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When a volcano erupts, it releases hot melted rock called magma, which then solidifies into solid rock. When enough of this rock has been released underwater, the result is an island.

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How volcanic islands formed?

By volcanoes under the sea that get bigger and bigger - and become islands..


How have volcanoes helped to create the Hawaiian islands?

Volcanoes shot out magma which cooled down to make the Hawaiian Islands.


What are some under water landforms that are under water?

their is volcanoes and underwater islands


How were the hawaiian islands formedHawaii?

Under water volcanoes, then creating the big island and then making the other little islands


Can volcanoes erupt under water?

Yes. If this did not happen we would not have volcanic islands.


How did hawai developed?

Many people believe that Hawaii was formed from volcanoes just above the water, not quite under water volcanoes, but very close. Ash and lava covered the water and started to harden. These eventually became the Hawaiian Islands. The volcanoes in Hawaii are still active and Hawaii is still constantly growing.


Where can you see volcanoes?

You can find volcanoes in Hawaii , the canary islands, under the ocean,in the united states of america,china,rome,the U.K and Pompeii. And all at a low cost.


What type of fault is at the Aleutian Islands?

convergent, when an oceanic plate slides under a continental one, creating volcanoes


Is Ireland a volcanic island?

It was probably at one time because all islands are formed by under water volcanoes.


Why is Hawaii a chain of islands with mostly inactive volcanoes and 1 active island?

Hawaii is located over a hot-spot under the continental crust, and when the Pacific plate moves, the volcanoes go dormant. The Pacific Plate moves slowly forming chains of volcanoes, that form the islands of Hawaii.


Can a volcanic mountain form underwater and on earths surface?

Some volcanoes arise on land; others begin under the seabed and eventually grow tall enough that part of them is above water. Volcanic islands such as Hawaii are an example of this second type.


How far under water can volcanoes get?

Volcanoes can go as far underwater as they can hold their breath. Eventually, they need to take a breath and surface for air. This is how earthquakes and tsunamis happen.