Earthquakes. National Geographic

Match the words with their definition

earthquake, seismograph, tectonic plate,seismic shock wave, Richter scale, Fault line

1-the sudden shaking of Earth's crust caused by the release of energy along fault lines or from volcanic activity.

2-large, moveable segment of the Earth's crust.

3-instrument that detects and records vibrations caused by seismic shock waves.

4-ordered series of numbers (1-10) used to indicate the amount of energy released during an earthquake. The Richter scale is now outdated. Scientists now use the moment-magnitude scale.

5-fracture in a rock caused by tectonic activity pulling one side of the rock in a different direction.

6-vibration that travels from the focus of an earthquake in all directions