Quoted from Wikipedia - Plates Tectonics:
[The lithosphere is broken up into what are called "tectonic plates". In the case of the Earth, there are currently seven to eight major (depending on how they are defined) and many minor plates. The lithospheric plates ride on the asthenosphere. These plates move in relation to one another at one of three types of plate boundaries: convergent, or collisional boundaries; divergent boundaries, also called spreading centers; and conservative transform boundaries. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates varies, though it is typically 0–100 mm annually] The Tectonic plates of Earth are shown in the below figure:] 
1- Shaking, Neighboring Plates in Earth:
And being breaker for the clouds is causing the rain as mentioned in the scientific part, and what is called by science as Separator or barrier, it’s mentioned in Quran as “Breaker” which is more specific than previous words, where it breaks the speed of clouds and cause them to drain their carried water. And notice the second verse immediately, talking about the sweet water (rain water) linking the mountains with rain cycle too.