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Movement of high pressure magma underground typically occurs before a volcanic eruption. This magma is under such a high pressure that it can cause hydraulic fracturing of the surrounding rocks and even bulging of the crust. Both these events will release seismic waves (cause earthquakes). All these data help geologists predict that an eruption is about to occur.

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Do volcanic eruptions and earthquakes occur ONLY at the boundaries?

No. Volcanoes can be found at hot spots away from plate boundaries. These volcanoes can produce earthquakes. Earthquakes can also occur at areas of ancient geologic activty such as failed rifts and can occur as a result fo glacier retreating.


Do volcanoes occur in oceans and earthquakes occur on land?

Earthquakes and volcanoes both occur in land and ocean. =)


Why are volcanoes and earthquakes found together?

The majority of earth's volcanoes and earthquakes occur near the boundaries of tectonic plates. Therefore, an area that has volcanoes is likely to be prone to earthquake as well.


Where are most earthquakes and volcanoes found on?

Most earthquakes and volcanoes are found along plate boundaries, where tectonic plates interact. This includes areas like the Ring of Fire in the Pacific Ocean, where a large number of earthquakes and volcanic eruptions occur. These regions have intense geological activity due to the movement and interaction of tectonic plates.


Volcanoes and earthquakes are likely to occur?

Yes, they are likely to occur.


Earthquakes and occur at plate boundaries?

Volcanoes


Why do earthquakes occur at volcanoes?

To release pressure.


What are the belts called that most earthquakes and volcanoes occur on?

Earthquakes and volcanoes often occur along the boundaries of tectonic plates. These boundaries are known as plate boundaries or fault lines. The most active areas for earthquakes and volcanoes are the Ring of Fire around the Pacific Plate and the Mid-Atlantic Ridge where new oceanic crust is formed.


What are volcanoes and earthquakes likely to occur?

If you mean "where" earthquakes and volcanoes are most likely to occur it is in what's called the "ring of fire" which is the coastal ring around the Pacific Ocean.


Where do earthquakes and volcanoes mostly frequently occur?

Underground Earthquakes occur along fault lines. Volcanoes are all over the world but a good place to find one is in the Ring of Fire.


Where does most of the worlds earthquakes and volcanoes occur?

There is a region called the Pacific Ring of Fire, which bounds the entire Pacific Ocean with active convergent tectonic plates that has most of the world's earthquakes and volcanoes.It has 452 volcanoes and it is home to 75% of the world's dormant and active volcanoes.


Where are the majority of earthquakes and volcanoes in relation to the plate boundaries?

Most earthquakes occur on plate boundaries such as Japan and Chile and most volcanoes occur in diverging plate boundaries like Dallol and Iceland and the Pacific Ring of Fire like Ecuador and Indonesia