INPAR, CMT, and RCM seismic moment solutions compared for the strongest damaging events (M≥4.8) occurred in the Italian region in the last decade

摘要

We consider moment tensor inversion solutions for a set of damaging earthquakes, with moment magnitude ≥4.8, that occurred in the Italian region during the period 1997-2005. The source parameters have been retrieved using a robust methodology (INPAR method), that performs a dynamic relocation of the hypocentre (latitude, longitude and depth) simultaneously with the determination of the focal mechanism. The INPAR method had successfully been applied over a quite broad range of magnitudes (1.5-6.0) and within a wide variety of tectonic, volcanic, and geothermal environments. The main methodological outcome is that INPAR is particularly useful for regional and local studies of seismic source moment tensor, especially when a limited number of stations makes it difficult to analyse relatively small magnitude events with global scale methodologies.