The Richter scale measures the magnitude of a seismograph because it  quantifies the amount of energy released at the earthquake's source, but we can determine the _______________, so we can see how much damage the earthquake will cause.

21. How does the Richter Magnitude Scale calculate its measurements?*1 pointEyewitnessesAmount of damage causedThe amount of time the earthquake lastedThe strength of the seismic waves recorded by a seismograph machine

4. In 1935 seismologist Charles F. Richter devised ..... for rating the strength of earthquakes. For the numerical scale The scale is numerical A numerical scale A scale of numerical

The Richter scale measure of the magnitude of the earthquake can be found by using 𝑅=log⁡(𝐴𝐴0),where 𝐴 is the measure of the intensity of the earthquake, and 𝐴0 is the intensity of a standard earthquake (the amplitude of the smallest detectable wave).Find the magnitude of an earthquake 20% of the intensity of a magnitude 7 earthquake.Give your answer correct to one decimal place.

5.  Which scale measures the magnitude, or size, of an earthquake?*1 pointFujita ScaleSeismoscaleMercalli ScaleRichter Scale

Write the earth quake intensity model. An earthquake measuring 7.1 on the Ricter scale determine how many times more intense this earthquake than a zero-level quake.