The Richter Scale, named after American seismologist Charles F. Richter, is a measure of the energy released by an earthquake. However, there are other terms used to describe this scale, including the Local Magnitude (ML), which measures the amplitude of waves recorded by seismographs closest to the epicenter of the earthquake. The Moment Magnitude (MW) measures the total energy released by the earthquake, and the Surface Wave Magnitude (Ms) measures the amplitude of the surface waves produced by the earthquake. All of these terms are used to categorize the strength of an earthquake, with higher values indicating stronger and potentially more destructive seismic activity.