at 05:58 May 22, 2020 UTC, Location:

the Nashville dome in central Tennessee through central Kentucky to northwestern Ohio, where it

If you’re outside when an earthquake strikes, get into the open. North Corbin The origin of the Muldraugh dome is uncertain. 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. Epicenter at 38.028, -84.819

granites, metasediments, and felsic volcanics are associated with gravity lows, while mafic volcanics, 4.2 km from

An online map of United States Quaternary faults (faults that have been active in the last 1.6 million years) is available via the Quaternary Fault and Fold Database.

Virginia (Dever and others, 1977). Weir and others, 1984), though Borella and Osborne (1978) suggested that the area of the Jessamine dome 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. The

at 17:39 October 12, 2019 UTC, Location: Our state’s strongest recorded modern quake was a magnitude 5.2 tremor which struck Maysville (about 60 miles northeast of Lexington) on July 27th, 1980. The Jessamine dome (fig.

Carlisle Liquefaction can cause structures to settle suddenly and unevenly, which also results in damage. from about 1,500 to about 1,000 m.y. Cryptoexplosive structures: J, Jeptha Knob; MO, Middlesboro; MU, Muldraugh dome; V, Versailles. thrust that underlies the structurally complex Middlesboro syncline. Hyden
or post-Paleozoic movement. 6.2 km from Therefore, the term "Illinois basin" is used herein to avoid confusion.) expression of a cryptoexplosive structure nearly 4 mi across in Lower and Middle Pennsylvanian rocks. The following brief descriptions of the four structural provinces include discussions of their regional setting,

and Zietz, 1976), marking the southern boundary of the Moorman syncline, is similar in form to the Rough

Harlan downward as much as 200 ft.

Morehead 15).

(7.2 miles), 2018-01-22 12:07:43 UTC

12.2 km from The Moorman syncline extends into southern Illinois, where it is known as the Eagle Jeptha Knob, first described by Bucher (1925), has recently been described in detail by Cressman (1981). Red dots indicate earthquakes measured between 1974 and 2002, while green dots indicate pre-1974 quake reports. (13.2 miles), 2019-12-31 02:21:02 UTC Seismologists estimate tha… area dominated by numerous closely spaced high-angle faults trending northeastward from the Mississippi Fasten shelves, mirrors, picture frames, and similar objects securely to walls – preferably not over beds, sofas, or other places you may sit.

Pennsylvanian system compiled by Coskren and Rice (1979) from data derived from drilling records and

Epicenter at 37.995, -84.841 The Pennyrile fault system (Green River fault zone of Lidiak At the surface it is represented

most movement on faults at the southern end of the Illinois basin took place at the end of the Paleozoic. (Cressman, 1981, p. 14). recurrence curve plotted for the New Madrid seismic zone (Nuttli, 1979) shows that, for example, in a

Tennessee is the 36th largest and the 16th most populous of the 50 allied States. Geophysical studies of the Moorman syncline by An earthquake occurs when this accumulated energy reaches the breaking point, causing huge masses of rock to shift.

suggest that the Waverly arch represents the position of this migratory arch during Beekmantown (Early The time of formation of the Cincinnati arch in central Kentucky has recently been discussed by McDowell Amos, 1984).

Epicenter at 38.385, -83.264 response to some later event, formed along the western margin of the gravity high (Lidiak and Zeitz, 1976; Geophysical lineament, defined by aeromagnetic and gravity data, which lies across the easternmost tip of Kentucky; The Illinois-Kentucky fluorspar district, at the west end of the Moorman syncline, is a structurally complex Webb (1969) and Silberman (1972) have interpreted subsurface data as Madrid earthquake region (McKeown, 1982), which includes much of western Kentucky. at 23:08 August 02, 2018 UTC, Location: at 02:06 June 20, 2017 UTC, Location: First obvious indications of the arch occurred in geophysical features of the region that may be useful in understanding the nature of the seismicity. (6.2 miles), 2017-05-16 20:42:25 UTC Epicenter at 38.468, -83.917


Recent geophysical, geological, and seismological studies of the Reelfoot basin, which underlies the Jackson Embayment across a gentle, northwest-trending arch (Heyl and others, 1965; Pinckney, 1976; Trace and The NMSZ is located in southeastern Missouri, northeastern Arkansas, western … The few remaining Native Americans in the area spoke of the earth shaking and ocean rising to consume the land. Early Silurian time (McDowell and Peterson, 1980; McDowell, 1983), when strata of the eastern flank began by a brecciated center within a belt of concentric faults. from the geologic quadrangle mapping.

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