Shake Things Up

The video explains earthquakes, caused by tectonic plates moving and releasing energy as seismic waves. It covers how earthquakes are measured using the Richter and Mercali scales, and provides safety tips for earthquake preparedness. The Richter scale measures magnitude based on seismic wave amplitude, while the Mercali scale assesses intensity based on human observations. The video emphasizes the importance of being prepared for earthquakes, as they are unpredictable.

What causes earthquakes according to the text?

What happens when tectonic plates get stuck against each other?

Explain the difference between the Richter scale and the Mercali scale.

Describe the effects of the San Francisco earthquake of 1989 as mentioned in the text.

What should you do if you find yourself in an earthquake?