|
Lateral Eruption
A lateral eruption or lateral blast is a volcanic eruption which is directed laterally from a volcano rather than upwards from the summit. Lateral eruptions are caused by the outward expansion of flanks due to rising magma. Breaking occurs at the flanks of volcanoes making it easier for magma to flow outward. As magma is pushed upward towards the volcano it diverges towards the flanks before it has a chance to erupt from the crater. When the expanding flank finally gives it releases a flow of magma. More explosive lateral eruptions are referred to as lateral blasts. Some of the most notable examples of a lateral eruption include Mount St. Helens, Mount Pelée, and Mount Etna. Creation of a lateral eruption Most eruptions are caused by the immediate decompression of a magma chamber near the flanks of the volcano. During an eruption, the rapid decompression of magma may cause subsidence of the mountain, and if a flank collapses, a lateral eruption occurs. The directed nature o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount St
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Books * '' Mount!'', a 2016 novel by Jilly Cooper Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** To prepare dead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington (state)
Washington, officially the State of Washington, is a U.S. state, state in the Pacific Northwest region of the United States. It is often referred to as Washington State to distinguish it from Washington, D.C., the national capital, both named after George Washington (the first President of the United States, U.S. president). Washington borders the Pacific Ocean to the west, Oregon to the south, Idaho to the east, and shares Canada–United States border, an international border with the Provinces and territories of Canada, Canadian province of British Columbia to the north. Olympia, Washington, Olympia is the List of capitals in the United States, state capital, and the most populous city is Seattle. Washington is the List of U.S. states and territories by area, 18th-largest state, with an area of , and the List of U.S. states and territories by population, 13th-most populous state, with a population of just less than 8 million. The majority of Washington's residents live ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Meru (Tanzania)
__NOTOC__ Mount Meru is a dormant stratovolcano located west of Kilimanjaro in southeast Arusha Region, Tanzania. At a height of , it is visible from Mount Kilimanjaro on a clear day, and is the fifth-highest of the highest mountain peaks of Africa, dependent on definition. Mount Meru is located just north of the city of Arusha, in the Arusha Region of Tanzania. It is the second-highest mountain in Tanzania, after Mount Kilimanjaro, and the highest mountain in Arusha Region. The Momella route – which starts at Momella gate, on the eastern side of the mountain – is the most common route for climbers to reach the peak. Mount Meru's lavas are alkaline in character and include nephelinite. Much of the mountain's height was lost about 7,800 years ago due to a summit collapse. Mount Meru most recently had a minor eruption in 1910. The several small cones and craters seen in the vicinity probably reflect numerous episodes of volcanic activity. Mount Meru's caldera is wide. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevado De Toluca
Nevado de Toluca () is a stratovolcano in central Mexico, located about west of Mexico City near the city of Toluca. It is the fourth highest of Mexico's peaks, after Pico de Orizaba, Popocatépetl and Iztaccíhuatl. The volcano and the area around it is now a national park. Etymology It is often called by the Nahuatl name Xinantecatl which is usually translated as The Naked Lord, ''Señor Desnudo'' in Spanish, although other etymologies have been suggested such as "Lord of the Corn Stalks" (Chinantecatl), Tzinacantepetl (Mountain of the Bats), or Tzinacantecatl (person from Zinacantepec). Further evidence regarding the etymologies of this mountain has surfaced after many archeology discoveries in and around the area. It has been concluded that its correct etymology is Chicnauhtecatl meaning "Lord of Nine", probably referring to the various deep lakes at the top of the cone. Description The volcano has a wide summit caldera which is open to the east. The highest summit, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Peaks
The San Francisco Peaks (Navajo: , , Hopi: ''Nuva'tukya'ovi'', Western Apache: ''Dził Tso'', Keres: ''Tsii Bina'', Southern Paiute: ''Nuvaxatuh'', Havasupai-Hualapai: ''Hvehasahpatch''/''Huassapatch''/''Wik'hanbaja'', Yavapai: ''Wi:mun Kwa'', Zuni: ''Sunha K'hbchu Yalanne'', Mojave: '' 'Amat 'Iikwe Nyava'') are a volcanic mountain range in the San Francisco volcanic field in north central Arizona, just north of Flagstaff. The Peaks are the remnant of the former San Francisco Mountain, a prehistoricaly larger single stratovolcano. The highest summit in the range, Humphreys Peak, is the highest point in the state of Arizona at in elevation. An aquifer within the caldera supplies much of Flagstaff's water while the mountain itself is in the Coconino National Forest, a popular recreation site. The Arizona Snowbowl ski area is on the western slopes of Humphreys Peak, and has been the subject of major controversy involving several tribes and environmental groups. Geography ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1902 Eruption Of Mount Pelée
