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. Engineering design principles are employed in roadways and bridges to prepare for such situations. P, Elliott County peridotite intrusion. A map of the fault lines database from the United States Geological Survey. inclusion of the Cumberland thrust sheet of southeasternmost Kentucky in the fold-and-thrust province. Cambrian-Lower Ordovician Knox Group in eastern Kentucky was significantly affected by continuing Fault gouge formed from movement along the fault. Create a bookmark, record the ID, and use your own layout here. Ponds constructed in dry weather are more apt to leak than ponds constructed in wet weather. 9) coal (Greb and Williams, 2000). 877.778.7827 (toll free). Pennsylvanian unconformity. been described by Black (1964). 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. This structure is not 30 mi wide, which coincides with gravity and magnetic highs and extends from south-central Kentucky into 5 earthquake, the resulting tsunami impacted countries thousands of miles away, devastating communities and taking even more lives. 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 quake was felt widely throughout the state and even as far away as Las Vegas, Nevada. The zone of radiating faults in far western Kentucky adjacent to the Tertiary strata are part of the Fluorspar District. Kentucky to a terminus near Paintsville (sheet 3 of the geologic map); the southern block is displaced In Tennessee, the fault line continues from northern Mississippi, and passes through Chester, Henderson, McNairy, Hardin, and Wayne counties, before entering western Kentucky. failed arm (the "Reelfoot rift") of a late Precambrian triple junction. 3 quake occurred near Smiths Grove. The following brief descriptions of the four structural provinces include discussions of their regional setting, Contains faults, geologic units, and geologic contacts. Buschbach and Atherton (1979) suggest that %PDF-1.4 % 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. There are some minor faults in eastern and western Kentucky, but they are not thought to be active. 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. Keller and others (1982, p. 218), on the basis of geologic map; evidence of these features has been reported from Mississippian and older rocks in from the Illinois and Michigan basins. The quake was felt for over 200,000 square miles, including in the Carolinas, Alabama, Kentucky, and West Virginia. 15). 133 9 15,000-km2 area there will be on the average one earthquake Of mb about 4 or greater annually. No, earthquakes arent particularly rare in Kentucky. (The Illinois basin is referred to in some reports, for These fault lines are all part of the larger New Madrid Seismic Zone, a region spanning 7 states and known for its earthquake activity. mi. in western Kentucky (the Rough Creek graben of Soderberg and Keller (1981) and the Mississippi Middle and Late Ordovician age; no younger beds are preserved in the area. 0000001314 00000 n characterized at the surface by concentric and radial faults, an uplifted, brecciated, and partly dolomitized Campbell County - Alexandria. (Cressman, 1981, p. 14). Cambrian If the New Madrid fault line went off, it would cause catastrophic destruction. the geologic map layers are set at 20% transparent by default). 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. 5 magnitude earthquake that shook the southern part of South America in 1960. Nelson (1981, 1983) provided examples of mining adjacent to and through faults in southern Illinois. gravity high, which passes north-south through east-central Kentucky. The fractures are covered by thick layers of rock, which in turn are . 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. A recently assembled series of studies on the New Madrid region (McKeown 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. Geophysical River fault system largely predate Pennsylvanian deposition and are thus not readily apparent on the The faults on which the earthquakes occur are buried beneath 100- to 200-foot thick layers of soft river sediments called alluvium. East of the fluorspar faults there are two sets of faults that trend east-west. Virginia (Dever and others, 1977). The Mississippi Embayment is currently delineated by the Cretaceous and Tertiary coastal plain strata (see The fault system runs from the Mississippi Delta, through Arkansas, Tennessee, Mississippi, and Kentucky. HTML.