Regulators shut down banks in Nevada and Washington on Friday, marking the 21st and 22nd failures this year of federally insured banks.

The Federal Deposit Insurance Corp. was appointed receiver of Carson River Community Bank, based in Carson City, Nev. and Rainier Pacific Bank in Tacoma, Wash.

Carson River Community Bank had $51.1 million in assets and $50 million in deposits as of Dec. 31. Rainier Pacific Bank had $717.8 million in assets and $446.2 million in deposits as of Dec. 31.

The FDIC said that Carson River's deposits will be assumed by Reno, Nev.-based Heritage Bank of Nevada. Carson River's lone branch will reopen Monday as an office of Heritage Bank.

Heritage Bank will purchase $38 million of the assets. The FDIC and Heritage Bank agreed to a loss-share agreement on $28.5 million of Carson River Community Bank's assets.

Rainier Pacific's deposits will be assumed by Umpqua Bank in Roseburg, Ore. Rainier Pacific's 14 branches will reopen during normal business hours as offices of Umpqua

Umpqua Bank will purchase $670.1 million of Rainier Pacific's assets. The FDIC will retain the rest. The FDIC and Umpqua Bank agreed to a loss-share agreement on $578.1 million of Rainier Pacific's assets.

The pace of bank seizures this year is likely to accelerate in coming months, FDIC officials said this week.

As the economy has weakened, with unemployment rising, home prices tumbling and loan defaults soaring, bank failures have accelerated and sapped billions of dollars out of the federal deposit insurance fund. It fell into the red last year, hitting a $20.9 billion deficit as of Dec. 31.

Carson River Community bank's failure will cost the FDIC's insurance fund about $7.9 million. Rainier Pacific's failure will cost the insurance fund about $95.2 million.

Banks have tightened their lending standards. U.S. bank lending last year posted the steepest drop since World War II, as the volume of loans fell $587.3 billion, or 7.5 percent, from 2008, the FDIC reported this week.