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1887 Sonora Earthquake
The 1887 Sonora earthquake occurred at 22:13 UCT on 3 May in the Teras mountain range of northwestern Mexico. It was widely felt, with some damage being recorded up to from the epicenter in both Mexico and the United States. The earthquake had an estimated magnitude of 7.6 and caused 42 casualties in the town of Bavispe and 51 overall. It was the only historical earthquake to cause considerable damage in Arizona. The 1887 Tombstone Arizona newspapers mentioned lesser quakes (aftershocks) on August 27, 1887, and November 11, 1887. Tectonic setting The earthquake was located near the southern end of the extensional Basin and Range Province. The western margin of the Sierra Madre Occidental plateau is formed by a series of west-dipping normal faults, over a distance of at least . The earthquake occurred within this zone. Damage Towns near the epicenter suffered significant damage, particularly in Bavispe, where most houses were destroyed and 42 of the town's 700 inhabitants were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chihuahua (state)
Chihuahua (), officially the Free and Sovereign State of Chihuahua ( es, Estado Libre y Soberano de Chihuahua), is one of the 31 states which, along with Mexico City, comprise the 32 federal entities of Mexico. It is located in northwestern Mexico, and is bordered by the states of Sonora to the west, Sinaloa to the southwest, Durango to the south, and Coahuila to the east. To the north and northeast, it shares an extensive border with the U.S. adjacent to the U.S. states of New Mexico and Texas. Its capital city is Chihuahua City; the largest city is Ciudad Juárez. Although Chihuahua is primarily identified with its namesake, the Chihuahuan Desert, it has more forests than any other state in Mexico, aside from Durango. Due to its variant climate, the state has a large variety of fauna and flora. The state is mostly characterized by rugged mountainous terrain and wide river valleys. The Sierra Madre Occidental mountain range, part of the continental spine that also inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Madre Oriental
The Sierra Madre Oriental () is a mountain range in northeastern Mexico. The Sierra Madre Oriental is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of North America, Central America, South America, and Antarctica. Setting Spanning the Sierra Madre Oriental runs from the Rio Grande on the border between Coahuila and Texas south through Nuevo León, southwest Tamaulipas, San Luis Potosí, Querétaro, and Hidalgo to northern Puebla, where it joins with the east-west running Eje Volcánico Transversal of central Mexico. The northernmost are the Sierra del Burro and the Sierra del Carmen which reach the border with the United States at the Rio Grande. North of the Rio Grande, the range continues northwestward into Texas and beyond as the Davis and Guadalupe Ranges. Mexico's Gulf Coastal Plain lies to the east of the range, between the mountains and the Gul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximilian I Of Mexico
Maximilian I (german: Ferdinand Maximilian Josef Maria von Habsburg-Lothringen, link=no, es, Fernando Maximiliano José María de Habsburgo-Lorena, link=no; 6 July 1832 – 19 June 1867) was an Austrian archduke who reigned as the only Emperor of the Second Mexican Empire from 10 April 1864 until his execution on 19 June 1867. A member of the House of Habsburg-Lorraine, Maximilian was the younger brother of Emperor Franz Joseph I of Austria. He had a distinguished career as the Austrian viceroy of Lombardy–Venetia and the commander-in-chief of the Imperial Austrian Navy. His involvement in Mexico came about after France, together with Spain and the United Kingdom, had occupied the port of Veracruz in the winter of 1861 to pressure the Mexican government into settling its debts with the three powers after Mexico had announced a suspension on debt repayment earlier in the year; the Spanish and British both withdrew the following year after negotiating agreements with the Mex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porfirio Diaz
Porfirio is a given name in Spanish, derived from the Greek Porphyry (''porphyrios'' "purple-clad"). It can refer to: * Porfirio Salinas – Mexican-American artist * Porfirio Armando Betancourt – Honduran football player * Porfirio Barba-Jacob – Colombian poet and writer * Porfirio Becerril – Mexican diver * Porfirio Díaz – Mexican soldier and politician, seven times President * Porfirio DiDonna – American artist * Porfirio Lobo Sosa – Honduran President * Porfirio López – Costa Rican professional soccer player * Porfirio Muñoz Ledo – Mexican politician * Porfirio Rubirosa – Dominican diplomat * Hugo Porfírio – Portuguese footballer See also * ''Porfirio'' (film), Colombian drama * ''Porfirio Díaz'' (film), 1944 biography * Porphyry (other) * Porphyry (philosopher) Porphyry of Tyre (; grc-gre, Πορφύριος, ''Porphýrios''; ar, فُرْفُورِيُوس, ''Furfūriyūs''; – ) was a Neoplatonic philosopher born in Tyre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizona Territory
The Territory of Arizona (also known as Arizona Territory) was a territory of the United States that existed from February 24, 1863, until February 14, 1912, when the remaining extent of the territory was admitted to the Union as the state of Arizona. It was created from the western half of the New Mexico Territory during the American Civil War. History Following the expansion of the New Mexico Territory in 1853, as a result of the Gadsden Purchase, several proposals for a division of the territory and the organization of a separate Territory of Arizona in the southern half of the territory were advanced as early as 1856. These proposals arose from concerns about the ability of the territorial government in Santa Fe to effectively administer the newly acquired southern portions of the territory. The first proposal dates from a conference held in Tucson that convened on August 29, 1856. The conference issued a petition to the U.S. Congress, signed by 256 people, requesting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tombstone, Arizona
