Is Mt. Vesuvius an active volcano?
82892
Yes, it is the only active volcano on the European mainland. It's most recent eruptions were in the period from 1913 to 1944.
344523
Well, yeah, there is a relationship.  Most of our recent volcanoes occur near the boundaries of plates.  At mid-ocean ridges hot magma is welling up and cooling to make the plates on either side larger.  Iceland, with its many volcanoes, is on the Mid-Atlantic Ridge.  Where oceanic plates are pushed under other plates (subducted), they are forced deeper into earth where it's hotter, and the subducted plate tends to melt.  The lighter parts of the melt try to work their way toward the surface (because they're less dense, and, hence buoyant), and cause volcanoes such as those of the Pacific's Ring of Fire--Indonesian volcanoes, Japanese volcanoes such as Mount Fuji, Alaska's volcanoes, the Cascade Range in Washington State, and so on.\n\nSome volcanoes are associated with "hot spots", where a plume of magma flows toward the surface, but is not associated with a plate boundary.  The Hawaiian Islands are an example of such a hot spot.  Plate tectonics also affect things here.  The plate moves over the hot spot, continually making new islands.  The newest one hasn't reached the surface yet.  Hawai'i is the newest one that's above the surface, and as you move north and west along the Hawai'ian Archipelago, the islands are progressively older and, because they've had more time to be eroded, smaller.  Northwest of the archipelago are the Emperor Seamounts, islands that were eroded until they no longer reach the ocean's surface.
904334
A dormant volcano no longer erupts regularly but has lava in the batholith and is capable of erupting.  An extinct volcano contains no magma and the batholith has hardened.  It cannot erupt.
498007
Mauna Kea, a dormant volcano, is one of the highest island mountains in the world. Its is located on the main island of Hawaii along with its slightly smaller neighboring mountain, Mauna Loa (13,667 ft.). If Mauna Kea's height is measured from its base (18,000 feet below sea level), it surpasses even Mount Everest, and is the world's highest mountain (31,796 ft.). Although there is no historical record of Mauna Kea's eruption, geologic evidence suggests that the volcano last erupted around 1650, and eruptions are present in traditional Hawaiian folklore. According to legend, Mauna Kea and Mauna Loa were the domains of two opposing goddesses, Poliahu and Pele respectively. Earthquakes and volcanic eruptions were produced from their violent rivalry.\n\n\n------------------\n\nRising gradually to more than 4 km above sea level, Mauna Loa is the largest volcano on our planet. Its long submarine flanks descend to the sea floor an additional 5 km, and the sea floor in turn is depressed by Mauna Loa's great mass another 8 km. This makes the volcano's summit about 17 km (56,000 ft) above its base! The enormous volcano covers half of the Island of Hawai`i and by itself amounts to about 85 percent of all the other Hawaiian Islands combined.
882033
Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 96 miles (154 km) south of the city of Seattle and 53 miles (85 km) northeast of Portland, Oregon. The mountain, part of the Cascade Range, takes its English name from the British diplomat Lord St Helens, who was a friend of George Vancouver, an explorer who made a survey of the area in the late 18th century. Mount St. Helens is a part of the Pacific Ring of Fire that includes over 160 active volcanoes. This volcano is well known for its ash explosions and pyroclastic flows.-
698243
Below are the most active volcanoes in order of how long that have been active.\nEtna Italy 3500 years \nStromboli Italy 2000 years \nYasur Vanuatu 800 years \nAmbrym Vanuatu 1935- \nTinakula Solomon Islands 1951?- \nErta Ale Ethiopia 1967- \nManam Papua New Guinea 1974- \nLangila Papua New Guinea 1960- \nBagana Papua New Guinea 1972- \nSemeru Indonesia 1967- \nMerapi Indonesia 1967- \nDukono Indonesia 1933- \nSakura-jima Japan 1955- \nSuwanose-jima Japan 1949- \nSanta Maria Guatemala 1922- \nPacaya Guatemala 1965- \nArenal Costa Rica 1968- \nSangay Ecuador 1934- \nErebus Antarctica 1972- \nPiton de la Fournaise Reunion 1920- \nKilauea Hawaii 1983- \n\nThe following 4 volcanoes emit the most lava. \nKilauea (Hawaii) \nMt Etna (Italy) \nPiton de la Fournaise, (Réunion) \nNyamuragira, (D.R. Congo) \n\nThis website also looks to have a lot of information on the most active volcanoes in the world. It breaks them down by continent.\nhttp://www.volcanodiscovery.com/volcano-tours/558.html
68090
Depends on which eruption you're talking about. \nThe most famous eruption, which covered Pompeii in 79 A.D., deposited ash in a 186 square mile radius. \n\nFrom Wikipedia's entry on Vesuvius:\nVesuvius has erupted repeatedly in recorded history, most famously in 79 and subsequently in 472, 512, in 1631, six times in the 18th century, eight times in the 19th century (notably in 1872), and in 1906, 1929, and 1944. There has been no eruption since then. The eruptions vary greatly in severity but are characterised by explosive outbursts of the kind dubbed Plinian after the Roman writer who observed the AD 79 eruption. On occasion, the eruptions have been so large that the whole of southern Europe has been blanketed by ashes; in 472 and 1631, Vesuvian ashes fell on Constantinople (now known as Istanbul), over 1,000 miles away. The volcano has been quiescent since 1944.
