ANAHEIM, Calif. -- Center fielder Adam Jones hit a pair of two-run home runs to give the Baltimore Orioles a 4-2 victory over the Los Angeles Angels on Tuesday night in front of 39,028 at Angel Stadium.

Right-hander Bud Norris (8-6) induced nine groundouts and eight strikeouts in 6 2/3 innings while allowing two runs (one earned), eight hits and two walks. Left-hander Zach Britton pitched a perfect ninth inning with one strikeout for his 17th save.

The Orioles' third victory in five games enabled them to expand their lead over the New York Yankees and Toronto Blue Jays to four games in the American League's East. The Angels fell two games behind the idle Oakland Athletics in the American League West.

Jones broke a 2-2 tie in the top of the sixth inning by hitting a 1-1 slider from right-hander Matt Shoemaker over the center-field wall for his second two-run drive of the game. The homer was Jones' 19th of the season.

Jones had given the Orioles took a 2-0 lead in the top of the first inning with his 18th home run, another two-run drive, into the left-field stands. But after that homer, Shoemaker retired the next 15 batters, striking out eight of them and enabling the Angels to tie the game at 2.

Los Angeles scored an unearned run in the bottom of the first. After right fielder Kole Calhoun singled, center fielder Mike Trout hit a ground ball to Baltimore shortstop J.J. Hardy, who tried to start a double play. But Hardy's wide throw to the left of second baseman Jonathan Schoop enabled Calhoun to reach the base. Calhoun then scored on a single from left fielder Josh Hamilton.

The Angels tied the score in the fourth and had a chance to get more runs. After second baseman Howie Kendrick hit a ground-rule double down the right-field line and came home on catcher Hank Conger's single, the Angels loaded the bases with two outs and Trout at the plate.

Norris threw a 95-mph fastball on the outside corner that Trout took for a called third strike. Trout argued with plate umpire Eric Cooper, to no avail.

Shoemaker (7-3) tied his career best with 10 strikeouts and did not permit a walk in 5 2/3 innings, yet allowed four runs on just five hits.

NOTES: Baltimore recalled RHP Bud Norris from Double-A Bowie to start Monday's game. Norris was sent down to make a minor league start during the All-Star break, and he lost that outing. The Orioles optioned C Steve Clevenger to Triple-A Norfolk. ... Orioles LHP Wei-Yin Chen celebrated his 29th birthday Monday. ... Los Angeles signed free agent C John Buck to a minor league contract. Buck, 34, has played for seven teams in his 10-year career. The Seattle Mariners released Buck last week after he compiled a .226 average in 27 games. ... The Angels also outrighted INF Ian Stewart to Triple-A Salt Lake, three days after designating him for assignment. ... Angels 2B Howie Kendrick had the major league's best average this month, .409 (27-for-66), entering Monday's play. ... Angels SS Erick Aybar performed light agility drills before Monday night's game and said he would be ready to return to the lineup Tuesday. Aybar did not make the starting lineup for the third consecutive game because of a sore left groin but grounded out as a pinch-hitter.