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Yes, the entire world is covered in tectonic plates, however, the oceanic plates are much thinner generally than continental plates, and it is for this reason that hot spots (places on the inside of a plate that are weak enough to permit the passage of magma from the mantle, see Hawaii). This can also cause interesting dynamics at plate bounderies, for instance, on the west coast of the United States the pacific plate (oceanic) and the north American plate (continental) are colliding (at an angle). The thinner pacific plate slips under the thicker north American plate leading to mountain formation and volcanic activity.
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Oceanic plates diverge?
When oceanic plates diverge an underwater earthquake is the result. Oceanic earthquakes often result in disastrous Tsunamis.
Why does sea floor spreading have to happen in the sea?
Because of plate tectonics. Because it's 2 plates underwater that are moving apart. Magma rise up to where the 2 plates are separating to fill in the gap. Seafloor spreading occurs underwater.
What happens when two plates carrying oceanic crusts meet at a trench?
Underwater earthquake, and very likely a resulting tsunami.
What are underwater mountains caused by volcanoes?
An underwater volcano can cause pillow basalts and rare tsunamis. Underwater volcanoes are formed by hot spots in the Earth's mantle.
How do underwater earthquakes happen?
Underwater Earthquakes are formed when two tectonic plates move together and create what is like a tsunami but not the same. It is like an erathquake on land but it is underwater. +++ They are underwater only because they occur in or below the Continental Shelf, part of the continent submerged and planed nearly level by sea-level rise following the end of Ice Age cold phases.
When two plates move apart underwater what forms?
an earthquake
What causes underwater earthquakes and or vocanoes?
faults and plates disturbances
What underwater ridge has formed where the North and South American plates meet the African and Eurasian plates?
The Juan De Fuca
What underwater ridge has formed where North and South American plates meet the African and Eurasian plates?
The Juan De Fuca
What underwater ridge has formed where the North and South American plates meet the African and Eurasia n plates?
The Mid-Atlantic Ridge
Oceanic plates diverge?
When oceanic plates diverge an underwater earthquake is the result. Oceanic earthquakes often result in disastrous Tsunamis.
What is a place where two plates rub together called?
A fault line is a place where two plates rub together. This tectonic activity can cause earthquakes both on dry land and underwater. When it happens underwater, it can create a tsunami.
Why does floor spreading occur?
Because of plate tectonics. Because it's 2 plates underwater that are moving apart. Magma rise up to where the 2 plates are separating to fill in the gap. Seafloor spreading occurs underwater.
How do under water volcanoes explode?
When tectonic plates meet underwater. They crash into eachother and the magma underneath comes out and an underwater volcano starts.
Underwater mountains chains that forms where two tectonic plates are pulling are called?
Underwater mountain chains that form where two tectonic plates are pulling apart are called mid ocean ridges. The largest is the Mid Atlantic Ridge.
Why does sea floor spreading have to happen in the sea?
Because of plate tectonics. Because it's 2 plates underwater that are moving apart. Magma rise up to where the 2 plates are separating to fill in the gap. Seafloor spreading occurs underwater.
What causes the ground to shake?
When the plates underground ( not the eating plates ) collide it causes what we call a tremor or simply an earthquake. This can also happen underwater but we call it a tsunami.
