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Volcanoes happen at 2 out of 4 plate boundaries: Constructive plate boundaries and destructive plate boundaries.
In a constructive plate boundary, the plates move apart, causing earthquakes, and letting magma pass through, creating volcanoes.
In a destructive plate boundary, the plates push together. This creates a subduction zone. The rock jolts and grinds its way down causing earthquakes and volcanoes.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoA volcano is formed by when one plate moves below another plate, rock partially melts to make magma. Sometimes the magma is forced to the surface through a weak spot in the crust. A volcanic island forms when an underwater volcano reaches the surface of the water.
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The South Sandwich Islands are largely uninhabited because of the volcanoes and poor weather How did these islands form?
They formed due to the volcanic activity in the area.
What are groups of volcanoes called?
If it is a single island, it is simply known as a volcanic island! If however it is a chain or string of separate islands then it may be a volcanic island arc (these form parallel to trenches at subduction zones) or a volcanic island chain (these form where a mantle plume creates a hotspot and may be in the centre of a tectonic plate. A good example would be the Hawaiian island chain). They can also form a cluster of islands (an archipelago) such as the Canary Islands (again formed by hotspot volcanism) in the Atlantic of the coast of Morocco.
What American islands are actually an underwater chain of volcanoes?
The American islands that are actually an underwater chain of volcanoes are the Hawaiian Islands. These islands were formed by volcanic activity from the Hawaiian-Emperor seamount chain. The islands of Hawaii, Maui, Oahu, Kauai, and others are all part of this volcanic chain.
Were there volcanoes in Haiti?
It wasn't a volcano that erupted it was an earthquake that caused the damage.
What would happen if volcanic eruptions continued to occur on the sea floor?
There are volcanoes along the floor of the ocean that form a trench. When these volcanoes erupt, it can cause tectonic movements.
Is a volcanic island transform?
No. Volcanoes do not form at transform boundaries. Volcanic islands can form at convergent boundaries and at hot spots.
Why did the Volcanic Marianas Islands form west of the Marianas Trench?
The Volcanic Marianas Islands form west of the Marianas trench because plates are formed by underwater volcanoes which will move gently to the west.
Volcanoes can form on the ocean floor.?
They can and do. Many small rocky islands in the pacific are volcanic in origin.
Are Trinidad and Tobago volcanic islands?
Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.Tobago is volcanic in origin, but there are no volcanoes on Trinidad or Tobago.
The South Sandwich Islands are largely uninhabited because of the volcanoes and poor weather How did these islands form?
They formed due to the volcanic activity in the area.
Do volcanoes form from barrier islands?
No. Volcanoes form either as a result of tectonic plates colliding or pulling apart, or from plumes of hot material in the mantle. Barrier islands are usually sedimentary features and are not related to volcanic activity.
What are groups of volcanoes called?
If it is a single island, it is simply known as a volcanic island! If however it is a chain or string of separate islands then it may be a volcanic island arc (these form parallel to trenches at subduction zones) or a volcanic island chain (these form where a mantle plume creates a hotspot and may be in the centre of a tectonic plate. A good example would be the Hawaiian island chain). They can also form a cluster of islands (an archipelago) such as the Canary Islands (again formed by hotspot volcanism) in the Atlantic of the coast of Morocco.
Why would you find a volcanic rock on a volcanic island?
Volcanic islands are formed by volcanoes and are therefore composed of volcanic rock.
What American islands are actually an underwater chain of volcanoes?
The American islands that are actually an underwater chain of volcanoes are the Hawaiian Islands. These islands were formed by volcanic activity from the Hawaiian-Emperor seamount chain. The islands of Hawaii, Maui, Oahu, Kauai, and others are all part of this volcanic chain.
How volcanic islands formed?
By volcanoes under the sea that get bigger and bigger - and become islands..
Were there volcanoes in Haiti?
It wasn't a volcano that erupted it was an earthquake that caused the damage.
How many volcanic islands does Hawaii have?
All of the Hawaiian Islands are volcanic, but only Hawaii, the Big Island, has active volcanoes at this time.
