A Simple and Rapid earthquake Detection and discrimination System for ELARMS

Abstract

We present the test of a simple and rapid methodology for earthquake detection and phase association dedicated to dense and reliable networks of seismic stations. The system is ba- sed on the idea of small subnets of stations each one surrounding the station that produce the first trigger. The goal is to provide a rapid detection of relevant earthquakes and to activate ElarmS but also to prevent misinterpretation of out of the network events or the association of false triggers. We apply this system to the case of the Italian National Seismic Network and to the Italian seismicity.