What techtonic plates were involved in Mount Tambora's eruption?
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Scientists excavating at the site of the world's biggest recorded volcanic eruption on an Indonesian island have found human remains and artifacts in an area they said may be the ``Pompeii of the east.''\n\nThe discoveries were made near Tambora, on Sumbawa Island, which erupted in 1815. The volcano produced 150 cubic kilometers of ash that fell as far as 1,300 kilometers (800 miles) away. Tambora lies about 1,300 kilometers to the east of Indonesia's capital, Jakarta.\n\n``There is a potential that Tambora could be the Pompeii of the east and it could be of great cultural interest,'' Haraldur Sigurdsson of the University of Rhode Island, who led the excavation, said in a statement published on the university's Web site. ``All the people, their houses and culture are still encapsulated there as they were in 1815.''\n\nThe archeological dig led to the discovery of two human bodies, ceramic pots and artifacts linking Tamboran culture to that of Vietnam and Cambodia. The eruption of Mount Vesuvius in Italy in 79 AD covered the cities of Pompeii and Herculaneum in layers of ash. Pompeii was discovered in 1748 with buildings and artifacts intact. The discovery gave insight to historians about ancient Roman life.\n\n``If it's true that they found such remains, it will reveal the culture at that time,'' said Atje Purbawinata, head of volcano monitoring and research at the Volcanological Survey of Indonesia. ``A generation of local people might have been lost due to the eruption. Now it could be revealed what happened.'' \n\nThe expedition involved teams from the University of Rhode Island and the University of North Carolina, the statement said. They spent six weeks in the island in 2004.\n\nStill, the team didn't seek permission from the Indonesian Institute of Science, said Neni Sintawardani, department head in charge of issuing research clearance at the agency.\n\nIgan Sutawidjaya, a senior researcher at the Volcanological Survey of Indonesia, a member of the team to Tambora, said they obtained permission from Indonesia's immigration department and the foreign ministry. He didn't know if the science agency needed to approve the trip.\n\n``In granting a clearance, we always require them to cooperate with a qualified Indonesian so we can share knowledge,'' Sintawardani said.\n\nSome Indonesian archeologists said the evidence of Khmer culture among the ruins could have been because of trade.\n\n``The ceramic pots and other household materials found might be goods that the people of Tambora traded overseas, the Mon- Khmer culture has actually never been found across Indonesia,'' said Bagyo Prasetyo, an archeologist with the Center of Archeological Research in Jakarta. ``We also need to know if the team did carbon dating.''\n\nVolcanic Explosivity Index\n\nTambora's eruption was rated 7 according to the Volcanic Explosivity Index, which measures the height of the eruption and the amount of ash ejected, according to the Volcano World Web site hosted at the University of North Dakota, making it the biggest recorded eruption. Mount Toba in Sumatra Island, which erupted 76,000 years ago, had a Volcanic Explosivity Index of 8.\n\nTambora's eruption killed about 10,000 people because of the pyroclastic flows, while an estimated 82,000 died after the eruption because of disease and hunger. The year 1815 is also known as the ``year without a summer,'' because gases released by Tambora resulted in a global cooling and led to food shortages in Europe.\n\n``The findings were remarkable,'' said Sutawidjaya of the Volcanological Survey. A team from the agency will visit the area again in April to continue its research, he said.\n\nPumice, Ash\n\nThe Tambora discovery was made after cutting through a 10- foot thick deposit of pumice and ash, the statement said. The area may also have a wooden palace. Sigurdsson and his team plan to ret
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The USGS has diagrams of earthquake faults and what they look like during a quake.\n\nThe National Park Service has a good map of the various plates that make up the Earth's crust.
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Plates are solid pieces of the Earth's crust that float and move around on top of the liquid interior of the earth.  Anyway when two plates are pushing against each other, pressure builds up until they move suddenly and you get an earthquake.  Volcano's form because the friction created when two plates rub against each other can be hot enough to melt rock.  And when that molten rock rises to the surface on plate boundaries, you get volcanos.
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earthquakes ... \nseismic activity ... \n\nand these happen when PLATES move! It's not movement in the rocks that causes earthquakes.  And the dynamics of plate movement is called "plate tectonics".\n\nMoreover, plate tectonics include volcanic behaviour, continental drift, and mountains (making, destrucion, etc)\n\nBut then again, I really don't know what you're trying to ask!
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Occurrence\n\nVolcanoes are found in association with midocean ridge systems (see seafloor spreading) and along convergent plate boundaries, such as around the Pacific Ocean's “Ring of Fire” (see plate tectonics), the ring of plate boundaries associated with volcanic island arcs and ocean trenches surrounding the Pacific Ocean. Continental volcanoes are also associated with converging plate boundaries, such as the volcanoes of the Cascade Range along the W coast of the United States. Isolated volcanoes also form in the midocean area of the Pacific apparently unrelated to crustal plate boundaries. These sea mounts and volcanic island chains, such as the Hawaiian chain, may form from rising magma regions called hot spots.
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vally, ridge fault, volcanoes
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The structural integridy of the plate itself prevents this. When the earth cooled down after its formation the plates were created like large crystals on the molten surface. They can slowly shift around as a result of the magma currents but to have them break would require a large catastrophic event like a meteor or the earth heating up to levels hot enough to lower their integridy. This of course would be a lethal level and would only occur if, for example, the earth got really close to the sun.\n\nThere is the remote chance that an earthquake at just the right fault line might cause just the right fracture that could move through an entire continent but the probability is very remote.
