Definitions for "Upheaval"
a state of violent disturbance and disorder (as in politics or social conditions generally); "the industrial revolution was a period of great turbulence"
a violent disturbance; "the convulsions of the stock market"
disturbance usually in protest
the act of raising, or fact of beign raised, above the original level, expecially by volcanic action. [AHDOS
The act of upheaving, or the state of being upheaved; esp., an elevation of a portion of the earth's crust.
(geology) a rise of land to a higher elevation (as in the process of mountain building)
upheaval refers to a situation where swelling soil lifts the foundation or a portion of it upward; in an expansive soil situation upheaval is almost always caused by excess moisture
here: a major disruption, even collapse of a system, here, an economic system