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1877 Iquique Earthquake
The 1877 Iquique earthquake occurred at 21:16 local time on 9 May (0:59 on 10 May UTC). It had a magnitude of 8.5 on the surface-wave magnitude scale. Other estimates of its magnitude have been as high as 8.9 and 9.0 (based on the size of the tsunami). It had a maximum intensity of XI (Extreme) on the Mercalli intensity scale and triggered a devastating tsunami. A total of 2,385 people died, mainly in Fiji from the tsunami. Historical context Affected areas in what was then part of Bolivia but is now the Antofagasta region of Chile, had during this period been subject to the Atacama border dispute between the two countries. Under the 1874 boundary treaty between Bolivia and Chile, the border between the two nations as of 1877 followed the 24th parallel south. The terms of that treaty required that Bolivia not levy taxes on Chilean companies mining nitrates between the 23rd and 24th parallels (including the city of Antofagasta) for 25 years, except for agreed duties to be sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peru
Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pacific Ocean. Peru is a Megadiverse countries, megadiverse country, with habitats ranging from the arid plains of the Pacific coastal region in the west, to the peaks of the Andes mountains extending from the north to the southeast of the country, to the tropical Amazon basin rainforest in the east with the Amazon River. Peru has Demographics of Peru, a population of over 32 million, and its capital and largest city is Lima. At , Peru is the List of countries and dependencies by area, 19th largest country in the world, and the List of South American countries by area, third largest in South America. Pre-Columbian Peru, Peruvian territory was home to Andean civilizations, several cultures during the ancient and medieval periods, and has one o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quintal
The quintal or centner is a historical unit of mass in many countries that is usually defined as 100 base units, such as pounds or kilograms. It is a traditional unit of weight in France, Portugal, and Spain and their former colonies. It is commonly used for grain prices in wholesale markets in Ethiopia, Eritrea and India, where 1 quintal = . In British English, it referred to the hundredweight; in American English, it formerly referred to an uncommon measurement of . Languages drawing its cognate name for the weight from Romance languages include French, Portuguese, Romanian and Spanish , Italian , Esperanto , Polish . Languages taking their cognates from Germanicized ''centner'' include the German , Lithuanian , Swedish , Polish , Russian and Ukrainian () and Estonian . Many European languages have come to translate both the British hundredweight (8 stone or ) and the American hundredweight (), as their cognate form of ''quintal'' or ''centner''. Name The concept has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iquique
Iquique () is a port List of cities in Chile, city and Communes of Chile, commune in northern Chile, capital of both the Iquique Province and Tarapacá Region. It lies on the Pacific coast, west of the Pampa del Tamarugal, which is part of the Atacama Desert. It has a population of 191,468 according to the 2017 census. It is also the main commune of Greater Iquique. The city developed during the heyday of the Potassium nitrate, saltpetre mining in the Atacama Desert in the 19th century. Once a Peruvian city with a large Chilean population, it was conquered by Chile in the War of the Pacific (1879–1883). Today it is one of only two free ports of Chile, the other one being Punta Arenas, in the country's far south. History Although the city was founded in the 16th century, there is evidence of habitation in the area by the Changos, Chango people as early as 7,000 BC. During colonial times, Iquique was part of the Viceroyalty of Peru as much of South America was at the time, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hilo, Hawaii
Hilo () is the largest settlement in and the county seat of Hawaii County, Hawaiʻi, United States, which encompasses the Island of Hawaiʻi, and is a census-designated place (CDP). The population was 44,186 according to the 2020 census. It is the fourth-largest settlement in the state of Hawaiʻi, the largest settlement in the state outside of Oahu, and the largest settlement in the state outside of the Greater Honolulu Area. Hilo is in the District of South Hilo. The city overlooks Hilo Bay and has views of two shield volcanoes, Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano. The Hilo bayfront has been destroyed by tsunamis twice. The majority of human settlement in Hilo stretches from Hilo Bay to Waiākea-Uka, on the flanks of the volcanoes. Hilo is home to the University of Hawaii at Hilo, ʻImiloa Astronomy Center, as well as the Merrie Monarch Festival, a week-long celebration, including three nights of competition, of ancient and modern hula th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colony Of Fiji
The Colony of Fiji was a Crown colony that existed from 1874 to 1970 in the territory of the present-day nation of Fiji. London declined its first opportunity to annex Fiji in 1852. Ratu Seru Epenisa Cakobau had offered to cede the islands, subject to being allowed to retain his '' Tui Viti'' (King of Fiji) title. His demand was unacceptable to both the British and to many of his fellow chiefs, who regarded him only as first among equals, if that. Mounting debts and threats from the United States Navy had led Cakobau to establish a constitutional monarchy with a government dominated by European settlers in 1871, following an agreement with the Australian Polynesia Company to pay his debts. The collapse of the new regime drove him to make another offer of cession in 1872, which the British accepted. On 10 October 1874, Britain began its rule of Fiji, which lasted until 10 October 1970. "Fiji for the Fijians" Sir Hercules Robinson, who had arrived on 23 September 1874, was ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1868 Arica Earthquake