Tombstone is a historic city in Cochise County, Arizona, United States, founded in 1877 by prospector Ed Schieffelin in what was then Pima County, Arizona Territory. It became one of the last boomtowns in the American frontier. The town grew significantly into the mid-1880s as the local mines produced $40 to $85 million in silver bullion, the largest productive silver district in Arizona. Its population grew from 100 to around 14,000 in less than seven years. It is best known as the site of the Gunfight at the O.K. Corral and presently draws most of its revenue from tourism. It also houses the highest-rated brewery in the state of Arizona. The town was established on Goose Flats, a mesa above the Goodenough Mine. Within two years of its founding, although far distant from any other metropolitan area, Tombstone had a bowling alley, four churches, an ice house, a school, two banks, three newspapers, and an ice cream parlor, alongside 110 saloons, 14 gambling halls, and numerous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George E
George may refer to: People * George (given name) * George (surname) * George (singer), American-Canadian singer George Nozuka, known by the mononym George * George Washington, First President of the United States * George W. Bush, 43rd President of the United States * George H. W. Bush, 41st President of the United States * George V, King of Great Britain, Ireland, the British Dominions and Emperor of India from 1910-1936 * George VI, King of Great Britain, Ireland, the British Dominions and Emperor of India from 1936-1952 * Prince George of Wales * George Papagheorghe also known as Jorge / GEØRGE * George, stage name of Giorgio Moroder * George Harrison, an English musician and singer-songwriter Places South Africa * George, Western Cape ** George Airport United States * George, Iowa * George, Missouri * George, Washington * George County, Mississippi * George Air Force Base, a former U.S. Air Force base located in California Characters * George (Peppa Pig), a 2-year-ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismic Scales
Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize the intensity or severity of ground shaking (quaking) caused by an earthquake at a given location. Magnitudes are usually determined from measurements of an earthquake's seismic waves as recorded on a seismogram. Magnitude scales vary on what aspect of the seismic waves are measured and how they are measured. Different magnitude scales are necessary because of differences in earthquakes, the information available, and the purposes for which the magnitudes are used. Earthquake magnitude and ground-shaking intensity The Earth's crust is stressed by tectonic forces. When this stress becomes great enough to rupture the crust, or to overcome the friction that prevents one block of crust from slipping past another, energy is released, some of it in the form of various kinds of seismic waves that cause ground-shaking, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isoseismal Map
In seismology, an isoseismal map is used to show lines of equally felt seismic intensity, generally measured on the Modified Mercalli scale. Such maps help to identify earthquake epicenters, particularly where no instrumental records exist, such as for historical earthquakes. They also contain important information on ground conditions at particular locations, the underlying geology, radiation pattern of the seismic waves, and the response of different types of buildings. They form an important part of the macroseismic approach, i.e. that part of seismology dealing with noninstrumental data. The shape and size of the isoseismal regions can be used to help determine the magnitude, focal depth, and focal mechanism of an earthquake. History The first known isoseismal map was produced for the 1810 earthquake in Mór in Hungary, and published by Kitaibel and Tomtsányi in 1814. The first, six-level intensity scale was proposed by Egen in 1828 for an earthquake in Rhineland. Robert M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moment Magnitude Scale
The moment magnitude scale (MMS; denoted explicitly with or Mw, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. It was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude scale, local magnitude/Richter scale () defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales. Despite the difference, news media often says "Richter scale" when referring to the moment magnitude scale. Moment magnitude () is considered the authoritative magnitude scale for ranking earthquakes by size. It is more directly related to the energy of an earthquake than other scales, and does not saturate—that is, it does not underestimate magnitudes as other scales do in certain conditions. It has become the standard scale used by seismological authorities like the U.S. Geological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revista Mexicana De Ciencias Geológicas
The ''Revista Mexicana de Ciencias Geológicas'' is a triannual peer-reviewed open-access scientific journal published by the National Autonomous University of Mexico, Sociedad Geológica Mexicana, Instituto Nacional de Geoquímica, and Sociedad Mexicana de Paleontología. It covers the field of geology and related Earth sciences, primarily on issues that are relevant to Latin America and Mexico. It was established in 1976 and the editors-in-chief are Angel F. Nieto Samaniego and Peter Schaaf (National Autonomous University of Mexico). Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2016 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 0.815. References External links * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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