13.  The strength of the shaking from an earthquake is called ___________.*1 pointtremorsintensitymagnitudeseismic waves

9. The measure of the energy released by an earthquake.*2 pointsPSWSseismic wavesmagnitudeintensity

During an earthquake, you will first encounter an inital shaking, followed by a different type of shaking. This later type of shaking is due to?Group of answer choicesS-WavesP-WavesTsunamisLandslides

7.  What are the vibrations that travel through Earth carrying the energy released during an earthquake?*1 pointOuter CoreInner CoreSeismic WavesMechanical Waves

6. Scale that is based on observable earthquake damage.*1 pointFujita ScaleSeismoscaleMercalli ScaleRichter Scale

Answer this using the PHIVOLCS Earthquake Intensity Scale (PEIS) *