Exhibit 99.1 ------------ August 14, 2002 Via EDGAR Securities and Exchange Commission Judiciary Plaza 450 Fifth Street, N.W. Washington, DC Re: Anworth Mortgage Asset Corporation - Quarterly Report on Form 10-Q For the Quarterly Period ending June 30, 2002 Ladies and Gentlemen: Transmitted herewith are written statements pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 to accompany the above-captioned periodic report. Very truly yours, Anworth Mortgage Asset Corporation By: /s/ Thad M. Brown ---------------------------------------- Thad M. Brown Chief Financial Officer and Secretary