GNGTS 2015 - Atti del 34° Convegno Nazionale

38 GNGTS 2015 S essione 2.1 Tab. 2 - Anomalies detected in the Cazzaso time series, along with earthquakes recorded by the Friuli Venezia Giulia seismometric network and localized by OGS, selected according to Hauksson and Goddard (1981). ANOMALY Start Time End Time Earthq. Mag LAT LON Epicentral zone Date (MD) 2002-2004 1 13/11/02 20/11/02 27/11/02 3.3 46.42 12.67 Forni di Sotto (Friuli) 2 30/06/03 14/07/03 30/08/03 3.7 46.30 12.77 Tramonti di Sotto (Friuli) 3 24/12/03 02/07/04 12/07/04 5.1 46.30 13.63 Kobarid (SLO) 4 24/08/04 25/08/04 28/08/04 3.3 46.39 12.85 Villa Santina (Friuli) 29/08/04 3.8 46.35 12.70 Fornidi Sotto (Friuli) 07/10/04 3.4 46.41 13.12 MonteSernio (Friuli) 24/11/04 5.1 45.68 10.60 Gargnano (Lomb.) 2004-2005 14/01/05 4.1 46.20 14.03 Podbrdo (SLO) 5 04/02/05 04/03/05 23/03/05 3.3 46.20 12.73 Maniago (Friuli) 6 01/07/05 12/07/05 12/12/05 3.4 46.50 13.37 Malborghet. (Friuli) 2006-2007 7 11/08/06 31/03/09 11/08/06 3.1 46.31 13.14 Gemona ( Friuli) 26/02/07 3.9 46.25 12.52 Claut (Friuli) 26/02/07 3.7 46.25 12.51 Claut (Friuli) 2008-2009 29/02/08 3.7 46.31 13.00 Trasaghis (Friuli) 23/12/08 5.5 44.52 10.23 Nevi. D. Ard. (Emilia) 12/03/09 3.1 46.33 13.28 Chiusaforte (Friuli) 06/04/09 6.1 (1) L’Aquila (Abruzzo) 2011 8 11/03/11 18/03/11 04/07/11 3.1 46.39 12.90 Villa Santina (Friuli) 17/07/11 5.0 44.92 11.23 S. Mrt. In Spi. (Emilia) 9 07/09/11 07/09/11 29/10/11 4.4 45.70 10.95 M. Lessini (Trentino) 2012 10 15/05/12 16/05/12 20/05/12 5.8 (1) 44.76 11.17 Camposanto (Emilia) 20/05/12 5.1 44.78 11.42 S. Agost. (Romagna) 29/05/12 5.6 (1) 44.77 11.06 S. Prospero (Emilia) 29/05/12 5.3 (1) 44.79 10.88 Carpi (Emilia) 09/06/12 4.4 46.19 12.46 Barcis (Friuli) 11 23/07/12 24/07/12 2013 12 14/01/13 20/01/13 25/01/13 4.8 44.16 10.45 Pianura Veneta 13 11/02/13 13/02/13 12/02/13 3.8 46.30 12.55 Claut(Friuli) (1) The reported magnitude is MW (ISIDe, 2009, 2012). The time series values were normalized and standardized. The PCA analysis has highlighted a low contribution of temperature and pressure to the original functions. The correct function was obtained by summing the products of the Principal Components multiplied by the coefficients related to radon. The original function corrected has been rebuilt, with reverse process, multiplying the correct function by the standard deviation and adding the media. The difference between the original function and the correct one is very low. For example,