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http://www.fs.fed.us/gpnf/volcanocams/msh/
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I couldn't find an exact number, but the source below gives an approximate number of total volcanoes, and the second source gives a breakdown by type of plate boundary.  Most of the eruptions have been for subduction, which means that a lot of volcanoes, at least the active ones, are composites.  My personal guess is that there are about 400 composites worldwide, the majority in the Ring of Fire.
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The tectonic plates are "floating" on a liqid mantle that has convection currents.  These convection move the plates around the globe.  This is the science behing plate tectonics
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the upper mantle.\n\nSee all layers at http://en.wikipedia.org/wiki/Mantle_(geology)
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The website below will take you to a well-illustrated USGS pub on plate tectonics. It is called: This Dynamic Earth--the story of plate tectonics. By Kious and Tilling.\nBecause it is a government publication, it isn't copyrighted, but you should give appropriate credit if you reuse the figures, etc.\n\nVolcanoes are not randomly distributed over the Earth's surface. Most are concentrated on the edges of continents, along island chains, or beneath the sea forming long mountain ranges. More than half of the world's active volcanoes above sea level encircle the Pacific Ocean to form the circum-Pacific "Ring of Fire." In the past 25 years, scientists have developed a theory -- called plate tectonics -- that explains the locations of volcanoes and their relationship to other large-scale geologic features.-From: Brantley, 1994, Volcanoes of the United States: USGS General Interest Publication.   \nThe ring of fire is associated with convergent plate boundaries.
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Go to wikipedia.com and search for Mount Vesuvius. You should find what you need.
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check these out:\n\nhttp://www.volcanolive.com/caribbean.html\n\nhttp://www.caribbeanvolcanoes.com/\n\nhttp://www.theoceanadventure.com/CS2000/CS4.html\n\nhttp://en.wikipedia.org/wiki/Caribbean_Plate
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(m)\n\nAustralian and American researchers investigating forces exerted on the Indo-Australian tectonic plate have discovered that the considerable stresses being exerted on the plate could be leading to its breaking up.\n\nARC Professorial Fellow, Mike Sandiford, from the University of Melbourne’s School of Earth Sciences was recently awarded ARC funding for research aimed at understanding the forces that drive the motion of the Earth’s tectonic plates and the distribution of stresses in the Earth’s crust that give rise to great earthquakes such as the magnitude 9 Boxing Day Sumatran quake.\n\nProfessor Sandiford says the research shows that as much as 10 per cent of the huge amounts of energy being created at plate connection points at Sumatra and Java are being transferred back into our plate and causing major stresses.\n\n“This is enough stress to contribute to mild earthquake activity in the central regions of the plate, such as in the Australian continent or central Indian Ocean, and provides us with clues as to why our plate has been slowly breaking up,” he says.\n\n“The Indian Ocean quakes are, in effect, leading to the active rupture of the Indo-Australian plate into separate Indian and Australian plates. This new research provides us with important information about the stresses that are driving this drawn out tectonic plate divorce.”\n\nThe research, which was conducted in collaboration with Wouter Pieter Schellart of the Australian National University and David Coblentz of the Los Alamos National Laboratory in the US, will be published in the journal Geology (27 January).\n\nThe research is also important for understanding why smaller intra-plate earthquakes such as the 1989 Newcastle quake, which occurred nowhere near the edge of the plate, take place. Up to now, why earthquakes occur in apparently safe zones in the centre of plates has not been very well understood.\n\nProfessor Sandiford says, “Earthquakes such as the 1989 Newcastle quake that killed 13 people and caused more than $1 billion in damages are just one manifestation of mild tectonic activity that has been affecting the Australian continent for the last 5-10 million years.”\n\nThe new research shows that stresses originating at points of collision between two plates are being dissipated back into our plate and generating enormous internal stresses.\n\nThe ARC funded project will map the spatial and temporal pattern of this tectonic activity and relate it to the factors that drive the motion of the Indo-Australian plate.\n\n“This research will contribute to our understanding of the factors that drive plate motion, to earthquake risk assessment in Australia and other comparatively stable continental regions, and to the factors that have shaped our distinctive Australian landscapes,” he says.\n\nBACKGROUND INFORMATION\n\nWhat causes tectonic plates to move?\nThe Earth is made up of a series of layers. The outermost layer is called the crust and the innermost is the core. In between lies an area called the mantle (in turn made up of upper and lower mantle), which is arguably the most important when it comes to understanding where big earthquakes occur.\n\nThe outer part of the Earth, comprising the crust and top 100 or so kilometres of the mantle (together called the lithosphere), consists of a collection of eight major plates which almost fit perfectly together. The continents and oceans all lie on these plates, the major ones referred to as the African, Eurasian, Indo-Australian, Antarctic, Philippine, Pacific, Nazca, North American and South American, depending on their geographic location.\n\nThese plates (also referred to as tectonic plates) float on the softer mantle underneath. Convection currents within the upper mantle layer are a major driving force driving plate motion and therefore behind earthquake activity.\n\nThe lower sections of the mantle closest to the molten core of the earth are also the hottest parts of this la
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I assume you mean techtonic plate. In that case, all of California, basically - San Francisco mainly.
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Mt Tarawera (check your spelling) lies between the Mayor Island Fault Belt and the North Island Shear Belt. This fault system are fractures along the subduction zone formed by the Pacific Tectonic Plate and the continental crust upon which New Zealand is located. The subduction of the Pacific Plate with the continental crust generates the heat required for volcanic magma to form, and the two fault zones provide that heated material access to the surface.