The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs.
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Richter Scale
The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs.
1955 La Conchita Landslide
Photo of 1995 landslide in La Conchita, California. A landslide is a movement of surface material down a slope.
Photo of 1995 landslide in La Conchita, California. A landslide is a movement of surface material down a slope.