The Fed tripled the monetary base:
It did this by buying securities from banks. Banks, in turn, have held most of this additional monetary base as reserves:
Most of this increase in reserves is nothing more than checking account balances that banks hold at the Federal Reserve.
As a consequence of most of the increase in the monetary base being held by banks as reserves, the money stock has increased relatively modestly:
Even this increase in the money stock has not generated much price inflation, because the demand to hold money increased in the wake of the financial crisis:
None of these monetary shenanigans by the Fed has averted recession: