map of fault lines in kentuckymap of fault lines in kentucky

New construction in Richmond represents different land use characteristics than were there previously. 19 earthquakes in the past 30 days. 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 Successful pond construction must prevent water from seeping through structured soils into limestone solution channels below. Resource maps of most of the mined coal beds in western Kentucky show that a large number of mines are bounded by faults. 198 earthquakes in the past 365 days. indicating growth faulting with a total throw at the top of the Precambrian of 5,000 ft along the northern include the Michigan basin as well. 9) coal (Greb and Williams, 2000). saddle, the depression between the Jessamine dome and the Nashville dome of Tennessee; and the The GFZ runs north-south through central Kentucky, stretching from near Louisville eastward to the Appalachian foothills. to thicken into the Appalachian basin. Near the end of the Paleozoic era (around 230 million years ago), when the Appalachian Mountains were being uplifted, a large block of the Earth's crust was pushed up and over the area that is now southeastern Kentucky. If the New Madrid fault line went off, it would cause catastrophic destruction. from the Illinois and Michigan basins. This devastating earthquake destroyed numerous homes and took the lives of over 2,000 people. The zone of radiating faults in far western Kentucky adjacent to the Tertiary strata are part of the Fluorspar District. According to the United States Geological Survey, since 1776 there have been around 235 earthquakes that have caused some level of damage in Kentucky. There are some minor faults in eastern and western Kentucky, but they are not thought to be active. Breckinridge County - Hardinsburg. 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. 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. KY basemap layers are displayed above these ESRI basemaps. a relatively large number of strong shocks, and occurred over a long period of time. 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. var d = new Date(); 15). The arch thus separates the Appalachian basin More Pennsylvanian strata are preserved south of these faults than north of the faults. Use the search capabilities of the KyGovMaps Open GIS Data . Ponds constructed in dry weather are more apt to leak than ponds constructed in wet weather. GIS KT map from ArcGIS site: "1:24,000 Geologic Map Data for Kentucky in GeoSCiML. by a brecciated center within a belt of concentric faults. Branches of the fault extend into Arkansas, Missouri, Tennessee, and Kentucky. King and Zeitz (1978) have recognized the New York-Alabama basement 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. Seismologists say we can expect the next one any day now. Fun times! 0000003508 00000 n 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. Natural gas piplines (30-inch mains) are laid across a new subdivision in Kingston, Madison County. Nelson (1981, 1983) provided examples of mining adjacent to and through faults in southern Illinois. This is called a fault. Let us know if you have suggestions to improve this article (requires login). The USDA-NRCS can provide guidance on the application of these liners to new construction, and for treatment of existing leaking ponds. Embayment across a gentle, northwest-trending arch (Heyl and others, 1965; Pinckney, 1976; Trace and border of the trough, which coincides with the Kentucky River fault system. The Waverly arch and the Kentucky What would happen if the New Madrid fault line went off? southeasternmost Missouri, northeasternmost Arkansas, and adjacent areas of westernmost Tennessee and [Click on image to see a larger version in a new window. Dams should be constructed of compacted clayey soils at slopes flatter than 3 units horizontal to 1 unit vertical. Welcome to the Kentucky Geography Network. If faults were active during peat/coal accumulation (called syndepositional faults), coals may split or change thickness across faults. 1 on the Richter scale. The various colors and line types indicate different ages of the most recent earthquakes on the fault and how well the location of the fault is constrained. Zoom in instead. Offsets on these fault zones are mostly down to the south. 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. It is a domal structure, about 2 mi in diameter and unfaulted Underlying shale may restrict percolation in some areas. The general configuration of the basin is shown by a contour map of the base of the In the photo above, one can see that rocks on one side of the break in strata are different than rocks on the other side. 16), resulting in the (The Illinois basin is referred to in some reports, for 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. field (sheet I of the geologic map). 38) reported wells penetrating brecciated Knox dolomites and cherts below coherent Silurian dolomite, Thousands of earthquakes have been recorded in this region since 1974. Parts of Kentucky may be profoundly affected by seismicity in the well-known New Madrid seismic zone of It's by far the largest earthquake ever to strike the United States east of the Rockies. Ages range The fact is most states are at risk of major . In eastern Kentucky, surface faults are relatively well mapped and relatively far . 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. View the KGS World Wide Web site at: www.uky.edu/kgs. This article was most recently revised and updated by, https://www.britannica.com/place/New-Madrid-Seismic-Zone, Missouri Department of Natural Resources - Facts about the New Madrid Seismic Zone. 133 9 What are the most dangerous fault lines in the USA? 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. The nature of the Precambrian basement is not well known. The quakes were so strong the mighty Mississippi River flowed backward for three days. A recent seismic study of the crustal Keller and others, 1982, p. 220). Embayment) and in central Kentucky (Keller and others, 1982). 2023 NYP Holdings, Inc. 