The Mariners tweeted the news on Wednesday:
Morales, who spent time at first base and designated hitter last season with the Angels, hit .273 with 22 home runs, 73 RBI and 61 runs in 134 games coming off of injury.
After infamously fracturing his left ankle jumping on home plate after a home run in 2010, he subsequently missed the entire 2011 season.
Vargas posted a 3.85 ERA and 1.18 WHIP last season with the Mariners, going 14-11 in the process. In his last three seasons, he has had an ERA under 4.00 twice.
It makes sense why the Angels would make this trade. While they posted a starters' ERA of 4.04 last season (fifth in the American League), they lost Zack Greinke this offseason to the Los Angeles Dodgers. However, they just signed outfielder Josh Hamilton to a lucrative contract, helping to offset the impact of this loss.
The Mariners scored 619 runs last season, 27th in baseball, so they are in need of a run-producer, and Morales fits the bill.
The Angels went 89-73 last season but missed the playoffs, watching the surprising Oakland Athletics capture the AL West.
The Mariners went 75-87, good for last place in the division.
Both teams are hoping the trade will provide a boost in areas of need. Despite losing Greinke, the Angels look like a scary team in 2013.