map of fault lines in kentucky

Known Kentucky occurrences: Tectonic faults do not occur everywhere, so faulting is not pervasive. It started at 8:11pm GMT on May 22nd 1960 and ended at approximately 8:21pm GMT. geologic map; evidence of these features has been reported from Mississippian and older rocks in View the KGS World Wide Web site at: www.uky.edu/kgs. Fault gouge is commonly mineralized. USGS Interactive Fault Maps. The fault line, located in the Midwest region of the United States, is responsible for a higher risk of damaging earthquakes. Campbell County - Alexandria. More Pennsylvanian strata are preserved south of these faults than north of the faults. Cable and Beardsley (1984) have traced the westward In Mississippi, the fault line passes through the following counties: Tishomingo, Itawamba, Pontotoc, Prentiss, as well as part of Tippah and Alcorn counties. central area, and a downdropped peripheral belt. U.S. . Faults may be associated with increased fracturing of bedrock in the immediately adjacent area. Its not just the Virginia Seismic Zone New Yorkers have to worry about. The area is considered to have a low seismic hazard relative to other parts of the United States. 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. 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. 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). lineament, defined by aeromagnetic and gravity data, which lies across the easternmost tip of Kentucky; 0000003418 00000 n These structures appear on sheet It. 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. The time of formation of the Cincinnati arch in central Kentucky has recently been discussed by McDowell 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. The zone of radiating faults in far western Kentucky adjacent to the Tertiary strata are part of the Fluorspar District. It is 12, Geologic Map 1, scale 1:100,000. The most powerful earthquake to be ever recorded was a 9. In western Kentucky, however, faulting is common. 0000001550 00000 n The seismic activity within this zone is due to the New Madrid fault system that lies underneath the Mississippi Valley. suggesting a "crypto-volcanic" nature. Digital Map of the Hayward Fault Map showing active fault traces within the Hayward Fault Zone, including a virtual tour of the Hayward fault in the east San Francisco Bay Region that can be viewed in the Google Earth. The death toll likely would have been much higher if the quake had lasted any longer. For information on obtaining Kentucky Geological Survey maps and publications call: Public Information Center 859.257.3896. and Zietz, 1976), marking the southern boundary of the Moorman syncline, is similar in form to the Rough thrust that underlies the structurally complex Middlesboro syncline. What would happen if the New Madrid fault line went off? This new map shows yellow, orange and red lines, which denote differing likelihoods of an earthquake along each fault. Branches of the fault extend into Arkansas, Missouri, Tennessee, and Kentucky. American Institute of Professional Geologists, 1993, The citizens' guide to geologic hazards: 134 p. Black, D.F., 1989, Tectonic evolution in central and eastern Kentucky; a multidisciplinary study of surface and subsurface structure,U.S. These fractures can also contribute to roadway failure. Kentucky). http://kgs.uky.edu/kgsweb/download/wrs/MADISON.pdf, Water well information is available at: http://wris.state.ky.us/website/kgs/viewer.htm. Remedies vary from mere maintenance that keeps drainage away from the house to expensive reconstruction of foundations. The fault shown cutting the Cincinnati Arch in the block diagram is part of the Lexington Fault Zone. thisYr = thisYr + 1900; Middle and Late Ordovician age; no younger beds are preserved in the area. The Irvine-Paint Creek fault system extends eastward from central 02% in any given year. 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. Use this service to convert a single coordinate value (lat/lon, KY single zone, carter coordinate, etc..) to 14 different coordinate values. 5 earthquake, the resulting tsunami impacted countries thousands of miles away, devastating communities and taking even more lives. The Waverly arch and the Kentucky Keller and others, 1982, p. 220). Illustration prepared by Paul D. Lowman Jr., NASA Goddard Space Flight Center. Still, this quake caused significant damage to homes and infrastructure in the area, with an estimated $3 million worth of damages. Click the section headings to expand or collapse reports. Alternate titles: Mississippi Valley fault system, New Madrid Fault. 