810857
Italy has mostly stravolcanoes (or composite volcanoes). You can reed all about volcanos in Italy at these pages:\n\nhttp://www.volcano.si.edu/world/region.cfm?rnum=0101\nhttp://vulcan.wr.usgs.gov/Volcanoes/Italy/framework.html
1162848
That depends on your definition.\n\nThe Etna, in Sicily, which has been erupting for 3,500 years, is considered to be the most active volcano in the world.\n\nThe following 4 volcanoes emit the most lava: Kilauea (Hawaii), Mt Etna (Italy), Piton de la Fournaise, (Réunion), Nyamuragira, (D.R. Congo)\n\nHere is a list of volcanoes that have been in continuous eruption for decades:\nhttp://www.volcanolive.com/active2.html
844151
I can see Mt. Hood out my window and I haven"t heard of any explosions. We keep a close watch on our volcanoes around here since Mt St. Helens erupted 25 years ago. Mt. Hood will erupt again in the future but hasn't since 1781. Check the link below.
717408
Usually there are warning signs that something is happening. Active volcanos such as Mt St Helens are continusly monitored for changes such as increase in earthquake activity, change in the shape of the volcano. Scientists can actually see changes to the shapre of hte volcano by GPS surveys. Like what is happening in the Pacific at teh moment (cant remember the name of the volcano just now) they know something is going to happen, but they cant place a time on it, so they have evacuated hte people. Most people are evacuated before hte volcano blows, but those that have ignored pleas do so at they're own risk. And yes as the dude above me pointed out, by means of a road.
133523
http://www.fs.fed.us/gpnf/volcanocams/msh/images/mshvolcanocam.jpg\nits usualy a cloudy day
171048
A volcano is a geological landform (usually a mountain) where a substance, usually magma (rock of the Earth's interior made molten or liquid by extremely high temperatures along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of a planet. Although there are numerous volcanoes (some very active) on the solar system's rocky planets and moons, on Earth at least, this phenomenon tends to occur near the boundaries of the continental plates. However, important exceptions exist in hotspot volcanoes.\n\n \nSmoking Bromo and Semeru volcanoes on Java in Indonesia.The name "volcano" originates from the name of Vulcan, a god of fire in Roman mythology. The study of volcanoes is called vulcanology (or volcanology in some spellings).\n\nMud volcanoes are formations which are often not associated with known magmatic activity. Active mud volcanoes tend to involve temperatures much lower than those of igneous volcanoes, except when a mud volcano is actually a vent of an igneous volcano. This article describes igneous volcanoes.\nhttp://en.wikipedia.org/wiki/Volcano\n\nTo learn more and see images click here\nhttp://volcano.und.edu/volcanoes.html
574830
Here you go:\n\nhttp://volcano.und.edu/vwdocs/msh/
566779
Depends on what criteria you set, but the Deccan Traps in India 60- to 65Ma ago was very large. It was classed as a supervolcano much like the one in Yellowstone park at the moment. \nAlthough some people claim that the formation of Yellowstones caldera around 2 million years ago was the largest volcanic eruption ever.
133677
This question, as worded, could yield multiple answers.\n\nVesuvius, as an example, has erupted more than 50 times since 79 AD.  This, technically, fits within the parameters of the question.
108211
Mt. Everest is not a volcano.\n\nAs for an explanation, well, it is just not.  It doesn't spew lava, it has never spewed lava, and it is not ever expected to spew lava.