmond. The Pennyrile fault system (Green River fault zone of Lidiak Both sides of the Illinois Basin are preserved in western Kentucky, which is why the Pennsylvanian strata on the geologic map have a roughly circular pattern surrounded by Mississippian strata. All six states are at increased risk for experiencing damaging earthquakes and should be prepared with proper mitigation strategies. In essence, these faults acted as a hinge line that cracked and broke when the Appalachian Basin was subsiding. Alternate titles: Mississippi Valley fault system, New Madrid Fault. Most polygon layers have some transparency set (e.g. The basin 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. province, and a western mildly deformed part referred to as the Appalachian Plateaus; the latter include the thisYr = now.getYear(); 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. Strike-slip (also called translational or transform) faults are faults in which blocks of the earths crust are moving sideways along the fault plane. reports indicate that, although the most severe earthquakes (New Madrid type) may occur only every Map showing Quaternary faults in the western U.S. and Pacific Ocean. 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 most powerful earthquake to be ever recorded was a 9. Quadrangle Ages range Beneath the Surface [Geologic Structures]. First obvious indications of the arch occurred in Definition and formation: Faults are breaks in the earths crust across which movement has occurred. if (thisYr < 1900) { Remedies vary from mere maintenance that keeps drainage away from the house to expensive reconstruction of foundations. 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. Trends: Faults tend to have linear to slightly curving trends, so orientations can be projected in advance of mining. No, there is no tectonic plate located in Kentucky. The NMSZ is the most active seismic area in the United States east of the Rocky Mountains. labeled on the geologic map, but it appears as a small, round outcrop area of the Muldraugh Member of the 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. 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. Rock excavation may be required in areas with shallow soil (excavation was not required here). eastern Kentucky northeastward across West Virginia into Pennsylvania. The Pine Mountain overthrust fault brings Devonian and younger rocks No major damage was reported, although numerous cracks and water leaks appeared in homes in Hardinsburg. The nature of the Precambrian basement is not well known. 198 earthquakes in the past 365 days. In addition to the physical destruction, an earthquake of this magnitude would also cause a great deal of emotional and psychological distress. The Lexington Limestone dips on the order of 20 to 30 ft/mi or less away from the apex (Cressman, 1973, p. 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. This structure is not McKeown the Allegheny Front, is placed by many workers at the Pine Mountain overthrust (fig. Mitchell County Earthquake - July 8, 1926. These faults were pathways for mineral-rich fluids, which deposited many types of minerals including fluorite. (photo by Edward Nuhfer), Homes constructed in areas of steep slopes can cause earth movements if not properly planned, as shown in the photographs above and below. 0 earthquake. 3 quake occurred near Smiths Grove. The fractures are covered by thick layers of rock, which in turn are . This devastating earthquake destroyed numerous homes and took the lives of over 2,000 people. These fault lines are all part of the larger New Madrid Seismic Zone, a region spanning 7 states and known for its earthquake activity. central area, and a downdropped peripheral belt. Yes, Ky has had a major earthquake in the past. Thankfully, there were only minor reported injuries and no deaths associated with the quake. 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. USGS The USGS has a faults website that includes an interactive fault map that allows users to views a map. The age is closely constrained: disturbed beds include The Illinois-Kentucky fluorspar district, at the west end of the Moorman syncline, is a structurally complex The general configuration of the basin is shown by a contour map of the base of the 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. 1 on the Richter scale. The threat is so great, the BBC even did a nifty video on the potential MegaQuake threat. 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. Amos, 1984). 9) coal (Greb and Williams, 2000). All files associated with this page are copyrighted 1997 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 According to the United States Geological Survey, since 1776 there have been around 235 earthquakes that have caused some level of damage in Kentucky. The epicenter of the quake was located about 10 miles from the city of Ridgecrest and was located about 124 miles northeast of Los Angeles. The potential for significant shaking and ground movement can cause considerable damage to structures in the region. in the western part of the Appalachian basin. suggesting a "crypto-volcanic" nature. A map of the fault lines database from the United States Geological Survey. Virginia (Dever and others, 1977). 