The 1902 eruption of Mount Pelée was a volcanic eruption on the island of Martinique in the Lesser Antilles Volcanic Arc of the eastern Caribbean, which was one of the deadliest eruptions in recorded history. Eruptive activity began on 23 April as a series of phreatic eruptions from the summit of Mount Pelée. Within days, the vigor of these eruptions exceeded anything witnessed since the island was settled by Europeans. The intensity then subsided for a few days until early May, when the phreatic eruptions increased again. Lightning laced the eruption clouds and trade winds dumped ash on villages to the west. Heavy ash fell, sometimes causing total darkness. Some of the afflicted residents panicked and headed for the perceived safety of larger settlements, especially Saint-Pierre, Martinique, Saint-Pierre, about south of Pelée's summit. Saint-Pierre received its first ash fall on 3 May. Mount Pelée remained relatively quiet until the afternoon of 5 May when a mudflow swept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean
The Caribbean ( , ; ; ; ) is a region in the middle of the Americas centered around the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean, mostly overlapping with the West Indies. Bordered by North America to the north, Central America to the west, and South America to the south, it comprises numerous List of Caribbean islands, islands, cays, islets, reefs, and banks. It includes the Lucayan Archipelago, Greater Antilles, and Lesser Antilles of the West Indies; the Quintana Roo Municipalities of Quintana Roo#Municipalities, islands and Districts of Belize#List, Belizean List of islands of Belize, islands of the Yucatán Peninsula; and the Bay Islands Department#Islands, Bay Islands, Miskito Cays, Archipelago of San Andrés, Providencia and Santa Catalina, Archipelago of San Andrés, Providencia, and Santa Catalina, Corn Islands, and San Blas Islands of Central America. It also includes the coastal areas on the Mainland, continental mainland of the Americas bordering the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martinique
Martinique ( ; or ; Kalinago language, Kalinago: or ) is an island in the Lesser Antilles of the West Indies, in the eastern Caribbean Sea. It was previously known as Iguanacaera which translates to iguana island in Carib language, Kariʼnja. A part of the French West Indies (Antilles), Martinique is an Overseas departments and regions of France, overseas department and region and a single territorial collectivity of France. It is a part of the European Union as an outermost region within the special territories of members of the European Economic Area, and an associate member of the Caribbean Community, CARICOM, the Organization of Eastern Caribbean States (OECS), the Association of Caribbean States (ACS), and the Economic Commission for Latin America and the Caribbean (ECLAC) but is not part of the Schengen Area or the European Union Customs Union. The currency in use is the euro. It has been a UNESCO Biosphere Reserve since 2021 for its entire land and sea territory. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the structural integrity of such a chamber, greatly diminishing its capacity to support its own roof and any substrate or rock resting above. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a Volcanic crater, crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur over the course of a century, the formation of a caldera is a rare event, occurring only a few times within a given window of 100 years. Only eight caldera-forming collapses are known to have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders of Russia, land borders with fourteen countries. Russia is the List of European countries by population, most populous country in Europe and the List of countries and dependencies by population, ninth-most populous country in the world. It is a Urbanization by sovereign state, highly urbanised country, with sixteen of its urban areas having more than 1 million inhabitants. Moscow, the List of metropolitan areas in Europe, most populous metropolitan area in Europe, is the capital and List of cities and towns in Russia by population, largest city of Russia, while Saint Petersburg is its second-largest city and Society and culture in Saint Petersburg, cultural centre. Human settlement on the territory of modern Russia dates back to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamchatka Peninsula
The Kamchatka Peninsula (, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and western coastlines, respectively. Immediately offshore along the Pacific coast of the peninsula runs the Kuril–Kamchatka Trench. The Kamchatka Peninsula, the Commander Islands, and Karaginsky Island constitute Kamchatka Krai of the Russian Federation. The majority of the 322,079 inhabitants are ethnic Russians, with about 13,000 being Koryaks (2014). More than half of the population lives in Petropavlovsk-Kamchatsky (179,526 in 2010) and nearby Yelizovo (38,980). The Kamchatka Peninsula contains the volcanoes of Kamchatka, a UNESCO World Heritage Site, that form part of the Ring of Fire. Geography Politically, the peninsula forms part of Kamchatka Krai. The southern tip is called Cape Lopatka. (Lopatka is Russian for spade.) The circular bay to the north of this on the Pacific side is Ava ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bezymianny
Bezymianny ( ''Bezymyannyyi'', meaning ''unnamed'') is an active stratovolcano in Kamchatka Peninsula, Kamchatka, Russia. Bezymianny volcano had been considered extinct until 1955. Activity started in 1955, culminating in a dramatic eruption on 30 March 1956. This eruption, similar to the 1980 eruption of Mount St. Helens, produced a large horseshoe-shaped crater that was formed by a sector collapse and an associated Lateral eruption, lateral blast. Subsequent episodic but ongoing lava dome growth, accompanied by intermittent explosive activity and pyroclastic flows, has largely filled the 1956 crater. The most recent eruption of lava flows occurred in February 2013. An explosive eruption on 20 December 2017 released an ash plume rising to a height of above sea level, which drifted for NE. The volcano erupted similarly on 28 May 2022, again spewing an ash plume over high. On April 7, 2023, Russia reported Bezymianny had erupted explosively again and the Federal Agency for Air Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
