If the lava is extremely thick, it is capable of building up in the volcano and explode, known as lava domes. Volcanic Ash Forecast Transport And Dispersion, Volcanic Legacy Scenic Byway - California. (Volcanic eruption influenced Iceland’s conversion to Christianity, University of Cambridge) Usage Examples. the ejection of molten rock, steam, etc., as from a volcano or geyser. The lava travels far and generates broad shield volcanoes when it flows easily. Stay tuned to BYJU’S to know more about types of volcanoes, igneous rocks and much more. These are often named after famous volcanoes where that type of behavior has been observed. ‘Others, called volcanic earthquakes, are usually shallower and can be precursors to volcanic eruptions and intrusions of magma.’ ‘Lava flows and smaller eruptions continued for decades.’ ‘The June 1991 Mount Pinatubo eruption produced voluminous pyroclastic flows and a major Plinian umbrella cloud during its paroxysmal phase.’ We don't care how many ads you see or how many pages you view. When it is too thick, it makes a familiar cone volcano shape. https://www.thefreedictionary.com/volcanic+eruption, She gathered up her baby once more; but when her eye fell upon its miserably short little gray tow-linen shirt and noted the contrast between its pauper shabbiness and her own, The unusual spectacle of her busy mother rocking comfortably and reading early in the morning made Jo feel as if some unnatural phenomenon had occurred, for an eclipse, an earthquake, or a. said Good; "the road no doubt ran right over the range and across the desert on the other side, but the sand there has covered it up, and above us it has been obliterated by some, He, along with Carnegie's Lei Duan (a former student from Zhejiang University), Long Cao of Zhejiang University, and Govindasamy Bala of the Indian Institute of Science, set out to compare the effects on the climate of a, The Department of Foreign Affairs (DFA) confirmed on Thursday that it has tracked the Filipino national living near the, Summary: Guatemala City [Guatemala], June 4 (ANI): The death toll in Guatemala's Fuego, When Hawaii's Kilauea volcano began actively spewing lava and poisonous gases in early May, it was only the latest episode in a, A single volcano can change the world's atmosphere, even permanently, depending on the intensity of the, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Volcano eruption in Japan causes flow of ashes, extremely hot gases, Filipino living near Indonesia volcano eruption site safe - DFA, Death toll rises to 25 in Guatemala's volcanic eruption, A single volcano can change world's atmosphere-expert. The Earth’s mantle within the crust is classified into different sections depending on individual seismology. A Pelean eruption is associated with explosive outbursts that generate pyroclastic flows, dense mixtures of hot volcanic fragments and gas described in the section Lava, gas, and other hazards. During a volcanic eruption, lava, tephra (ash, lapilli, volcanic bombs and blocks), and various gases are expelled from a volcanic vent or fissure. An opening or rupture in the earth’s surface through which lava, hot gases, and fragments of rock erupt. Your email address will not be published. eruption. Definition of volcanic adjective in Oxford Advanced Learner's Dictionary. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Volcano Eruption Volcanoes are ruptures in the crust of our planet Earth that allow hot gases, molten lava and some rock fragments to erupt by opening and exposing the magma inside. The eruption also created a large caldera nearly 3 miles (4.5 km) across and a half-mile (nearly 1 km) deep at the mountain's summit. Required fields are marked *. The components within the Earth such as hot lava, rocks, dust when coming out of a volcano in the form of explosion, is known as a volcanic eruption. the "volcanic eruption" family. In this piece of article, we will be discussing how and why volcanoes erupt. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. a bursting forth or out, as of lava from a volcano 2. a throwing forth of lava, water, steam, etc. Noun. The effect of volcanic eruptions on humans is both direct—lava flow, tidal waves, mud slides—and indirect—releasing ash that affects the lungs or weather Several types of volcanic eruptions have been distinguished by volcanologists. Volcano definition is - a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue; also : a hill or mountain composed wholly or in part of the ejected material. 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Volcanoes are described as active (in eruption), dormant (not erupting at the present time), or extinct (having ceased eruption; no longer active). It may be dangerous if vast amounts of rock and volcanic ash start to erupt. Eventually, some magma pushes through fissures and vents in the earth’s surface. Since it is lighter than the solid rock around it, the magma rises and gets collected in magma chambers. It is so hot deep within the earth that some rocks slowly melt and turn into a thick flowing matter known as magma. An explosion can occur from the side branches or the upper part of the volcano. eruption in the Definitions.net dictionary. discharge - the sudden giving off of energy. When it is under the surface, the melted rock is known as magma and erupts as ash when it comes up. The eruption column rose to at least 18 km above sea level where the volcanic ash and gas were blown west to form a fan-shaped eruption cloud. Your email address will not be published. something that is erupted or ejected, as molten rock, volcanic ash, or steam. A smaller eruption cloud (bottom photograph, lower right) was blown northward by lower-level winds. What does volcanic. These are often named after famous volcanoes where … The definitions of volcanic action and volcanic eruption are comparable to the terms as used in standard ISO property policies. The eruption of the Eldgjá in the tenth century is known as a lava flood: a rare type of prolonged volcanic eruption in which huge flows of lava engulf the landscape, accompanied by a haze of sulphurous gases. Plinian eruption - a volcanic eruption in which a stream of gas and ash is violently ejected to a height of several miles. Most volcanic eruptions are