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About 50 to 70 eruptions happen each year around the world. Some are are big eruptions while some of them are small.

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Q: How many major volcanic erutions occur each year?
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Where do volcanoes happpen?

Volcanic eruptions occur only in certain places and do not occur randomly. That's because the Earth's outermost shell -- the lithosphere -- is broken into a series of slabs known as lithospheric ortectonic plates. These plates are rigid, but they float on the hotter, softer layer in the Earth's mantle. There are 16 major plates. As the plates move about, they spread apart, collide, or slide past each other. Volcanoes occur most frequently at plate boundaries.


What events occur to build mountain range?

Most mountain ranges occur in the region of major plates colliding with each other, forcing one to go over top of the other.


What are Volcanic Eruption types?

== == The types of volcanic eruptions are magmatic, phreatomagmatic, and phreatic. For a description of each type and different styles of each, refer to the link below.


What geologic events occur most often at this mid-oceanic ridge plate boundary?

earthquakes and volcanic eruptions because 2 plates are pushing against each other causing the crust to rise


How many people die due to volcanic eruptions in an average year?

Volcanoes are unpredictable and the amount of volcanic activity each year will vary but some estimates suggest that approximately 700 to 850 people lose their lives each year due to volcanic activity.


Where in the world do earthquakes and volcanoes happen?

Earthquakes occur near faults and near the edges of plates in the earth's crust. Volcanic eruptions occur wherever a volcano is. Volcanic eruptions can occur when magma from below Earth's surface seeps through a weak spot in the crust. Volcanoes occur along plate boundaries, along the edges of plates, so this is where volcanoes occur also.


2 types of volcanic eruptions?

There are two main types of volcanic eruptions: Explosive and Nonexplosive eruptions.


What is the cause of a volcanic eruption?

When tectonic plates go under each other.


How do tsunamis form?

all volcanic eruptions are accompanied with mild shocks. mostly these are very mild that they are hardly felt. when they are severe they make the tectonic plates to move. when the tectonic plates under the water bodies colloid with each other, tsunamis occur.


Where are the most volcanoes located?

The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.


What are the places where earthquakes accured?

Most earthquakes occur in the ring of fire, a large region surrounding the vast Pacific Ocean. There is a lot of active plate movement, and convergent and divergent boundaries cause strike-slip faults to occur. Earthquakes that occur in this region can be in Vanuata, Japan, Alaska, California, Indonesia, and Sumatra.


Where do earthquakes occur commonly?

Along fault lines. Major fault lines occur where the tectonic plates meet each other. The plates will either rub against each other or one will force the other underneath it, which commonly causes earthquakes.