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Because nothing can be still and if more magma forms it has to push the rest away

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What volcanoes occur where two tectonic plates move apart and magma rises up to create new crust?

Volcanoes that occur where two tectonic plates move apart are typically found at mid-ocean ridges. Magma rises up through the cracks formed by the moving plates, creating new oceanic crust as it cools and solidifies. These types of volcanoes are known as submarine or underwater volcanoes.


Can vocanoes ever stop erupting?

Yes. Volcanoes can "die" fissures in tectonic plates allow magma to rise, causing volcanoes, and these can move, or cease to emit magma.


Why do earthquakes and volcanoes show up where they do?

When two tectonics plate move together and volcanoes are made by alot of magma


Why do volcanoes support the theory of plate tectonics?

Volcanoes are caused by the magma from the Earth's mantle; this magma is released through faults in the Earth's tectonic plates.


What volcanoes occur where two plates move apart and magma rises up to create new crust?

Rift volcanoes


How do volcanoes takes place?

Volcanoes are essentially holes in the earths surface through which magma and lava can erupt. when pressure builds up below the earths crust, magma is then forced violently out of the volcanoes.


What do volcanoes have?

Volcanoes have magma.


What type of boundaries are associated with Icelandic Volcanoes associated?

The type of boundary associated with Icelandic volcanoes is the constructive plate boundary, where two plates slowly move apart and magma seeps up through the gap.


Is magma found on earthquakes or volcanoes?

Magma is generally associated with volcanoes


How does volcanoes from and erupt?

Volcanoes erupt when pressure from inside the earth pushes magma through a weakness in the earth's surface. As more and more magma erupts, the volcano is formed and grows.


What type of volcanoes occur when 2 tectonic plates move apart and magma rises up to create new crust?

Rift Volcanoes.


What happens at a ridge?

magma comes through the ocean surface and makes volcanoes