Volcanoes are shaped like mountains, but they eject lava due to tectonic activities beneath the Earth's surface. This can result in eruptions, depending on the intensity and the type of volcano, and cause damage.
Asked in Volcanoes
Can you stop a volcano from erupting?
No, volcanic eruptions are due to the movement of BIG pieces of land beneath the earths surface called tectonic plates. It is good that these plates move, because it indicates that this planet is a "live planet". planets on which tectonic plates do not move are considered "dead planets". If a volcano is going to erupt near you, the best thing to do is to get away from the volcano.
Asked in Volcanoes
What does the word volcano come from who are they named after?
Asked in Volcanoes
How does a volcano erupt?
A volcano erupts when pressure on the magma chamber causes the magma to rise and come out together with gas, rocks and ashes. The violence of an eruption depends on how much pressure the volcano is under before it erupts. Volcanoes are caused to erupt when the inner core of the earth holds more pressure or heat inside it. Volcanoes are the outside source of releasing the lava and magma that the earth has inside it. When a volcano erupts it means that the earth is releasing a large amount of pressure from within. Magma is continuously supplied from the mantle of the Earth. Shield volcanoes usually have a gentle eruption, as it contains basic lava. Acid-lava and composite volcanoes usually have a violent eruption as it contains acidic lava. The vent of the volcano might also be blocked, causing the magma to force its way out, thus causing a huge explosion. In a more specific way, volcanoes erupt when rock releases pressure.
Asked in Volcanoes, Plate Tectonics
How will the angle at which an oceanic plate subducts affect the distance from the volcanic arc to the trench?
Asked in Volcanoes, Edinburgh
What is the name of Edinburgh's extinct volcano?
Castle Rock, on which Edinburgh Castle is built, is the eroded remnant of the basalt plug of an unnamed, extinct volcano. Arthur's Seat, about a mile away, is the main peak of a group of volcanic hills of the same age and composition as Castle Rock. Features on Arthur's Seat suggest that there were multiple volcanic vents in the area 350 million years ago. Subsequent glacial erosion has left the isolated features seen today.
Asked in Volcanoes
Where are volcanoes in eastern US?
At the time of writing this answer, there are no active volcanoes in the eastern US - the eastern US being generally regarded as all states east of the Mississippi. But there are areas of possible earthquake hazard in the eastern US. New Madrid fault: This is potentially the most dangerous fault zone in the entire country and is located in northeast Arkansas, southeast Missouri, west Kentucky and west Tennessee, with areas in Illinois, Indiana, and Mississippi also likely to be affected. There are less dangerous fault zones in east Tennessee/western North Carolina, southeast of South Carolina, and northern New York/Vermont. The states which have active or potentially active areas of volcanic activity within their borders are (in alphabetical order): Alaska: Wrangeli, more than 30 between Spurr and Kiska in the Aleutians. Arizona: Sunset Crater cinder cone, Uinkaret volcanic field California: Mt. Shasta, Medicine Lake, Lassen Peak, Clear Lake, Coso, Long Valley caldera Colorado: Dotsero maar Idaho: Craters of the Moon Nevada: Steamboat Springs lava domes New Mexico: Carizzozo Cinder Cone, Valles Caldera and Zuni-Bandera field Oregon:three Sisterns, Mt Hood, Mt Jefferson, Newberry Crater, Crater Lake Utah: Black Rock, Markagunt and Santa Clara fields, Washington: Mt St Helens, Mr Baker, Mt Rainer, Glacier Peak. Wyoming: Yellowstone
Why were volcanoes made?
Volcanoes are evidence of the ceaseless tectonic activity that our planet has. The molten core of the earth drives all of the processes we see, including volcanoes, earthquakes, even as high up as the northern lights. The heat that is inside of our planet is the driving force behind volcanoes, however volcanoes form in many different areas, and under many different conditions. Different types of volcanoes are evidence of different processes being present underground. However, to put it simply without the heat from the core of the earth there wouldn't be any volcanoes.
Did the Greeks believe when a volcano exploded it was angry?
Asked in Volcanoes, The Difference Between
What is the difference between lava and magma?
Magma and lava are both molten (liquid) rock, but magma is molten rock produced underneath earth's surface and lava is the magma that was produced that is flowing onto earth's surface. Magma is a molten material found beneath earth's crust that forms minerals with large crystals when it cools slowly and forms minerals with small crystals when it cools rapidly. Lava is on the outside of the volcano and when it cools it forms extrusive igneous rock that are fine grained. When magma on the inside of a volcano cools, this rock is called intrusive igneous rock are coarse grained. Both rocks can look similar but some extrusive igneous rocks like obsidian can have a glassy and smooth texture. lava is what comes out of a volcano magma is what is inside the volcano Lava is hot molten rock that erupted from volcano Magma is hot material below earths crust, from which lava is formed So the basic difference is just that lava is hot molten rock that already erupted; while magma is what is inside earth' s crust Magma is a substance in the mantle, under the earth's crust, where lava is that same substance but outside the earth's crust.
Asked in New Zealand, Volcanoes
How many volcanoes are there in the north island NZ?
there are 78 volcanoes in the north island and Auckland has 46 volcanoes which is over half of the amount There are many volcanoes in the north island. Maybe too many to count. Around Auckland there are 50 volcanoes. Then there are Taranaki, Ruapehu, Tongariro, Ngaruahoe, Tarawera, Taupo, Rotorua and so on. Look at related links below to see a list of NI volcanoes.
What is a caldera?
How do volcanoes affect Hawaii?
Hawai'i was formed from volcanoes. The shape of the islands (volcanic mountains) affects the weather. Volcanic activity causes eartquakes, eruptions on the Big Island cause it to continue to grow, cause fires, close roads. Gasses from the volcanoes can cause vog (volcanic smog) and volcanoes have produced fertile soil in Hawai'i.