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1895 Charleston Earthquake
The 1895 Charleston earthquake, also known as the Halloween earthquake, occurred on October 31, at 05:07 CST near Charleston, Missouri. It had an estimated moment magnitude of 5.8–6.6 and evaluated Modified Mercalli intensity of VIII (''Severe''). The earthquake caused substantial property damage in the states of Missouri, Illinois, Ohio, Alabama, Iowa, Kentucky, Indiana, and Tennessee. Shaking was widespread, being felt across 23 states and even in Canada. At least two people died and seven were injured. Tectonic setting The New Madrid Seismic Zone located in the midcontinental United States is a region of concentrated seismic activity. This zone is within the Reelfoot Rift, a failed rift trending northeast. Faulting within the rift occasionally causes small to moderate earthquakes. In 1811–1812, a series of large earthquakes occurred on the rift, causing great devastation. Martin and Hough postulated three different plausible events, a north-northwest rupture from Henson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memphis, Tennessee
Memphis is a city in the U.S. state of Tennessee. It is the seat of Shelby County in the southwest part of the state; it is situated along the Mississippi River. With a population of 633,104 at the 2020 U.S. census, Memphis is the second-most populous city in Tennessee, after Nashville. Memphis is the fifth-most populous city in the Southeast, the nation's 28th-largest overall, as well as the largest city bordering the Mississippi River. The Memphis metropolitan area includes West Tennessee and the greater Mid-South region, which includes portions of neighboring Arkansas, Mississippi and the Missouri Bootheel. One of the more historic and culturally significant cities of the Southern United States, Memphis has a wide variety of landscapes and distinct neighborhoods. The first European explorer to visit the area of present-day Memphis was Spanish conquistador Hernando de Soto in 1541. The high Chickasaw Bluffs protecting the location from the waters of the Mississipp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kansas City
The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri. Business enterprises and employers include Cerner Corporation (the largest, with almost 10,000 local employees and about 20,000 global employees), AT&T, BNSF Railway, GEICO, Asurion, T-Mobile (formerly Sprint), Black & Veatch, AMC Theatres, Citigroup, Garmin, Hallmark Cards, Waddell & Reed, H&R Block, General Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indianapolis
Indianapolis (), colloquially known as Indy, is the state capital and most populous city of the U.S. state of Indiana and the seat of Marion County. According to the U.S. Census Bureau, the consolidated population of Indianapolis and Marion County was 977,203 in 2020. The "balance" population, which excludes semi-autonomous municipalities in Marion County, was 887,642. It is the 15th most populous city in the U.S., the third-most populous city in the Midwest, after Chicago and Columbus, Ohio, and the fourth-most populous state capital after Phoenix, Arizona, Austin, Texas, and Columbus. The Indianapolis metropolitan area is the 33rd most populous metropolitan statistical area in the U.S., with 2,111,040 residents. Its combined statistical area ranks 28th, with a population of 2,431,361. Indianapolis covers , making it the 18th largest city by land area in the U.S. Indigenous peoples inhabited the area dating to as early as 10,000 BC. In 1818, the Lenape relinquished their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bellevue, Pennsylvania
Bellevue is a borough in Allegheny County, Pennsylvania, United States, along the Ohio River, adjoining Pittsburgh. The population was 8,311 at the 2020 census. The borough was incorporated in 1867. There is a public park and library, the Andrew Bayne Memorial Library. Education Bellevue is served by the Northgate School District. History The land on which the borough currently sits was once part of the Depreciation Lands reserved for Revolutionary War veterans. The first landowners in the area were James Robinson and Hugh Henry Brackenridge, purchasing parcels in 1799 and 1792 respectively. At the time of its organization as a borough, Bellevue had exactly the minimum population for such a designation: 300 residents. Residents of the area tried unsuccessfully to obtain improvements from Ross Township, but officials were opposed to development along Venango Trail (today Route 19). In response, Bellevue was incorporated as a borough independent of Ross on September 7, 1867 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McKeesport, Pennsylvania
McKeesport is a city in Allegheny County, Pennsylvania, United States. It is situated at the confluence of the Monongahela and Youghiogheny rivers and within the Pittsburgh metropolitan area. The population was 17,727 as of the 2020 census. It is Allegheny County's second biggest city after Pittsburgh. History Early history David McKee emigrated from Scotland and was the first permanent white settler at the forks of the Monongahela and Youghiogheny Rivers, the site of present-day McKeesport, in 1755. Around the time of the French and Indian Wars, George Washington often came to McKeesport to visit his friend, Queen Alliquippa, a Seneca Indian ruler. The Colonial Government granted David McKee exclusive right of ferrage over those rivers on April 3, 1769, called "McKee's Port". His son, John McKee, an original settler of Philadelphia, built a log cabin at this location. After taking over his father's local river ferry business, he devised a plan for a city to be called McKee' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Exchange
A telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers. In historical perspective, telecommunication terms have been used with different semantics over time. The term ''telephone exchange'' is often used synonymously with ''central office'', a Bell System term. Often, a ''central office'' is defined as a building used to house the inside plant equipment of potentially several telephone exchanges, each serving a certain geographical area. Such an area has also been referred to as the exchange or exchange area. In North America, a central office location may also be identified as a ''wire center'', designating a facility to which a telephone is connected and obtains dial tone. For business and billing purposes, telecommunication carriers defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cincinnati
Cincinnati ( ) is a city in the U.S. state of Ohio and the county seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line with Kentucky. The city is the economic and cultural hub of the Cincinnati metropolitan area. With an estimated population of 2,256,884, it is Ohio's largest metropolitan area and the nation's 30th-largest, and with a city population of 309,317, Cincinnati is the third-largest city in Ohio and 64th in the United States. Throughout much of the 19th century, it was among the top 10 U.S. cities by population, surpassed only by New Orleans and the older, established settlements of the United States eastern seaboard, as well as being the sixth-most populous city from 1840 until 1860. As a rivertown crossroads at the junction of the North, South, East, and West, Cincinnati developed with fewer immigrants and less influence from Europe than Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slate
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression. The foliation in slate is called "slaty cleavage". It is caused by strong compression causing fine grained clay flakes to regrow in planes perpendicular to the compression. When expertly "cut" by striking parallel to the foliation, with a specialized tool in the quarry, many slates will display a property called fissility, forming smooth flat sheets of stone which have long been used for roofing, floor tiles, and other purposes. Slate is frequently grey in color, especially when seen, en masse, covering roofs. However, slate occurs in a variety of colors even from a single locality; for ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avery, Iowa
Avery is an Unincorporated area, unincorporated community in Monroe County, Iowa, Monroe County, Iowa, United States. Geography It is located at the intersection of County RoadH27 and 700thAvenue, northeast of Albia, Iowa, Albia, at 41.063413N, -92.716236W. History Avery was founded in 1868 when the Chicago, Burlington and Quincy Railroad was constructed through the area. It was originally named Coffman, after the owner of the townsite. The name was later changed to Avery, after nearby AveryCreek. Avery's population was 300 in 1940. References {{Authority control Populated places established in 1868 Unincorporated communities in Iowa Unincorporated communities in Monroe County, Iowa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bardwell, Kentucky
Bardwell is a home rule-class city in and the county seat of Carlisle County, Kentucky, United States. The city was formally incorporated by the state assembly in 1878. The population was 714 at the 2020 census, down from 723 in 2010. History Bardwell was founded in 1874 when a predecessor rail line of the Illinois Central Railroad was extended to that point. It may have initially been known as "Crittenden" after Governor John J. Crittenden, but that name was already in use elsewhere in the state, so the name was changed to "Bardwell." According to some sources, "Bardwell" was the name of a railroad superintendent whose name had been applied to a railroad construction camp near the town site. Other sources suggest the name was inspired by a "boarded well" at the camp. During their session of 1877–1878, the Kentucky General Assembly passed an act incorporating Bardwell. The original municipal boundaries consisted of a circle with a radius of , centered on the local train st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio River
The Ohio River is a long river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing southwesterly from western Pennsylvania to its mouth on the Mississippi River at the southern tip of Illinois. It is the third largest river by discharge volume in the United States and the largest tributary by volume of the north-south flowing Mississippi River that divides the eastern from western United States. It is also the 6th oldest river on the North American continent. The river flows through or along the border of six states, and its drainage basin includes parts of 14 states. Through its largest tributary, the Tennessee River, the basin includes several states of the southeastern U.S. It is the source of drinking water for five million people. The lower Ohio River just below Louisville is obstructed by rapids known as the Falls of the Ohio where the elevation falls in restricting larger commercial navigation, although in the 18th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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