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Earth, Planets and Space
Fig. 1. | Earth, Planets and Space

Fig. 1.

From: Dynamic rupture simulation of the 2011 off the Pacific coast of Tohoku Earthquake: Multi-event generation within dozens of seconds

Fig. 1.

Calculation procedure of pseudo-BDM (pBDM). pBDM requires three parallel calculations: (1) a boundary-based method for a homogeneous full space (bottom), (2) a domain-based method for the target model (left top), and (3) a domain-based method for a weak heterogeneity model represented by a layered structure (right top). Color gradations in the top figures indicate a conceptual map of material heterogeneity, such as velocity structures, as shown in Fig. 2. An instantaneous traction change is represented by the combination of a direct term calculated from the boundary-based method and a residual term calculated from the differences between two solutions of the domain-based methods.

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