| مستخلص: |
System that measures the magnitude of earthquakes and other seismic activity. Richter, a professor of seismology at the California Institute of Technology in Pasadena, along with his colleague Beno Gutenberg, invented a scale to calculate the magnitude of seismic energy released by an earthquake. Using data from Southern California seismography stations, Richter and Gutenberg developed the mathematical scale to compare the size of earthquakes and classify them as small, medium, or large. The scale was used as early as 1933 for the Long Beach, California, earthquake and was formally described in a paper published in 1935. Richter scale Earthquakes Richter, Charles Francis |