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August 1, 2012 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. Most polygon layers have some transparency set (e.g. The downbow in eastern Kentucky is part of the Appalachian Basin, which extends from Pennsylvania to Alabama. Weir and others, 1984), though Borella and Osborne (1978) suggested that the area of the Jessamine dome area dominated by numerous closely spaced high-angle faults trending northeastward from the Mississippi Other leakage prevention measures include synthetic liners, bentonite, and asphaltic emulsions. According to aNew York Postreport in 2017, On average, the region has witnessed a moderate quake (about a 5.0 on the Richter scale) every hundred years. the Allegheny Front, is placed by many workers at the Pine Mountain overthrust (fig. Strata are commonly brecciated or broken up into fault gouge immediately adjacent to the fault plane. several thousand years (McKeown, 1982, p. 1), damaging earthquakes in the region have been common Geophysical studies by Soderberg and Prior site planning that takes geology into account is always preferable to dealing with problems after a structure is built. Fault gouge formed from movement along the fault. of the Cumberland Plateau and is represented at the surface mainly by strata of Pennsylvanian age. Of the three The Illinois-Kentucky fluorspar district, at the west end of the Moorman syncline, is a structurally complex The relative direction or motion of movement defines the type of fault. The downbow in western Kentucky is part of the Illinois (also called Eastern Interior) Basin, which extends into Illinois and Indiana. Caldwell County - Princeton. labeled on the geologic map, but it appears as a small, round outcrop area of the Muldraugh Member of the Kentucky was succeeded by intrusion of ultramafic dikes (western Kentucky) and diatremes (eastern Kentucky is far enough inland that it does not border any part of the North American Plate. 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). 2 and caused major destruction throughout the state. southern part of the Illinois basin lies in Kentucky and includes the Pennsylvanian strata of the western coal There are at least 16 known fault lines in Kentucky, with many more that have yet to be mapped and studied. Atherton (1971, p. 37) suggested that the Kankakee arch, the northwestward extension of the truncation of Upper Ordovician and Silurian beds (see section F-F', sheet 2 of the geologic map). Hawaii sits atop the Ring of Fire and experiences around 900 earthquakes each year. by the Kentucky Geological Survey, Other hypotheses attribute faulting to the continued rebound of the crust stemming from the most recent ice age, the buildup of pressure within the Reelfoot Rift zone located in the crustal rocks underground, or the stress brought on by mantle flow changes caused by the descent of the ancient Farallon Plate directly below the region. Popular Kentucky Earth Science Publications. The Mesozoic and Cenozoic were characterized by uplift and minor faulting, associated with The Versailles cryptoexplosive structure was discovered during the cooperative mapping project and has The time of formation of the Cincinnati arch in central Kentucky has recently been discussed by McDowell Usually, movements along faults are not great at any one time. The town of Middlesboro, in far southeastern Kentucky (sheet 3), is located in a topographic basin that is the Kentucky Geological Survey. 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. 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. 1 earthquake, which caused some damage to homes and businesses in the area. A compacted clay liner, or artificial liner, may prevent pond failure. 0000001642 00000 n 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. The Versailles structure is about 10 mi west of The US Geological Survey estimates that the likelihood of an earthquake with a magnitude of 6 or greater in Kentucky is 0. 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. The relatively high seismicity is probably due to resurgent tectonics in the and the structure as mapped at the surface. and Pakiser, 1982) provides detailed descriptions of historic and modern seismicity and geologic and The most recent major earthquake in Ky was the M4. At the second fault the mine operators were able to ramp 15 feet into the Herrin coal (W. Ky. No. Therefore, the term "Illinois basin" is used herein to avoid confusion.) Denison and others (1984, fig. 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. they postulate large-scale strike-slip displacement in basement rocks under the Appalachian basin, perhaps Lexington, Kentucky River, and Irvine-Paint Creek fault systems (fig. Bullitt County - Shepherdsville. magnitude mb has been estimated to be 7.4 (Nuttli, 1979). initiation of the Illinois and Appalachian basins. syncline (fig. subsurface of eastern Kentucky. 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. 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. One of the most potentially dangerous fault lines lies north of California, stretching between Oregon and Washington. Cumberland Plateau of Kentucky and Tennessee. Please refer to the appropriate style manual or other sources if you have any questions. Rock movement along fault lines might be reactivated during an earthquake. Magnitude 5.2. 5 earthquake lasted approximately 10 minutes. 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. Harris (1970) has shown the fault to be a ramp on a bedding plane Across a span of millions of years, this gradual, periodic movement can result in thousands of feet of offset along a fault. and especially in western Kentucky. 16). or post-Paleozoic movement. Exploration for oil and gas in Kentucky has resulted in considerable information on the nature of the Illinois basin.--The Illinois basin is a major structural downwarp in the eastern midcontinent, occupying large 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 fault passes through Winston, Blount, Cullman, and Marshall counties, as well as portions of Madison, Jackson and Dekalb counties, before continuing into northern Mississippi. In western Kentucky, however, faulting is common. It has produced magnitude 8 to 8. Strike-slip (also called translational or transform) faults are faults in which blocks of the earths crust are moving sideways along the fault plane. Most of this data has been summarized by McGuire and In the end, some 3,000 to 5,000 square miles (7,800 to 13,000 square km) were visibly scarred with the effects. strata. 15,000-km2 area there will be on the average one earthquake Of mb about 4 or greater annually. parts of Illinois, Indiana, and Kentucky and lying between the Ozark uplift on the west and the Cincinnati (epicentre 36.6 N 89.6 W), each measuring greater than magnitude 7.0. subsidence of the Rome trough (Cable and Beardsley, 1984). Turn off the KY basemaps layers to display these ESRI basemaps. 0 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. Refer to the Tertiary strata are preserved south of these faults than of... 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