comparing volcano eruption to a bursting balloon?
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Its more like filling a plastic bottle with water and squeezing. you get a 'Fountain' of water and then some trickling over the side.
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Here is the USGS list of historic earthquakes. It does include many (probably too many) events since 1980. There are links on the page that will lead to you lists sorted by region, magnitude, etc.:\nhttp://earthquake.usgs.gov/regional/world/historical.php\n\nHere is the list of volcanic eruptions that have had more than 300 casualties. It is a little harder to sort out the most significant volcanic eruptions since we have no scale for comparing them.\nhttp://volcanoes.usgs.gov/Hazards/Effects/Fatalities.html\n\nCORRECTION: THERE IS A SCALE FOR VOLCANIC ERUPTIONS, BUT THOSE ARE NOT CLASSIFIED USING THE VEI SCALE:\nhttp://lvo.wr.usgs.gov/sizes.html\n\nThis site at the Smithsonian Global Volcanism Program is searchable by year, and has links to each significant eruption:\nhttp://www.volcano.si.edu/world/find_eruptions.cfm\n\nI haven't seen this but thought this CD from the Smithsonian looked interesting. It has a global dataset of volcanic eruptions and earthquakes since 1960 (but costs $20).\nhttp://www.volcano.si.edu/info/products/eqerupt/eqerupt.cfm\n\nHere is the USGS list of Historical Landslides starting in 1958 and continuing to date:\nhttp://landslides.usgs.gov/learningeducation/historical.php\n\nHere is a list of major Pacific tsunamis from 1981 to 1997 at the Russian Academy of Science. :\nhttp://omzg.sscc.ru/tsulab/recent.html\nThe site has quite a few other lists of tsunami events grouped by ocean basin.\nhttp://omzg.sscc.ru/tsulab/\n\n\nAnother type of geologic event that is hard to pinpoint because it is a gradual process is subsidence. This is an informative website that lists various types of subsidence and where it is happening:\nhttp://www.earthsci.org/processes/struct/subside/Subsidence.htm
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It WILL erupt again - it's not a matter of IF, but rather When and How Big?  It is being monitored very closely by geophysicists and volcanologists at present.\n\nMost recently the volcano erupted in the 1940s (not that long ago!  It was a minor eruption).  For more information, check out the link below.
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certainly NOT He!\n\nThe main one is water... along with other common volatiles CO2 and Cl.  As these increase, so does explosiveness.\n\nHigher silica lavas are more likely to be explosive.
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INTRODUCTION\nThis project culminates my undergraduate studies at Keene State College as a Geochemistry/Spanish major. I decided to do this research with the intention of learning about the potential hazards involved in living in a volcanically active area, mainly in Quito, Ecuador where I spent the summer of 1995 in with my grilfriends' family, whom without their support and helpfulness, this could not have even been thought about! I was so amazed to wake up daily and look out the window to the south and be awe-stricken by the immensity and beauty of the snow-capped volcano Cotopaxi. Naturally, the first part of the paper describes the geomorphology and volcanic hazards near Cotopaxi as relevant to the development of volcanic hazard maps (see figure 1 (315 K), Figure 2 (99K), for example shows the areas where volcanic ash will fall.\n\nIn my research, I've looked at three main issues that are important for the understanding the methodology used in trying to interpret and make predictions based upon the known systems of a volcano. I've looked into great detail for the many methods that exist for making predictions for possible future use in volcanic predictions. Included are some samples collected in August, 1995 at Mount Cotopaxi, located at 78¡26' west longitude and 00¡41' south latitude. With these rudimentary samples, I started to realize the importance that these andesites have. Shown in this paper are hazard zonation maps which were made prior to the explosions of Mount Saint Helen's in Washington state and complement the maps made for Mount Saint Helen's. These maps have predictions on them showing possible future volcanic events. They are based on the volcano's past history, as can be seen with the eruptive history of Cotopaxi in Table 1, an analysis of some of the deposits located around the volcano in figure 3 (148K). Further attention is spent on other methods of analyzing the hazards, but based on shorter term, such as analysis of gases expelled, earthquake activity, and changes in the relative shape of the volcano. \n\nThis analysis of some of the volcanic deposits used in determining the eruption history of certain volcanoes worldwide, with particular attention paid to Mount Cotopaxi for the purpose of making predictions about future eruption events and for future benchmark studies for hazard mitigation in volcanically active areas of the world. The study of volcanic mineral spring waters and a general comparison between other non-volcanic waters will aid in learning about the influence of the volcanic system. A comparison between the chemical variations of some volcanic mineral waters and some non-volcanic spring fed waters is also made \n\nCotopaxi is a volcano located about 50 km south of Quito, Ecuador. At 5,897 metres it is the second highest in the country—the highest being the Chimborazo. Cotopaxi is technically referred to as a stratovolcano. It has a height of more than 3,000 metres when measured from its base, which has a width about 23 km. It has one of the only equatorial glaciers.