Advances in the assessment of the local seismological Magnitude scale ML for Venezuela
Raquel Vásquez Stanescu Fundación Venezolana de Investigaciones Sismológicas Publicado en: Saber: Revista Multidisciplinaria del Consejo de Investigacion , (29). Resumen: In this study we determined local magnitude scales ML for Venezuela for vertical (Z) and horizontal seismological components (N-S y E-W), respectively, recorded by the National Seismological Network. We measured 636 vertical and horizontal peak amplitude data for 50 inland earthquakes which occurred between 2006 and 2012, that were recorded by 35 broadband stations of the National Seismological Network. The focal depths were shallow (up to 25 km) and the magnitude range was from 3.4 to 5.7 Mw. We found a good correlation between maximum amplitudes on the vertical component and those on the horizontal component. The average of the ratio of the horizontal component amplitude to the vertical component amplitude was 1.7. The local magnitude coefficients for geometrical spreading and anelastic atten...
