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Well, the magma reservoir or chamber beneath every volcano gets it's fuel from the Earth's mantle (a layer of seething magma). So every time a volcano erupts, emptying or lowering the level of magma in the chamber, some magma from the mantle will rise (over time) to fill the gap.
What else can I help you with?
How do shield volcanoes compare to volcanoes on venus?
Shield volcanoes on Earth are typically larger and have a gentler slope than the volcanoes on Venus. Volcanoes on Venus tend to be more steep-sided and exhibit a greater diversity in shape and size. Additionally, the lava on Venus is generally more viscous than on Earth, leading to different eruption styles.
Why do some volcanoes erupt ash and others lava?
The style of the volcanic eruption is very dependent on the amount of dissolved gas that is in the magma (liquid rock below the surface). If there is a high gas content the volcanic eruption will be explosive and create a log of ash. If the gas content is low the eruption produces more lava flows. An example of a high gas content eruption was the last major eruption of Mt. St. Helens in 1980. An example of a low gas content eruption would be the Hawaiian volcanoes.
How is the distribution of super volcanoes different to that of a typical volcano?
Super volcanoes are much rarer and occur at subduction zones or hotspots, while typical volcanoes are more common and found at convergent or divergent plate boundaries. Super volcanoes have the potential to release extremely large volumes of magma and ash during an eruption, on a scale much greater than typical volcanoes.
How tall can dome volcanoes get?
Dome volcanoes can vary in height, but typically they are shorter and more broad compared to other types of volcanoes. They can range from meters to hundreds of meters tall, depending on the amount of erupted lava and the duration of the eruption.
What is the sheild volcano eruption like?
Shield volcanoes are the more quiescent, lumbering giants of the volcano world. Although these types of volcanoes are not small by any means, the eruptions they produce can be pretty "ho hum" compared to the enormous explosive potential of the Extreme Volcanoes.
Why can volcanoes sometimes have more than one type of eruption?
sometimes the first eruption causes new side vents to open up. Because of this, the second eruption could be more powerful and deadly-pliniann eruption
How do shield volcanoes compare to volcanoes on venus?
Shield volcanoes on Earth are typically larger and have a gentler slope than the volcanoes on Venus. Volcanoes on Venus tend to be more steep-sided and exhibit a greater diversity in shape and size. Additionally, the lava on Venus is generally more viscous than on Earth, leading to different eruption styles.
Why do some volcanoes erupt ash and others lava?
The style of the volcanic eruption is very dependent on the amount of dissolved gas that is in the magma (liquid rock below the surface). If there is a high gas content the volcanic eruption will be explosive and create a log of ash. If the gas content is low the eruption produces more lava flows. An example of a high gas content eruption was the last major eruption of Mt. St. Helens in 1980. An example of a low gas content eruption would be the Hawaiian volcanoes.
How is the distribution of super volcanoes different to that of a typical volcano?
Super volcanoes are much rarer and occur at subduction zones or hotspots, while typical volcanoes are more common and found at convergent or divergent plate boundaries. Super volcanoes have the potential to release extremely large volumes of magma and ash during an eruption, on a scale much greater than typical volcanoes.
How many vocanoes are on underwater?
There are more then 8,000 underwater volcanoes. America had the most biggest eruption worldwide by 5 metres down by sea.
How tall can dome volcanoes get?
Dome volcanoes can vary in height, but typically they are shorter and more broad compared to other types of volcanoes. They can range from meters to hundreds of meters tall, depending on the amount of erupted lava and the duration of the eruption.
What is the sheild volcano eruption like?
Shield volcanoes are the more quiescent, lumbering giants of the volcano world. Although these types of volcanoes are not small by any means, the eruptions they produce can be pretty "ho hum" compared to the enormous explosive potential of the Extreme Volcanoes.
Which killed more people volcanoes or tornadoes?
Volcanoes have killed more people by far. A number of volcanic eruptions, such as the 1883 eruption of Krakatoa, have had had tolls in the tens of thousands, while only 1 tornado is known to have killed over 1000 people.
Are volcanoes are more powerful then nuclear weapons?
Volcanoes can release more energy in a single eruption compared to nuclear weapons, but nuclear weapons can have a more immediate and devastating impact due to their ability to cause widespread destruction in a short amount of time. Both can be immensely destructive in their own ways.
Why are continental volcanoes more likely to cause natural disaster?
There are two reasons. First, continental volcanoes are more likely than other volcanoes to be of the stratovolcano type. These volcanoes produce the largest, most explosive eruptions that pose the greatest risk to human lives and property. Second, since they are on the mainland, continental volcanoes are generally more likely to have people living near them. An eruption that occurs on an uninhabited island and does not affect anybody is not generally considered a disaster.
Why are Hawaiians volcanic eruptions less violent?
Compared with some other volcanoes around the world, the Hawaiian volcanoes are fed by low-viscosity magma with a low gas content. The explosive power of a volcanic eruption is driven by gas trapped in the magma, and magma that is more viscous allows more pressure to build up. The magma in the Hawaiian volcanoes flows out fairly readily.
Does the earths axis the equator and the prime meridian effect the start of the volcanoes erupting?
The Earth's axis is always the same in relation to the Universe. The Sun has a pull on the Earth and may have more of a pull on the magma when the volcano is facing the Sun. The volcano's distance to the equator may make a difference in the rate of eruption and explosiveness of the eruption as there is more centripetal force propelling the magma at the equator than at the pole. The prime meridian really has nothing to do with the erupting of volcanoes except that certain places on Earth are more likely to have faults in the crust, which is the cause of volcanoes.
