EARTHQUAKE

1. Focus

2. Epicenter

3. Seismology

3.1. Richter scale

3.2. siesmologist

3.3. seismograph

4. Seismic waves

4.1. Primary wave

4.2. secondary wave

4.3. surface wave

5. intensity

6. Fault

6.1. Dip-slip fault

6.1.1. Strike-Slip fault

6.1.2. Right lateral fault

6.1.3. left lateral fault

6.2. normal fault

6.3. reverse fault

7. magnitude