Making Earth movePictures are falling off the walls.Lights are turning on and off.Your bed is shaking.What's going on?It's an earthquake!Earthquakes are measured on a scale of 0---9 called the Richter Seale(里氏震级).A size 9 earthquake is the strongest and most dangerous.What causes ...
Earthquakes are among the most destructive natural disasters. They occur at or near fault lines: cracks in the Earth’s crust that mark the boundary between two different sections. When these sections move relative to one another, the resulting vibration produces an earthquake. Although old fault ...
The Earth's crust is its top layer, which makes up less than 1 percent of the entire depth of the Earth. The structure of the...