Local magnitude scale for Valle Medio del Magdalena region, Colombia

摘要

A local Magnitude (ML) scale for Valle Medio del Magdalena (VMM) region was defined by using 514 high quality earthquakes located at VMM area and inversion of 2797 amplitude values of horizontal components of 17 stations seismic broad band stations, simulated in a Wood-Anderson seismograph. The derived local magnitude scale for VMM region was: ML = log(A) + 1.3744*/og(r) + 0.0014776*r 2.397 + S