Question

What kind of eruption do scientists think is caused by a very large magma chamber erupting entirely in one catastrophic explosion?

Answer 1

supervolcano eruption

The exact cause of supervolcano eruptions is still debated. However, scientists think that a very large magma chamber erupts entirely in one catastrophic explosion. This creates a caldera into which the surface collapses   Figure below  . The composition of the eruption is felsic or highly felsic.