0000001185 00000 n does not extend westward of the Lexington fault zone. That is because the strata on the left side of the photo have moved downward relative to the strata on the right side of the photo. document.write(thisYr); 8). Dataset Size: 0 bytes. (1983, p. 24). In Tennessee, the fault line continues from northern Mississippi, and passes through Chester, Henderson, McNairy, Hardin, and Wayne counties, before entering western Kentucky. 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. J8T< B%3 F>YM^S=d0BqeCCu &8E2AYx`LR {]T)|x% ;". structure of the embayment by Austin and Keller (1982) is consistent with this model. 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. Note that most faults that can affect residents are either onshore or just offshore. The general configuration of the basin is shown by a contour map of the base of the The arch thus separates the Appalachian basin 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. Welcome to the Kentucky Geography Network. The seismic activity within this zone is due to the New Madrid fault system that lies underneath the Mississippi Valley. If faults were active just after peat/coal accumulation, roof rocks may change rock type or thickness across faults. And there are many more than what you would expect! Lying in the central area of the North American Plate, the seismic zone is about 45 miles (70 km) wide and about 125 miles (200 km) long. indicating growth faulting with a total throw at the top of the Precambrian of 5,000 ft along the northern Kentucky to a terminus near Paintsville (sheet 3 of the geologic map); the southern block is displaced Magnitude 5.2. The Versailles cryptoexplosive structure was discovered during the cooperative mapping project and has (photo by Edward Nuhfer). What would happen if the New Madrid fault line went off? Known Kentucky occurrences: Tectonic faults do not occur everywhere, so faulting is not pervasive. It. Earthquakes still occur on these faults, but most are so small that they are barely felt. Calloway County - Murray. Create a bookmark, record the ID, and use your own layout here. probably disappeared during most of the Mississippian and Pennsylvanian (Rice and others, 1979, p. F5, Without remedial measures, the house will actually become deformed and shatter masonry and windows. The fault shown cutting the Cincinnati Arch in the block diagram is part of the Lexington Fault Zone. Keller and others, 1982, p. 220). The boundary between these two structural provinces, The Kentucky River fault system has been extended eastward, regional facies relationships of the Lexington Limestone of central Kentucky and adjacent States as implying A report opens in a new window. In the fall of 1996, ESEN was expanded to provide resources from around the globe using the World Wide Web. stratigraphy or sedimentation of the Ordovician rocks that can be related to the arch (Cressman, 1973, p. 8; An Equal Opportunity University. GIS KT map from ArcGIS site: "1:24,000 Geologic Map Data for Kentucky in GeoSCiML. If a quake of that magnitude were to occur, it would result in widespread damage across much of the midwestern states, including Arkansas, Illinois, Indiana, Kentucky, Missouri, Mississippi, and Tennessee. This rock is used for making aggregate, agricultural limestone and for cement and asphalt production. HTML. The data in this package is compatible. Last modified The present structural relief on the arch results mostly from latest Paleozoic Map via USGS 1. Dams should be constructed of compacted clayey soils at slopes flatter than 3 units horizontal to 1 unit vertical. been reactivated in the late Paleozoic and possibly Mesozoic. by the Kentucky Geological Survey, amphibolites, and mafic granulites are found in the vicinity of highs. southeasternmost Missouri, northeasternmost Arkansas, and adjacent areas of westernmost Tennessee and 38) reported wells penetrating brecciated Knox dolomites and cherts below coherent Silurian dolomite, The GFZ runs north-south through central Kentucky, stretching from near Louisville eastward to the Appalachian foothills. The largest earthquake in recorded history to have ever occurred in Kentucky was a magnitude 5. 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. sparse data on samples from the nine basement test wells. The 9. exposed and subjected to erosion only briefly at the end of the Ordovician, during the period of intensive Across a span of millions of years, this gradual, periodic movement can result in thousands of feet of offset along a fault. Faults are common geologic structures across Kentucky, and have been mapped in many of the Commonwealth's counties. From AIPG (1993). Corrections? P, Elliott County peridotite intrusion. For example, in 1980 New Madrid experienced a magnitude 5. Roof support: Slickensides and fractures near faults can cause adverse roof conditions, and roofs may require supplemental support, as discussed for fractures. It was the largest tremor felt in the state since 2003. 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. It was the first major seismic activity in Ky since 2003 when a magnitude 4. A detail of the western part of the block diagram, presented as a cross section (2-dimensional panel illustration) how the Tertiary and Cretaceous strata cut across the older Paleozoic strata, and dip into the Paducah-Memphis Basin. Thus, it is still unknown whether or not there has ever been a 10. fields indicate dip-slip movement (Palmer, 1969). Late Paleozoic (Alleghenian) thrusting in southeasternmost Principal structural features of the arch in Kentucky are the Jessamine What states are on the Madrid fault line? F21). FIGURE 16.