What is the connection between volcanoes and earthquakes?


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2007-03-16 13:01:32
2007-03-16 13:01:32

Volcanoes are the vents where the earth is letting out molten magma from the hot interior of the earth. The magma is contained in huge pressurized chambers that are sealed up - usually. When the seal breaks the magma which is under intense pressure bursts through the opening - like when you pop a balloon with a needle. Or if enough pressure builds up it can just explode through the weakest point - like when you overinflate a balloon to the point of popping. Earthquakes are caused by the movement of the huge plates of the earth's crust along the top of the magma. At one end of a plate the magma is constantly being released - puching the plates apart at that point. At the other end, the plate material is being pushed underground deeper into the magma to be melted.The crust itself is pretty irregular. Sometimes the pressure from the movement of the plates gets "stuck" and sits for some time until the pressure from the expanding end of the plate overcomes the resistance and it breaks free suddenly. What should have been a steady 1-3 inches per year of movement can build up to moving 6, 12, 18 inches or more of movement in an instant causing an earthquake. The amount of sudden slip has a lot to do with the severity of the quake. The shockwave of such a massive quick movement ripples through the land outward from the center of the slip (epicenter). This shockwave can ooccasionally break open an otherwise sealed vent to a magma chamber allowing a volcano which was previously inactive to suddenly become active again.


Related Questions

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THERE is no earthquakes or volcanoes in space or in europe

Volcanoes and Earthquakes are alike because both of them are on fault lines and sometimes there are volcanoes after earthquakes and earthquakes after volcanoes and they both sometimes even have tsunami's after them.

Volcanoes don't move. Earthquakes move tectonic plates, and are then pronounced "earthquakes". So, no, I'm pretty sure there isn't.

Volcanoes and earthquakes have different causes and occur in different places. Earthquakes are associated with collisions between crustal plates, but volcanoes are associated with rising plumes of magma from the mantle.

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No but volcanoes often trigger earthquakes.

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*volcanoes Earthquakes and vOlcanoes can cause much damage among an area if it's shaken to pieces.

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Between plate or along fault lines.

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