(Al-Haaqa) 69 : 14
وَحُمِلَتِ الْأَرْضُ وَالْجِبَالُ فَدُكَّتَا دَكَّةً وَاحِدَةً
And the earth and the mountains will be lifted up, then they both will be crushed with a single crack.
See explanation 70: 9; and 89: 21-22.