Preliminary analysis of surface temperature anomalies that preceded the two major Emilia 2012 earthquakes (Italy)

摘要: In the 1980's, from an analysis of satellite images, Russian scientists reported on a short-term thermal infrared radiation enhancement that occurred before some medium-to-large earthquakes in central Asia [Gorny et al. 1988]. Since then, many researchers have been studying earthquake anomalies with remote sensing data [Qiang 1991, Tronin 1996, Tramutoli 2001, Ouzounov and Freund 2004, Saraf Choudhury Aliano 2008, Blackett 2011]. Recently, abnormal surface latent heat flux [Dey Singh 2003, Cervone 2005, Qin 2009, 2011, 2012], outgoing long-wave [Ouzounov 2007] microwave [Takashi Tadashi 2010] also shown to precede earthquakes. To investigate possible physical mechanisms such anomalies, studies conducted series detecting experiments rock loaded fracturing [Wu 2000, 2002, Wu 2006a, 2006b, 2007], hypotheses proposed. These included: leaking pore-gas, hence resulting greenhouse effect 1995]; activating recombining p-holes during deformation [Freund 2002]; release due near-surface air ionization [Pulinets 2006], stress-induced effects friction fluids Liu 2009]. […] this study, long-term temperature both ground (with greater emphasis data) used determine whether there were associated Emilia 2012 seismic sequence. particular, next section will be dedicated describing method analysis. Section 3, we provide more significant results, which discuss 4, together main conclusions.