As the world's tectonic plates crash, grind and dive into one another, they release their pent-up energy in giant earthquakes that can rock the ground, trigger volcanic eruptions, move mountains and ...

Quakes ranged in magnitude from 6.7 to 4.7 Tsunami warning was not issued JAKARTA, Indonesia (CNN) -- A series of earthquakes, ranging in magnitude from 6.7 to 4.7, struck off the western coast of ...