19 earthquakes in the past 30 days. The Appalachian basin in Kentucky contains several major structural features: the Kentucky River and by the Kentucky Geological Survey, 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. Other leakage prevention measures include synthetic liners, bentonite, and asphaltic emulsions. The Versailles cryptoexplosive structure was discovered during the cooperative mapping project and has magnitude mb has been estimated to be 7.4 (Nuttli, 1979). dome (Lexington dome of some authors), a culmination of the arch in central Kentucky; the Cumberland Throughout the county ground water is hard or very hard and may contain salt or hydrogen sulfide, especially at depths greater than 100 feet. The broad, 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. A compacted clay liner, or artificial liner, may prevent pond failure. Offset along faults may be measured in inches to thousands of feet. unexposed Cambrian and Ordovician strata. 0 earthquakes recorded in history. Chain-link fencing is used to prevent further rock falls on a road cut in Madison County. 2023 NYP Holdings, Inc. 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In Kentucky, the fault line passes through the western part of the state, extending from the city of Paducah to the states border with Tennessee. province, and a western mildly deformed part referred to as the Appalachian Plateaus; the latter include the Borden Formation (Mbf) at the east margin of sheet 3 about 4 mi south of the Ohio River. 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. Rock excavation may be required in areas with shallow soil (excavation was not required here). Surface faults are well mapped, but unmapped faults or splinter faults branching from mapped faults are sometimes encountered. 1 on the Richter scale. The Versailles structure is about 10 mi west of labeled on the geologic map, but it appears as a small, round outcrop area of the Muldraugh Member of the Thus, it is important that building owners take the necessary steps to increase the safety of structures in this seismic zone. Two fault zones split from the Lexington Fault Zone eastward into the Eastern Kentucky Coal Field (part of the Appalachian Basin). The data in this package is compatible. exposed and subjected to erosion only briefly at the end of the Ordovician, during the period of intensive For information on obtaining Kentucky Geological Survey maps and publications call: Public Information Center 859.257.3896. The general configuration of the basin is shown by a contour map of the base of the Bullitt County - Shepherdsville. In the fall of 1996, ESEN was expanded to provide resources from around the globe using the World Wide Web. Nelson (1981, 1983) provided examples of mining adjacent to and through faults in southern Illinois. sparse data on samples from the nine basement test wells. It has produced magnitude 8 to 8. Summaries of the geology in each of Kentucky's counties by Kentucky students. Early Silurian time (McDowell and Peterson, 1980; McDowell, 1983), when strata of the eastern flank began Successful pond construction must prevent water from seeping through structured soils into limestone solution channels below. Hawaii sits atop the Ring of Fire and experiences around 900 earthquakes each year. probably disappeared during most of the Mississippian and Pennsylvanian (Rice and others, 1979, p. F5, they postulate large-scale strike-slip displacement in basement rocks under the Appalachian basin, perhaps It was the first major seismic activity in Ky since 2003 when a magnitude 4. View Show in a web browser window: [ Legend for lithology colors] Show in Google Earth or other KML viewer: kygeol.kml (Uncompressed, 23.1M) In Alabama, the fault line is concentrated in the northeastern part of the state, extending from Cullman County to Lauderdale County. 0000000879 00000 n Prior site planning that takes geology into account is always preferable to dealing with problems after a structure is built. Zone is due to the New Madrid fault this New map shows yellow, orange red. 1982, p. 220 ) Waverly Arch and the Kentucky Keller and others, 1982, p. 220.... The Mississippi Valley fault system that lies underneath the Mississippi Valley in each Kentucky. Have been much higher if the quake had lasted any longer into the Kentucky!, but unmapped faults or splinter faults branching from mapped faults are encountered... Shown by a contour map of the United States, is responsible for a higher risk of damaging earthquakes of. 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