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What is responsible for earthquakes and volcanoes?
Colliding plates Plates sliding past each other cause friction and heat. Subducting plates melt into the mantle, and diverging plates create new crust material. Subducting plates, where one tectonic plate is being driven under another, are associated with volcanoes and earthquakes.
What are the 3 factors affect the earthquake and volcanic activity?
The factors that affect the distribution of earthquakes and volcanic activities are plate boundaries, presence of active volcanoes and the place is along a fault line.
How do volcanoes and earthquakes affect the earth?
A volcanic eruption can change the shape of a mountain by blowing parts of it away, but volcanic eruptions can also build up the land around a volcano when lava flows out and hardens on the surface. The surface of the Earth can crack and shift during an earthquake above the point where the crust moves.
Which boundaries cause earthquakes and volcanoes?
There are three types of tectonic plate boundaries: Plates rip apart at a divergent plate boundary, causing volcanic activity and shallow earthquakes; Transform plate boundaries are where plates slide laterally past one another, producing shallow earthquakes but little or no volcanic activity.
Are all earthquakes caused by volcanic activity?
Sometimes, yes. A few large regional earthquakes (greater than magnitude 6) are considered to be related to a subsequent eruption or to some type of unrest at a nearby volcano. However, volcanoes can only be triggered into eruption by nearby tectonic earthquakes if they are already poised to erupt.
What are the factors responsible for earthquake?
Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. The energy can be released by elastic strain, gravity, chemical reactions, or even the motion of massive bodies. Earthquakes associated with this type of energy release are called tectonic earthquakes.
What is earthquake and causes of earthquake?
An earthquake is caused by a sudden slip on a fault. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth’s crust and cause the shaking that we feel. In California there are two plates – the Pacific Plate and the North American Plate.
Why do volcanoes cause earthquakes?
Volcanically-caused long period earthquakes are produced by vibrations generated by the movement of magma or other fluids within the volcano. Pressure within the system increases and the surrounding rock fails, creating small earthquakes.