Hundreds of dikes can invade the cone and inner core of a volcano, often along zones of structural weakness. Left: An exposed dike, approximately five feet wide, at the caldera of Mauna Loa ...

When magma moves into the rift zone of a Hawaiian volcano, there is understandably a lot of excitement and apprehension. How ...

Magma moves through Hawaiian rift zones as dikes, which are tabular sheets of magma that move laterally and vertically ...