A double from Miroslav Klose on his 100th international appearance, along with goals from Thomas Mueller and defender Arne Friedrich ensured the convincing win over a lacklustre Argentina.
"It's insane to beat Argentina 4-0. It's hard to find the words for a result like that," Mueller told German television after the match. "I think Germany is quaking right now and that's the right way to celebrate this."
In Image: Germany's Miroslav Klose, right, walks past Argentina's Lionel Messi as he celebrates after scoring his team's fourth goal
Coverage: FIFA World Cup