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Plate tectonics is responsible for the formation of Pacific islands. As plates move against each other, they generate friction which causes volcanic activity. Over time, the volcanic activity breaks the surface of the water and forms islands. This can take hundreds of thousands of years. The entire time, the plates are still shifting, causing this volcanic activity to create islands spreading out from the source. Hawaii is a perfect example of this activity.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agoThe hawaiian islands were formed when the volcanic eruption spurred in the ocean floor and formed a volcano overtime. That is why Hawaii is made up of volcanoes. Also whale fossils were left behind and became part of Hawaii.
Wiki User
∙ 11y agoThe Hawaiian-Emperor island chain consists of volcanic seamounts formed over a "hotspot" below the constantly-moving Pacific Plate. The spot is located just SE of the big island of Hawaii (which continues to grow from the magma released under it). The hotspot has existed for at least 82 million years.
The "newest" island to form over the hotspot is the Lo'ihi Seamount, which began to grow about 400,000 years ago and is still about 3000 feet underwater. It is expected to reach sea level in about another 100,000 years.
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∙ 15y agoMost of the Pacific Islands have been formed by volcanoes or reefs rising above the water
Wiki User
∙ 12y agothe are formed from a hotspot or magma plume under the ocean. That's why they have some of the worlds most active volcanoes.
Wiki User
∙ 15y agoWiki User
∙ 14y agoMagma rises from the Earth's core to the seafloor and erupts and accumulates to form volcanic islands.Then the island moves and a new piece of lithosphere covers the hot spot.
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∙ 14y agoVolcanic activity.
Wiki User
∙ 14y agoBy volcanic activity.
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∙ 12y agowake up u idiot
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What Hawaiian Islands were formed by which constructive process?
The Hawaiian Islands are formed by the ocean structures known as submarine volcanoes. They continue to build the Pacific islands.
When mount st helens erupted did it form the hawiian islands?
No. The Hawaiian islands are formed by a mantle plume.
How were the Hawaiian islands formed and which type of rock is probably most common in Hawaii?
they were formed by underwater volcanoes
Where the Hawaiian islands formed by earthquakes or volcanoes?
Hawaii was formed by centuries of volcanic magma boiling out. Hawaii and it's sister Islands are active volcanoes.
The hawaiian islands were formed when the pacific plate moved over?
The Hawaiian Islands were each formed over a hot spot in the Earth's crust, creating a volcano. As the Pacific Plate has moved to the northwest, new islands have been created from that same hot spot over time.
Are the hawaiian islands formed at a subduction boundary?
Not. The Hawaiian Islands are formed at a hot spot.
How were the Hawaiian formed?
It is thought that volcanoes formed the Hawaiian islands.
How were Hawaiian islands were formed?
Volcanoes formed the Hawaiian Islands over millions and millions of years.
What Hawaiian Islands were formed by which constructive process?
The Hawaiian Islands are formed by the ocean structures known as submarine volcanoes. They continue to build the Pacific islands.
The Hawaiian islands were formed?
From undersea volcanoes.
What oceans are the Hawaiian Islands formed by?
Volcanoes.
What Hawaiian islands formed first?
The oldest Hawaiian islands are Kauai and Niihau, which are believed to have formed around 5 million years ago. These islands are located in the northwest part of the Hawaiian island chain and are considered the oldest because they were the first to emerge from the volcanic activity that formed the islands.
What are Hawaiian Islands are formed by?
Volcanic activity.
Describe how the Hawaiian Islands formed in the Pacific Ocean?
it was formed be volcanos
How are some islands in the ocean formed?
The Hawaiian Islands were formed and are still being formed right now by volcanic activity.
Where were the Hawaiian islands formed from?
volcanic eruptions and magma
The Hawaiian Islands are formed by what ocean structures.?
Volcanoes.