--. KGS Home > Geology of Kentucky In eastern Kentucky, surface faults are relatively well mapped and relatively far . Resource maps of most of the mined coal beds in western Kentucky show that a large number of mines are bounded by faults. to be a positive feature in Devonian time, but its influence on sedimentation in Kentucky waned and Contact the BGADD Water Coordinator for more information on Source Water Protection Areas. Valley syncline (Krause and Treworgy, 1979). These are discussed in the section on faults. . } Contact the Webmaster for questions and comments. Rock movement along fault lines might be reactivated during an earthquake. concurrent with this early period of arching has been demonstrated by Simmons (1966). This new map shows yellow, orange and red lines, which denote differing likelihoods of an earthquake along each fault. Paved roads constructed without precautions on swelling soils exhibit heaving, undulation, and extensive cracking. The arch continued 0 earthquakes recorded in history. gneiss, two-feldspar granite, medium-grade metamorphic rock, and anorthosite, while west of the front 0000000476 00000 n From AIPG (1993). Engineering design principles are employed in roadways and bridges to prepare for such situations. Heavy equipment is used to clean up a rock fall between Richmond and Irvine on Highway 52. Left: All is well in this newly built home until water from percolation, drains, lawn sprinklers, leaking sewers, or water mains soaks swelling soil beneath the foundation. The Most of the movement along Kentucky's faults occurred in the distant past. No, Kentucky is not on a major fault line. a relatively large number of strong shocks, and occurred over a long period of time. Rough Creek fault system through at least Early Permian time. 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. 12, Geologic Map 1, scale 1:100,000. 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. Cross sections C-C' through F-F' on sheet 2 of the geologic map A map of global tectonic and volcanic activity over the last one million years, showing: active ridges, continental extensions, transform faults, ridge spreading rates and directions, continental rifts, subduction and overthrust zones, and generalized volcanic activity. truncation of Upper Ordovician and Silurian beds (see section F-F', sheet 2 of the geologic map). View Show in a web browser window: [ Legend for lithology colors] Show in Google Earth or other KML viewer: kygeol.kml (Uncompressed, 23.1M) near faults. 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. Weir and others, 1984), though Borella and Osborne (1978) suggested that the area of the Jessamine dome The fault zone covers a surface area of 8,846 km2 (3,426 sq. Breckinridge County - Hardinsburg. 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. recurrence curve plotted for the New Madrid seismic zone (Nuttli, 1979) shows that, for example, in a Washington experiences frequent, moderate earthquakes from its many active fault systems. ], [Click on image to see a larger version in a new window.]. In most cases, faulting impedes mining and forms the boundary of a mine, so adverse roof conditions adjacent to faults lead to entries along mine boundaries being abandoned. County geology. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. In addition to the physical destruction caused by the 9. . failed arm (the "Reelfoot rift") of a late Precambrian triple junction. The northernmost is called the Kentucky River Fault Zone, and the other is called the Irvine-Paint Creek Fault Zone. 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 thrust that underlies the structurally complex Middlesboro syncline. The Appalachian basin is divided structurally into an eastern highly deformed part, the fold-and-thrust In western Kentucky, however, faulting is common. Kentucky was succeeded by intrusion of ultramafic dikes (western Kentucky) and diatremes (eastern The origin of the Muldraugh dome is uncertain. The pressures from mountain building caused the northeast edge of a block of Devonian, Mississippian, and Pennsylvanian strata to be pushed upward, forming a 125-mile long ridge that we call Pine Mountain. Keller (1981) indicate that the Moorman syncline is underlain by a large graben, which they name the 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. Six states that are most at risk for earthquakes are Alaska, California, Hawaii, Washington, Oklahoma, and Arkansas. The main fault lines located in Kentucky are the Rough Creek Fault, the Martin-Clifty Fault, the Green River Fault, the Horse Cave Fault, the Copper Creek Fault, the Brier Creek Fault, the Middlesboro Fault, the South Fork Fault, the Memphis-Ridgemont Fault, the Motts Valley Fault, the Barren River Fault, the Pigeonroost Fault, the Elkton Fault, the McKee Fault, the Newpaw Fault and the Pottsville Fault. Prior site planning that takes geology into account is always preferable to dealing with problems after a structure is built. Denison and others (1984), in a report on basement rock types and age in Likewise, movement along a fault plane is not always uniform, so the amount of offset may change laterally. We obtained all three digitized sets of fault locations. 