upheaval
noun
[ ʌpˈhiːv(ə)l ]
• a violent or sudden change or disruption to something.
• "major upheavals in the financial markets"
Similar:
disruption,
upset,
disturbance,
trouble,
turbulence,
disorder,
disorganization,
confusion,
turmoil,
pandemonium,
bedlam,
furore,
uproar,
disarray,
chaos,
mayhem,
cataclysm,
revolution,
violent change,
sudden change,
• an upward displacement of part of the earth's crust.
• "the first upheaval produced a hill which was called Roof Mountain"