Fig. 2: Spatial variation of coupling ratio, historical rupture, b value, and stress along the Anninghe-Zemuhe fault (AZF). | Nature Communications

Fig. 2: Spatial variation of coupling ratio, historical rupture, b value, and stress along the Anninghe-Zemuhe fault (AZF).

From: Physics-based assessment of earthquake potential on the Anninghe-Zemuhe fault system in southwestern China

Fig. 2

A Comparison between the depth-averaged (0–15 km) coupling ratio (blue dots with gray error bars) and the rupture extent of large historical earthquakes (orange lines, ref. 24) on the AZF. The gray error bars show 1-σ uncertainty of the coupling ratio inferred from statistical analysis (“Method” section). The solid orange lines indicate historical ruptures of high reliability, whereas the dashed lines represent observations with relatively large uncertainty. AZF-1 to AZF-6 at the top of the panel show the identified asperities on the AZF. B Distribution of accumulated shear stress since 1480. C The b values along the AZF, the error bar show 1-σ uncertainty. D Comparison between recurrence intervals calculated based on the physics-based rupture theory (black line) and those inferred from geologic observations (red bars).

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