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Volcanoes occur when the earth cools off, and releases internal heat and pressure. Magma is a lower density than the surrounding rocks, and this causes it to rise to the surface. As it rises, gas bubbles form in the magma, exerting pressure, causing the magma to erupt out of the surface of the earth.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoVolcanoes occur when the Earth's plates pull apart causing magma to rise to the surface. Volcanoes can also occur over hotspots and where one plate dives beneath another, forcing magma to rise to the surface.
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What place in the world do volcanoes occur?
Volcanoes mostly occur in areas where tectonic plates meet. Most of the active volcanoes in the world occur in what is called the Ring of Fire around the edges of the Pacific Ocean.
Where do volcanoes occur the most?
The most volcanoes occur around the Pacific Ocean, in an area called the Ring of Fire.
Why do so many of earths volcanoes occur along plate boundries?
Volcanoes occur near plate boudaries because volcanoes need water to erupt.
What sphere do volcanoes occur in?
geosphere
Where on earth do most volcanoes occur?
The Island of Iceland has the most volcanoes (per area) of any place on Earth.
What seasons do volcanoes occur?
volcanoes can occur in any season
Does regional metamorphism occur under volcanoes?
Yes they do occur under volcanoes
Do volcanoes occur in oceans and earthquakes occur on land?
Earthquakes and volcanoes both occur in land and ocean. =)
Do Hotspot volcanoes occur along subduction zones.?
No, hotspot volcanoes do not occur along subduction zones. They occur when plates pass over mantle hot spots.
What place in the world do volcanoes occur?
Volcanoes mostly occur in areas where tectonic plates meet. Most of the active volcanoes in the world occur in what is called the Ring of Fire around the edges of the Pacific Ocean.
Where do volcanoes occur the most?
The most volcanoes occur around the Pacific Ocean, in an area called the Ring of Fire.
Why do so many of earths volcanoes occur along plate boundries?
Volcanoes occur near plate boudaries because volcanoes need water to erupt.
Volcanoes and earthquakes are likely to occur?
Yes, they are likely to occur.
Do volcanoes occur randomly over Earth's surface?
Volcanoes do not occur randomly over Earth's surface. They occur along the located mark of plate boundaries.
What sphere do volcanoes occur in?
geosphere
Where do moderate volcanoes occur?
Hawaii
Can volcanoes occur underwater?
Yes and a great many of the earth's volcanoes are underwater.
