| Magmatic processes include inflation or deflation of the magma chamber and fractures filling with magma. |
| The eruptions cause rapid evacuation of the magma chamber and collapse of the overlying volcano summit. |
| When magma moves beneath a volcano, such as when the magma chamber fills prior to an eruption, there is swelling of the volcanic cone above. |
| In the last few years, the volcano grew more seismically active, began inflating in the magma chamber and showed increased geothermal activity. |
| The typical image that this process invokes is that of a magma chamber with bits and pieces of the enclosing country rock or wall rock floating in the magma. |
| Layer of impermeable rock that transmits heat from the magma chamber to the aquifer. |
