List Of Known Large Volcanic Eruptions
This is a sortable list of large eruptions that occurred between 11.7 Ka and 450+ Ma. Uncertainties as to dates and tephra volumes are not restated, and references are not repeated. The inclusion criteria here only covers entries with a Volcanic explosivity index (VEI) of 5 or greater. The given values for events in the Miocene epoch sometimes lack references, and are given as VEI-equivalent, as an estimate of the erupted tephra volume. <11.7KA () 11.7 to 49KA 50 to 99KA 100 to 299KA 300 to 999KA 1 to 9.9MA 10MA and older Notes See also *Geologic t ...
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Tonga Volcano Eruption 2022-01-15 0320Z To 0610Z Himawari-8 Visible
Tonga, officially the Kingdom of Tonga, is an island country in Polynesia, part of Oceania. The country has List of islands and towns in Tonga, 171 islands, of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. according to Johnson's Tribune, Tonga has a population of 104,494, 70% of whom reside on the main island, Tongatapu. The country stretches approximately north-south. It is surrounded by Fiji and Wallis and Futuna (France) to the northwest, Samoa to the northeast, New Caledonia (France) and Vanuatu to the west, Niue (the nearest foreign territory) to the east and Kermadec Islands, Kermadec (New Zealand) to the southwest. Tonga is about from New Zealand's North Island. Tonga was first inhabited roughly 2,500 years ago by the Lapita culture, Lapita civilization, Polynesian settlers who gradually evolved a distinct and strong ethnic identity, Tongan language, language, and culture as the Tongans, Tongan people. They ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Nigorigawa
Nigorigawa Caldera ( Japanese: 濁川カルデラ, ''Nigorigawa karudera'') is a volcanic crater in Oshima, Hokkaido, Japan. It has an elevation of 1,168 ft (356m) and it last erupted 12,000 years ago. The caldera has a diameter of 3km. A town of the same name is located at the caldera. East of Nigorigawa is the town of Mori Mori is a Japanese and Italian surname. It is also the name of two clans in Japan, and one clan in India. Italian surname * Camilo Mori, Chilean painter * Cesare Mori, Italian "Iron Prefect" * Claudia Mori, Italian actress, singer, televisio ... and an active volcano known as Koma-ga-take. References {{Hokkaido-geo-stub Calderas of Hokkaido Volcanoes of Hokkaido Volcanic craters Pleistocene calderas ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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South Aegean Volcanic Arc
The South Aegean Volcanic Arc is a volcanic arc in the South Aegean Sea formed by plate tectonics. The prior cause was the subduction of the African plate beneath the Eurasian plate, raising the Aegean arc across what is now the North Aegean Sea. In the Holocene, the process of back-arc extension began, probably stimulated by pressure from the Arabian plate compressing the region behind the arc. The extension deformed the region into its current configuration. First, the arc moved to the south and assumed its arcuate configuration. Second, the Aegean Sea opened behind the arc because the crust was thinned and weakened there. Third, magma broke through the thinned crust to form a second arc composed of a volcanic chain. And finally, the Aegean Sea plate broke away from Eurasia in the new fault zone to the north. The extension is still ongoing. The current southern Aegean is one of the most rapidly deforming regions of the Himalayan-Alpine mountain belt. It is approximately 45 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Santorini
Santorini (, ), officially Thira (, ) or Thera, is a Greek island in the southern Aegean Sea, about southeast from the mainland. It is the largest island of a small, circular archipelago formed by the Santorini caldera. It is the southernmost member of the Cyclades group of islands, with an area of approximately and a 2021 census population of 15,480. The municipality of Santorini includes the inhabited islands of Santorini and Therasia, and the uninhabited islands of Nea Kameni, Palaia Kameni, Aspronisi, Anydros, and Christiana. The total land area is . Santorini is part of the Thira regional unit. It is the most active volcanic centre in the South Aegean Volcanic Arc. The volcanic arc is approximately long and wide. The region first became volcanically active around 3–4 million years ago, though volcanism on Thera began around 2 million years ago with the extrusion of dacitic lavas from vents around Akrotiri. One of the largest volcanic eruptions in reco ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Cape Riva Caldera
A cape is a clothing accessory or a sleeveless outer garment of any length that hangs loosely and connects either at the neck or shoulders. They usually cover the back, shoulders, and arms. They come in a variety of styles and have been used throughout history for many different reasons. Semantic distinction In fashion, the word "cape" usually refers to a shorter garment and "cloak" to a full-length version of the different types of garment, though the two terms are sometimes used synonymously for full-length coverings. A shoulder cape is thus sometimes called a "capelet". The fashion cape does not cover the front to any appreciable degree. In raingear, a cape is usually a long and roomy protective garment worn to keep one dry in the rain. History The first known usage of capes is unknown, but some early references we know of are from Ancient Roman military uniforms. Later on, capes were common in medieval Europe, especially when combined with a hood in the chaperon. They ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Rabaul Caldera
