North-eastern Italy is one of the most seismically active areas of Italy, being affected in the past by eight destructive earthquakes. This area is densely populated and heavily industrialized, hence its seismic monitoring is crucial for Civil Defense purposes. This task is managed by the Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), through its Centro Ricerche Sismologiche (CRS), that performs the automatic real-time locations through the Antelope® BRTT software package. An accurate choice of the Antelope® setting parameters is necessary to ensure the best performance of the real-time system, that means the most accurate location for the earthquakes with magnitude ML≥2.5 (the alarm threshold), avoiding any false event. This goal was pursued by testing different parameters on a data set built with 295 earthquakes representative of the local seismicity. The tuned parameters were then validated on the earthquakes which occurred in the monitored area in 2011: all events with ML≥2.5 were correctly detected and located with a median epicentral distance difference of 2 km with respect to the OGS catalogue. The OGS real-time system was tuned with these parameters that have been operating successfully since 2012.

Optimizing the automatic location of the real-time Antelope system in north-eastern Italy

Moratto L;Sandron D
2015

Abstract

North-eastern Italy is one of the most seismically active areas of Italy, being affected in the past by eight destructive earthquakes. This area is densely populated and heavily industrialized, hence its seismic monitoring is crucial for Civil Defense purposes. This task is managed by the Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), through its Centro Ricerche Sismologiche (CRS), that performs the automatic real-time locations through the Antelope® BRTT software package. An accurate choice of the Antelope® setting parameters is necessary to ensure the best performance of the real-time system, that means the most accurate location for the earthquakes with magnitude ML≥2.5 (the alarm threshold), avoiding any false event. This goal was pursued by testing different parameters on a data set built with 295 earthquakes representative of the local seismicity. The tuned parameters were then validated on the earthquakes which occurred in the monitored area in 2011: all events with ML≥2.5 were correctly detected and located with a median epicentral distance difference of 2 km with respect to the OGS catalogue. The OGS real-time system was tuned with these parameters that have been operating successfully since 2012.
north-eastern Italy, automatic location, seismic monitoring, Emilia, Antelope®.
File in questo prodotto:
File Dimensione Formato  
bgta0154_MORATTO.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Non specificato
Dimensione 7.8 MB
Formato Adobe PDF
7.8 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.14083/3026
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact