Is economic collpase imminent?

Seriously, oil prices skyrocketing, middle east out of control, and Japan on the brink of disaster, food prices soaring, 3 wars, drug cartels taking out mexican military, and debt 100 percent of gdp, and oil prices about to torpedo. America has taken alot, but could this be the end? Also, the European debt crisis is still ongoing. Portugal has just ousted austerity measure proposal and president has quit. How likely is an economic collapse and how likely is a global economic collapse?