\n\nOccasional claims that Cotopaxi is the highest active volcano in the world are known to be incorrect. Llullaillaco volcano is considerably higher and is definitely in an active phase, having erupted as recently as 1877. Ojos del Salado is higher still, and there are indications near its summit of recent activity, although its remoteness precludes a definitive statement as to whether it is currently active.\n\nThere have been more than 50 eruptions of Cotopaxi since 1738. Numerous valleys formed by powerful lahars (mudflows) surround the volcano. This poses a high risk to the local population, their settlements and fields. The city Latacunga has been completely destroyed at least twice in its history. Cotopaxi's most violent eruptions in historical times occurred in the years 1744, 1768, and 1877. In the 1877 eruption pyroclastic flows descended all sides of the mountain, with lahar
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Supervolcanoes are volcanic eruptions where more than 1000 cubic kilometers of material is extruded. As a comparison, the Mount Helens eruption amounted to 2.3 cubic kms.\n\nThe following locations are known to be supervolcanoes:\n\n- Lake Toba, Sumatra, Indonesia - 75,000 years ago (2,800 km³)\n- Yellowstone, United States - 2.2 million years ago (2500 km³) and 640,000 years ago (1000 km³)\n-La Garita Caldera, Colorado, United States - 27.8 million years ago (over 5,000 km³)\n-Bruneau-Jarbidge, Idaho, United States - 10-12 million years ago (responsible for the Ashfall Fossil Beds 1600 km to the east)
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I have got some sites for science projects on volcanoes.\n\nhttp://www.all-science-fair-projects.com/project815_39.html\n\nThis is another project for making a volcano with a purchased kit.\n\nhttp://www.hobbytron.com/make-volcano-model-science-project-experiment.html\n\nThis is another volcano science project.\n\nhttp://www.scienceproject.com/projects/intro/primary/PX001.asp
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4. D\nThe most explosive volcanoes are those containing a lot of silica.  The shape of the silca molecule is a bit like a pyramid which means that cannot move past each other very easily.  This makes them very viscous and so it takes much more energy to get it to move and the energy comes out in a single event.\n\n12. B\nIt's the difference between min and max.
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Eruptions! Earthquakes!  The cool exciting stuff!  What did you want to know about it?
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Think of a helium balloon.
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Disadvantages: destruction during eruptions,  magma flowing and ash clouds destoys everything on its way, earthquakes are frequent near active volcanoes.\n\nAdvantages: Volcanoes during eruptions throw out materials containing lots of minerals that turn into very fertile soils. After an eruption the land turns to be excellent for agriculture for many years. For example Greek and Roman civilizations settled on the fertile volcanic soils in the Mediterranean-Aegean region.
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The first site below has a good simple explanation of earthquakes and volcanoes.  The second site focuses on recent earthquakes and volcanoes around the world.\nMy favorite video on Volcanoes is from the Eyewitness video series... great photography  and fast moving.  You might be able to find it in a video rental store or the library.  I'm not sure what you needed to know about this subject, so here is a variety.  Hope one of them helps.
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There are explosions in and on the surface of the sun, but as for volcanoes like here on earth no there are none. Since the surface of the sun is molten (which means not solid) there are no mountains on the sun.
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Pressure release of molten lava, such as a volcanic eruption.
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Several things happen when a volcano is about to erupt, some of the most obvious are: \n\n1.The number and size of earthquakes increase in and around the volcano. \n\n2.The ground deforms or "bulges" at the eruption site. \n\n3.A lot more gas comes out of the volcano.
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There is a website on how to make a volcano model below
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I saw a documentary about the volcano Krakatoa on Sumatra in the 1800's as producing the loudest sound ever made.  Do some follow-up research to verify this.  I don't know how you could reproduce it though, perhaps when it blows again you could have a take recorder running!