The 1868 Arica earthquake occurred on 13 August 1868, near Arica, then part of Peru, now part of Chile, at 21:30 UTC. It had an estimated magnitude between 8.5 and 9.3. A tsunami (or multiple tsunamis) in the Pacific Ocean was produced by the earthquake, which was recorded in Hawaii, Japan, Australia, and New Zealand. Tectonic setting The earthquake occurred along the boundary between the Nazca plate and the South American plate. The earthquake was likely a result of thrust fault, thrust-faulting, caused by the subduction of the Nazca plate beneath the South American plate. The coasts of Peru and Chile have a history of great megathrust earthquakes originating from this plate boundary, such as the 1960 Valdivia earthquake and the 2010 Chile earthquake. Damage The earthquake caused almost complete destruction in the southern part of Peru, including Arica Province (Peru), Arica, Tacna, Moquegua, Mollendo, Ilo, Peru, Ilo, Iquique, Torata District, Torata and Arequipa, resultin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Wateree (1863)
The first USS ''Wateree'' was a sidewheel gunboat in the United States Navy during the American Civil War. ''Wateree'' was built at Chester, Pennsylvania, by Reaney, Son & Archbold; launched on 12 August 1863; and commissioned at the Philadelphia Navy Yard on 20 January 1864, Comdr. F. E. Murray in command. Service history Assigned to the Pacific Squadron, ''Wateree'' departed Philadelphia soon after commissioning. During the next 10 months, she made the arduous voyage around Cape Horn to the Pacific Ocean. In addition to struggling against the heavy weather for which the Cape region is noted, the warship experienced difficulty acquiring fuel. That problem necessitated her making numerous stops along the way to acquire wood for her boilers; and, as a result, ''Wateree'' did not reach San Francisco, until mid-November 1864. Upon her arrival there, the ship entered the Mare Island Navy Yard for repairs to damage she suffered during her arduous voyage and for a hull scraping. She ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megathrust Earthquake
Megathrust earthquakes occur at convergent plate boundaries, where one tectonic plate is forced underneath another. The earthquakes are caused by slip along the thrust fault that forms the contact between the two plates. These interplate earthquakes are the planet's most powerful, with moment magnitudes (''Mw'') that can exceed 9.0. Since 1900, all earthquakes of magnitude 9.0 or greater have been megathrust earthquakes. The thrust faults responsible for megathrust earthquakes often lie at the bottom of oceanic trenches; in such cases, the earthquakes can abruptly displace the sea floor over a large area. As a result, megathrust earthquakes often generate tsunamis that are considerably more destructive than the earthquakes themselves. Teletsunamis can cross ocean basins to devastate areas far from the original earthquake. Terminology and mechanism The term ''megathrust'' refers to an extremely large thrust fault, typically formed at the plate interface along a subduction zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peru–Chile Trench
The Peru–Chile Trench, also known as the Atacama Trench, is an oceanic trench in the eastern Pacific Ocean, about off the coast of Peru and Chile. It reaches a maximum depth of below sea level in Richards Deep () and is approximately long; its mean width is and it covers an expanse of some . The trench delineates the boundary between the subduction, subducting Nazca plate and the overriding South American plate. Geology The trench is a result of a convergent plate boundary, where the eastern edge of the oceanic Nazca plate is being subduction, subducted beneath the continental South American plate. The trench is also a part of the Chile triple junction, an unusual junction that consists of a Mid-ocean ridge, mid-oceanic ridge and the Chile Rise being subducted under the South American plate at the Peru–Chile Trench. Two seamount ridges within the Nazca plate enter the subduction zone along this trench: the Nazca Ridge and the Juan Fernández Ridge. From the Chile triple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South American Plate
The South American plate is a major tectonic plate which includes the continent of South America as well as a sizable region of the Atlantic Ocean seabed extending eastward to the African plate, with which it forms the southern part of the Mid-Atlantic Ridge. The easterly edge is a divergent boundary with the African plate; the southerly edge is a complex boundary with the Antarctic plate, the Scotia plate, and the Sandwich Plate; the westerly edge is a convergent boundary with the subducting Nazca plate; and the northerly edge is a boundary with the Caribbean plate and the oceanic crust of the North American plate. At the Chile triple junction, near the west coast of the Taitao– Tres Montes Peninsula, an oceanic ridge known as the Chile Rise is actively subducting under the South American plate. Geological research suggests that the South American plate is moving west away from the Mid-Atlantic Ridge: "Parts of the plate boundaries consisting of alternations of re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subduction
Subduction is a geological process in which the oceanic lithosphere and some continental lithosphere is recycled into the Earth's mantle at the convergent boundaries between tectonic plates. Where one tectonic plate converges with a second plate, the heavier plate dives beneath the other and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with rates of convergence as high as 11 cm/year. Subduction is possible because the cold and rigid oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle. Once initiated, stable subduction is driven mostly by the negative buoyancy of the dense subducting lithosphere. The down-going slab sinks into the mantle largely under its own ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nazca Plate
The Nazca plate or Nasca plate, named after the Nazca region of southern Peru, is an oceanic list of tectonic plates, tectonic plate in the eastern Pacific Ocean basin off the west coast of South America. The ongoing subduction, along the Peru–Chile Trench, of the Nazca plate under the South American plate is largely responsible for the Andes, Andean orogeny. The Nazca plate is bounded on the west by the Pacific plate and to the south by the Antarctic plate through the East Pacific Rise and the Chile Rise, respectively. The movement of the Nazca plate over several Hotspot (geology), hotspots has created some volcanic islands as well as east–west running seamount chains that subduct under South America. Nazca is a relatively young plate in terms of the age of its rocks and its existence as an independent plate, having been formed from the breakup of the Farallon plate about 23 million years ago. The oldest rocks of the plate are about 50 million years old. Boundaries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
