《Table 2.Earthquakes which have been retrospectively stress-forecast from stress-accumulation where

《Table 2.Earthquakes which have been retrospectively stress-forecast from stress-accumulation where   提示:宽带有限、当前游客访问压缩模式
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《Evidence supporting New Geophysics》


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$Magnitudes are listed as originally reported:many are IMO body-wave magnitude MI.Earthquake where changes in SWS were first recognised(Peacock et al.,1988).–Absent or unreliable stress-relaxation.References:[1]Gao Y and Crampin(2004);[2]Volti and

The first two images in Figure 2,for the observed SWVA~1.5%to~4.5%,show that‘microcracks’are so closely-spaced in the Earth that they verge on failure(at fracture-criticality)and hence are critical-systems(Davies,1989a;Crampin and Peacock,2005,2008;Crampin and Gao Y,2013).Fracture-criticality is the level of cracking at which rocks will fracture if there is any disturbance.The observed SWVA in Figure 2 shows that microcracks verge on fracture-criticality at SWVA just above 4.5%.We identify fracture-criticality with the percolation threshold,which for fluid-saturated stress-aligned microcracked rock is atε≈~0.05(~5%SWVA)(Crampin and Zatsepin,1997) .The behaviour of phenomena verging on failure at singularities(aka double-points,tipping-points,bifurcations,or the case of geophysics,fracture-criticality)imposes a range of fundamentally-new properties on conventional sub-critical physics that are part of a New Physics(Davies,1989b).Hence the proposed New Geophysics(Crampin,2004,2006),reviewed by Crampin and Gao Y(2013).For convenience,Supplementary Material briefly summarises New Geophysics and Table S1 lists some of the new properties imposed by the critically microcracked Earth.