Abstract:<p><span>The frequency-magnitude relation of earthquakes, with particular attention to the <em>b</em>-value of Gutenberg-Richter law, is computed in Southern California. A three-dimensional grid is employed to sample relocated focal mechanisms and determine both the magnitude of completeness and the <em>b</em>-value for each node. Sampling radius and grid size are appropriately chosen accordingly to seismogenic source dimension… Show more
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