caused by tectonic plates moving towards each other, which usually produces violent eruptions. Volcanic eruptions often cause temporary food shortages and volcanic ash landslides called Lahar. All in the same fraction of an instant, earthquake, tidal wave, "I have it!" The volcanic ash and gas injected into the atmosphere obscured the sun and increased the reflectivity of Earth, cooling its surface and causing what's known as the year without a summer. When this type of magma erupts, it flows out of the volcano. The explosivity of an eruption depends on the composition of the magma. These include upper mantle, that ranges between 8 – 35 km to 410 km; transition zone ranges from 400 to 660 km; lower mantle lies between 660 – 2891 km. The most common consequences of this are population movements as large numbers of people are often forced to flee the moving lava flow. eruption definition: 1. an occasion when a volcano explodes, and flames and rocks come out of it; (of a volcano) the act…. Others are slow-flowing fountains of lava, which is hot fluid rock. 1. volcanic eruption - the sudden occurrence of a violent discharge of steam and volcanic material. Information and translations of volcanic. the sudden giving off of energy. Since magma is lighter than surrounding rock, it floats up towards the surface and seeks out cracks and weakness in the mantle. A volcanic eruption occurs when molten rock, ash and steam pour through a vent in the earth's crust. Definition: A volcanic eruption occurs when magma is released from a volcano. a volcanic eruption in which a stream of gas and ash is violently ejected to a height of several miles. The conditions change dramatically from the crust in the mantle location. All Free. Hence, a volcanic eruption occurs and the erupted magma is known as lava. Volcanic eruption means eruption, explosion, or effusion of a volcano.All volcanic eruptions that occur within a 168-hour period shall be considered a single loss. Rocks, lava and ash are built across the volcanic vent with every eruption. volcanic - WordReference English dictionary, questions, discussion and forums. Princeton's WordNet (3.50 / 2 votes)Rate this definition: volcanic eruption, eruption (noun) the sudden occurrence of a violent discharge of steam and volcanic material. The thickness of the crust ranges from 10km to 100km in mountainous locations and mainly consists of silicate rock. In fact, most of the time you'll find the word you are looking for after typing only one or two letters. Learn more. eruption. We need to understand the Earth’s structure to know how volcanoes erupt. How to use volcano in a sentence. Definition and characteristics Volcanic eruptions happen when lava and gas are discharged from a volcanic vent. Learn more. Volcanic eruption -cyclicity is the whole of erupted materials, inside volcanic structures, which are generated during one volcanic activity period, and is generally formed through the erupted volcanic rocks overlaid from several edifices and sedimentary rocks between different volcanic edifices. Some volcanoes explode. Vulcanian Eruption. Health concerns after a volcanic eruption include infectious disease, respiratory illness, burns, injuries from falls, and vehicle accidents related to the slippery, hazy conditions caused by ash. volcanic eruption volcanic eruptions. Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. eruption meaning: 1. an occasion when a volcano explodes, and flames and rocks come out of it; (of a volcano) the act…. Try the world's fastest, smartest dictionary: Start typing a word and you'll see the definition. If magma is thin and runny, gases can escape easily from it. Definition of volcanic. Meaning of volcanic. This viscous and molten rock gets collected into large chambers within the Earth’s crust. At the top lies the lithosphere, being the outermost layer that consists of the upper crust and mantle. 3. The nature of the eruption mainly depends on the viscosity of the magma. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. Also known as the Baitoushan Volcano, the eruption spewed volcanic material as far away as northern Japan, a distance of approximately 750 miles (1,200 kilometers). This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Type of: discharge. Adjective a man with a volcanic temper that could go off at any moment Recent Examples on the Web: Adjective Then there were the volcanic eruption weeks, one of which came in Week 13 against the AFC … eruption mean? It finally explodes from the peak point of a volcano after reaching the surface. A Vulcanian eruption is a short, violent, relatively small explosion of viscous magma (usually andesite, dacite, or rhyolite).This type of eruption results from the fragmentation and explosion of a plug of lava in a volcanic conduit, or from the rupture of … A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a … Volcanic eruptions can be quite calm and effusive, or they can be explosive. Geology. Some volcanic eruptions are explosive and others are not. Volcanic eruptions can result in additional threats to health, such as floods, mudslides, power outages, drinking water contamination, and wildfires. Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. A good example is the eruptions at Hawaii’s volcanoes. Word Family. Pelean eruptions are named for the destructive eruption of Mount … When a volcano erupts, it throws out a lot of hot, melted rock called lava, as well as ash and steam. Effusive eruptions produce lava flows, while explosive eruptions produce ash and pyroclastic density currents. The pressures rise drastically and temperatures rise up to 1000 oC. eruption in the most comprehensive dictionary definitions resource on the web. Unlike most online dictionaries, we want you to find your word's meaning quickly. In this piece of article, we will be discussing how and why volcanoes erupt. A volcanic eruption is an awesome display of Earth’s power. Volcanoes, earthquakes: Is the 'Ring of Fire' alight? The video below will help you clearly understand the process of the volcanic eruption. Volcanoes are ruptures in the crust of our planet Earth that allow hot gases, molten lava and some rock fragments to erupt by opening and exposing the magma inside. 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