March 31, 2012 by Bob Johnson
The key finding is that eruption events are triggered not, as previously understood, by an increase of magma pressure in a subterranean chamber, but instead by the release of stored energy in the volcano’s isohypse pattern in a process known as an ‘Isohypse Reconnection Event’.
Oh, come now! A nonsenses term borrowed from standard physics ?!
Over time, vast amounts of energy become ‘frozen in’ to the isohypses
Another borrowed, and rather silly term to apply to a volcano!
An Isohypse Reconnection Event arises when the stress in the isohypses exceeds the breaking strength of the isohypses.The weakest isohypse will break first and trigger a catastrophic cascade of failures as thestressis redistributed among the remaining isohypses, which then become overstressed and fail in turn.
Ahh, at last, assigning actual mechanical "stress" as the property. We need an engineer to assign the properties that are being described here! Stresses, strains? Which ones? How many? Pictures, we need pictures!..
But, even with all of the ill adapted, from standard physics terms, the explanation is close enough for an overview.
It does need a rewrite with more accurate terms!
...sorry Mr. Johnson.