MORTGAGE RATES FALL: Fixed mortgage rates declined this week, Freddie Mac said. The average rate on the 30-year fixed mortgage fell to 4.76 percent from 4.88 percent the previous week.
15-YEAR BELOW 4 PERCENT: The average rate on the 15-year fixed mortgage dropped to 3.97 percent from 4.15 percent. The last time the rate was below 4 percent was in mid-December.
JAPAN NUCLEAR FEARS: Mortgage rates tend to track Treasury yields, which are falling on fears that Japan's earthquake and nuclear crisis could hamper economic growth.