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.

The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log (x/(x0)), where = 10^-3. What is the magnitude of an earthquake whose seismographic reading is 7.6 millimeters at a distance of 100 kilometers from its epicenter?

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

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.

Suppose one earthquake measures 9.5 on the Richter scale and another measures 8.7 on the Richter scale. How much more intense was the first earthquake than the second earthquake? Round to the nearest whole number.

The magnitude of an earthquake, M is measured by where I is the intensity of the earthquake and S is aconstant. In 2011, the Great East Japan earthquake had a magnitude 9.0. (i) The Sichuan earthquake in 2008 had an intensity that was 0.1 times that of the Great East Japan earthquake. What was the magnitude of the Sichuan earthquake? (ii) The 2004 Indian Ocean eathquake had a magnitude 9.2. How many times as intense was the Indian Ocean earthquake as compared to the Sichuan earthquake?  Express your answer in terms of , where n is a real number to be determined.