<P> A magma chamber is a large pool of liquid rock beneath the surface of the Earth . The molten rock , or magma , in such a chamber is under great pressure , and , given enough time , that pressure can gradually fracture the rock around it , creating a way for the magma to move upward . If it finds its way to the surface , then the result will be a volcanic eruption ; consequently , many volcanoes are situated over magma chambers . These chambers are hard to detect deep within the Earth , and therefore most of those known are close to the surface , commonly between 1 km and 10 km down . </P>
<P> A magma chamber is a large pool of liquid rock beneath the surface of the Earth . The molten rock , or magma , in such a chamber is under great pressure , and , given enough time , that pressure can gradually fracture the rock around it , creating a way for the magma to move upward . If it finds its way to the surface , then the result will be a volcanic eruption ; consequently , many volcanoes are situated over magma chambers . These chambers are hard to detect deep within the Earth , and therefore most of those known are close to the surface , commonly between 1 km and 10 km down . </P>
where is the lava stored in a volcano
where is the lava stored in a volcano
magma chamber
magma chamber