Most often between 700 and 1300 degrees C..
This is called the magma chamber.
A magma chamber.
There is no temperature requirement for volcanic eruptions, the temperature of different typs of magma varies greatly and all of them are capable of producing eruptions. The important thing for eruptions is the pressure within a magma chamber, once the pressure within the chamber exceeds the pressure that is holding the magma inside it will erupt onto the suface.
In a magma chamber
There is no temperature requirement for volcanic eruptions, the temperature of different typs of magma varies greatly and all of them are capable of producing eruptions. The important thing for eruptions is the pressure within a magma chamber, once the pressure within the chamber exceeds the pressure that is holding the magma inside it will erupt onto the suface.
Magma Chamber: underground pocket of molten rock
earthquakes pressurize the main magma chamber in a volcano by the earth crust. as a result the magma comes out of the volcano
Magma is melted rock, which comes from the Earth's mantle, which is the layer immediately below the crust.
A Magma Chamber is a space (that can change size) at a depth below a volcano in which magma can accumulate prior to an eruption. A volcanic vent is a conduit connecting the magma chamber to the surface. It is though this that the magma flows during an eruption.
Magma is molten rock beneath the Earth's surface, while a magma chamber is a reservoir where magma is stored before it rises to the surface as lava. Essentially, magma is the molten rock itself, while a magma chamber is the space within the Earth where magma is stored.
The order of parts through which magma reaches the surface of a volcano is the magma chamber where it accumulates, followed by the central vent or conduit where it travels upwards, and finally the crater or vent at the surface where it erupts and flows out as lava.
In the crust the weak spot we have is the Magma Chamber. But, deep down to the mantle such weak zone is the Asthenosphere.