The Rabaul caldera, or Rabaul Volcano, is a large volcano on the tip of the Gazelle Peninsula in East New Britain, Papua New Guinea, and derives its name from the town of Rabaul inside the caldera. The caldera has many sub-vents, Tavurvur being the most well known for its devastating eruptions over Rabaul. The outer flanks of the highest peak, a 688-metre-high asymmetrical pyroclastic shield, are formed by thick pyroclastic flow deposits. There is no sign of a pyroclastic shield along the rim of the caldera, making the location likely underwater, on the caldera's floor. Tavurvur, a stratovolcano and a sub-vent of the caldera, is the most visibly active, continuously throwing ash. In 1994 it, and nearby Vulcan, erupted and devastated Rabaul; however, due to planning for such a catastrophe, the townsfolk were prepared and only five people were killed. One of the deaths was caused by lightning, a feature of volcanic ash clouds. In 1937, Vulcan and Tavurvur erupted simultaneously, ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kuril Islands
The Kuril Islands or Kurile Islands are a volcanic archipelago administered as part of Sakhalin Oblast in the Russian Far East. The islands stretch approximately northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia, separating the Sea of Okhotsk from the north Pacific Ocean. There are 56 islands and many minor islets. The Kuril Islands consist of the Greater Kuril Chain and, at the southwest end, the parallel Lesser Kuril Chain. The group termed the 'South Kurils' consists of those of the Lesser Kuril Chain together with Kunashir and Iturup in the Greater Kuril Chain. The Vries Strait between Iturup and Urup forms the Miyabe Line dividing the North and South Kurils. The Kuril Islands cover an area of around , with a population of roughly 20,000. The islands have been under Russian administration since their Invasion of the Kuril Islands, 1945 invasion by the Soviet Union near the end of World War II. Japan claims the four southernmost islands, including two of the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Simushir
Simushir (, , ), meaning ''Large Island'' in Ainu, is an uninhabited volcanic island near the center of the Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean. It was formerly known as Marikan. History Simushir was inhabited by the Ainu. The island appears on an official map showing the territories of Matsumae Domain, a feudal domain of Edo period Japan dated 1644, and these holdings were officially confirmed by the Tokugawa shogunate in 1715. Russian explorer Gerasim Izmailov was marooned on Simushir in the early 1770s. He spent a full year subsisting on "scallops, grass, and roots".. Sovereignty initially passed to Russia under the terms of the Treaty of Shimoda, but was returned to the Empire of Japan per the Treaty of Saint Petersburg, along with the rest of the Kuril islands. The island was formerly administered as part of Shimushiru District of Nemuro Subprefecture of Hokkaidō. Settlers on the island were engaged in fishing, and the raising ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Zavaritzki Caldera
Caldera (, ), also spelled "" and "", is a caldera system located in the centre of Simushir island, in the central Kuril Islands, Russia. The volcano is named after , a scientist of the Academy of Sciences of the Soviet Union. Geology The Zavaritski volcano contains three nested calderas, measuring , and in diameter. The youngest caldera, which is partially filled by Lake , was formed during the Holocene and features several young volcanic cones and lava domes. The lake surface sits at an elevation of above sea level, with the lake bottom at ''below'' sea level. Lake sediments overlying pumice deposits indicate that a previous caldera lake surface existed above sea level. The last reported explosive eruption was recorded in November 1957. This destroyed a diameter cone that reportedly grew pre-eruption and had formed a peninsula extending into the lake from the northeast caldera wall. The eruption filled the northwest section of the lake, including the emplacement of a ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Green Pumice
Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red was ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kamchatka
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 Russia, 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 Avac ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Maly Semyachik
Maly Semyachik () is a stratovolcano located in the eastern part of Kamchatka Peninsula, Russia. It is a compound stratovolcano located in a 10-km-wide caldera within the 15x20 km mid-Pleistocene Stena-Soboliny caldera. Three overlapping stratovolcanoes were constructed sequentially along a NE-SW line, with the youngest cone, Tseno-Semyachik, at the southwest end. A hot, acidic crater lake Crater Lake ( Klamath: ) is a volcanic crater lake in south-central Oregon in the Western United States. It is the main feature of Crater Lake National Park and is a tourist attraction for its deep blue color and water clarity. T ... fills the historically active Troitsky Crater, which formed during a large explosive eruption of Ceno-Semiachik about 400 years ago. The water in the lake has an unusual bright turquoise color. It's because the waters of the lake are poisonous due to the content of several types of acids and other chemical compounds of the periodic tabl ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |