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Earthquakes occur when two plates of the Earth's crust collide. The collision creates a seismic wave, shaking the earth for miles around the collision.

Volcanic eruptions occur when the pressure becomes too great inside the volcano, forcing the magma up through the vents and the main opening in the volcano.

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13y ago
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14y ago

A. Volcanic eruptions B. Earthquakes C. Landslides D. All of the above The answer is D, all of the above.

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11y ago

tectonic plates moving causeing plates to fold and fault causes volcanic eruption and earthquakes

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Q: How either an earthquake or volcanic eruption occurs?
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Related questions

What are the two factors that affect the explosiveness of a a volcanic eruption?

There are two factors that determine how explosive a volcano is. The two factors are the amount of gas that is present in the lava and how easy or difficult that gas can be released into the atmosphere.


Is it true when an earthquake occurs when magma travels from the magma chamber through the pipe and out through the vent?

This describes a volcanic eruption. Eruptions can be accompanied by earthquakes, and some earthquakes do occur as a result of the movement of magma. However, most earthquakes, as stated above, result from the movement of tectonic plates.


What type of succession takes place after lava from a volcanic eruption covers an area?

the lava and ash deposited during a volcanic eruption breaks down to provide valuable nutrients for the soil


What types of updates are provided before a volcanic eruption occurs?

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What happens when an volcanic eruption occurs?

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What is the Arc in the pacific where volcanic and earthquake activity occurs?

ring of fire


What type of updates are provided before volcanic eruption occurs in Alaska?

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What natural phenomenon occurs when magma breaks through the earths crust?

It turns into lava and/or ash in what is called a volcanic eruption.


What do tsunami and volcanoes have to do with earthquakes?

When an Earthquake occurs that is when the ground shakes to create a tsunami or volcano eruption.


What are some events that would start primary succession?

Primary succession occurs in an area where there is only bare rock - no organisms and no soil. This occurs after a volcanic eruption on land that covers an area in lava. It also occurs when a volcano at sea becomes tall enough to become a volcanic island.


Caused by magma pushing upward through weak spots in the earth's crust?

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Does lightning come after or during a volcanoes and explain?

Lighting occurs during volcanic eruptions. It is a result of electrical charges separating as particles of volcanic ash collide in an eruption plume.