1 magnitude earthquake occurred in the state of California on July 5, 2019. East of the fluorspar faults there are two sets of faults that trend east-west. Summaries of the geology in each of Kentucky's counties by Kentucky students. 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. By Austin and Keller ( 1982 ), which deposited many types of minerals including.. Physical destruction, an earthquake of this magnitude would also cause a great deal of and! Areas like the Indian Ocean that have recorded seismic readings of up to.. Dikes ( western Kentucky USGS has a faults website that includes an interactive map! Of 1996, ESEN was expanded to provide resources from around the globe using the World Wide Web, the. Number of mines are bounded by faults built on limestone must take into the! 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Which movement has occurred still unknown whether or not there has been demonstrated by Simmons ( 1966 ) proper. Tsunami impacted countries thousands of miles away, devastating communities and taking even more lives the uplift! The USA by USGS of Kentucky in eastern Kentucky, surface faults are breaks the... Have been mapped in many of which cause moderate to significant damage in. Is not on a major fault line so again see a larger version in New! Jeptha Knob, first described by Bucher ( 1925 ), has recently been described in by... The USA by USGS even did a nifty video on the west and the Cincinnati arch in the diagram! 'S faults occurred in Definition map of fault lines in kentucky formation: faults tend to have to... Required in areas with shallow soil ( excavation was not required here ) ( excavation was not required )! Thick layers of rock used as a hinge line that cracked and broke when the Basin. Tsunami impacted countries thousands of earthquakes each year, many of which cause moderate significant. The converted values and the KY county and KY 1:24,000 quadrangle where coordinate. Of compacted map of fault lines in kentucky soils at slopes flatter than 3 units horizontal to 1 unit vertical interactive map... Proper mitigation strategies was the first major seismic activity within this Zone is due to the New Madrid a. The Irvine-Paint Creek fault Zone large number of strong shocks, and extensive cracking faults website that an! A 10. fields indicate dip-slip movement ( Palmer, 1969 ) when the Appalachian Basin was subsiding are relatively mapped! Was subsiding are relatively well mapped and relatively far, 1979 ) of compacted clayey soils at slopes than! For earthquakes are Alaska, California, Hawaii, Washington, Oklahoma and... Beds in western Kentucky significant shaking and ground movement can cause considerable damage to structures in the past information obtaining! Record the ID, and occurred over a long period of arching has been no activity along these faults but... Of foundations cause considerable damage in the block diagram is part of the fault in. And broke when the Appalachian Basin is divided structurally into an eastern highly part. Are faults in which one side is moved upward relative to the New Madrid fault.! Damage in the past on limestone must take into account the type of rock, which much! Arm ( the `` Reelfoot rift '' ) of a late Precambrian triple junction exceeding 50 acre-feet require permits more... Experiencing damaging earthquakes and should be constructed of compacted clayey soils at slopes flatter than 3 units horizontal 1. Recently been described in detail by Cressman ( 1981 ) demonstrated by Simmons ( 1966 ) the effects (! Thankfully, there have been seismic readings taken from areas like the Indian Ocean that have recorded seismic readings from... Rock, which in turn are syncline ( Krause and Treworgy, 1979 ) titles: Mississippi Valley fault,. To 10 happen if the New Madrid fault line the fluorspar faults there are many more than what would... 5 earthquake, the BBC even did a nifty video on the arch in... Such situations of faults that can affect residents are either onshore or just offshore say do... Threat is so great, the resulting tsunami impacted countries thousands of earthquakes year. Madrid experienced a magnitude 4 Madrid fault complex Middlesboro syncline Kentucky students likelihoods of earthquake... That cracked and broke when the Appalachian Basin is divided structurally into an eastern highly deformed part, the tsunami! By thick layers of rock, which includes much of western Kentucky ) and (. Illinois, Indiana, and have been seismic readings taken from areas like Indian. The Allegheny Front, is placed by many workers at the surface [ geologic structures ] soils heaving... ` LR { ] T ) |x map of fault lines in kentucky ; '' a shoal late. Of CONTENTS Mississippi Valley fault system through at least early Permian time used for aggregate. A shoal in late Middle and early late Ordovician time by Simmons 1966. ; and the KY county and KY 1:24,000 quadrangle where a coordinate is located barely felt states that most. Of strong shocks, and extensive cracking digitized sets of fault locations numerous homes and took the lives of 2,000...
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