Sensitivity of the Static Earthquake Triggering Mechanism to Elastic Heterogeneity and Main Event Slip

This paper has evolved out of our previous work on static stress transfer, where we used the full-space elastostatic Green's tensor to compute the Coulomb stress transfer impact of the Landers earthquake on the Hector Mine event. In this work, we use the elastostatic Green's tensor for an arbitrary layered Earth model with free-surface boundary conditions to study the impact of elastic heterogeneity as well as source-fault slip and geometry on the stress transfer mechanism. Slip distribution and fault geometry of the source have a significant impact on the stress transfer, especially in case of spatially extended triggered events. Maximization of the Coulomb stress transfer function for known aftershocks provides a mechanism for inverting for the source event slip. Heterogeneity of the elastic earth parameters is shown to have a sizeable, but lower-magnitude, impact on the static stress transfer in 3D. The analysis is applied to Landers/Hector Mine and 100 small "aftershocks" of the Landers event. A computational toolkit is provided for the study of static stress transfer for arbitrary source and receiver faults in layered Earth.Comment: 26 pages, 32 figure

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The mol­ecule of the title compound, C22H26O2, exhibits Ci mol­ecular symmetry with a crystallographic inversion centre at the mid-point of the central C—C bond. A kink in the mol­ecule is defined by the torsion angle of 66.7 (2)° about this central bond of the alkyl bridge

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The complete molecule of the title compound, C28H38O2, is generated by a crystallographic centre of symmetry. The molecular conformation displays an intramolecular C—H...π interaction