caa a22 4500 475814061 CHVBK 20180406123805.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1007/PL00001078 doi (NATIONALLICENCE)springer-10.1007/PL00001078 3-D Physical Modelling of Stress Accumulation Processes at Transcurrent Plate Boundaries [Elektronische Daten] [C. Hashimoto, M. Matsu'ura] —We constructed a 3-D physical model of tectonic loading at transcurrent plate boundaries by considering viscoelastic stress relaxation in the asthenosphere and spatial variation in frictional properties (peak strength and critical weakening displacement) of faults. With this model we simulated the process of stress accumulation and release at a seismogenic region with relatively high strength on the plate interface. In low strength regions surrounding the seismogenic region, quasi-static fault slip gradually proceeds with the progress of relative plate motion. The increase of slip deficits in the seismogenic region brings about stress concentration at its margin. The stress accumulation rate is roughly proportional to the inverse of the effective fault length. The accumulated stress is released by unstable dynamic rupture if the critical weakening displacement D c is small, and by stable fault slip if D c is very large. When a fault system consists of two adjacent seismogenic regions, sudden stress release in one region accelerates the stress accumulation process in another region through transient viscoelastic stress transfer as well as instantaneous elastic stress transfer. This indicates the importance of elastic and viscoelastic interaction between adjacent seismic faults even in stress accumulation processes. Birkhauser Verlag Basel,, 2000 Key Words: Tectonic loading, viscoelastic stress relaxation, fault constitutive law, slip deficit nationallicence Hashimoto C. Department of Earth and Planetary Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan. E-mail: hashi@solid.eps.s.u-tokyo.ac.jp, JP aut Matsu'ura M. Department of Earth and Planetary Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan. E-mail: matsuura@eps.s.u-tokyo.ac.jp, JP aut https://doi.org/10.1007/PL00001078 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00001078 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hashimoto C. Department of Earth and Planetary Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan. E-mail: hashi@solid.eps.s.u-tokyo.ac.jp, JP aut NATIONALLICENCE 700 1- Matsu'ura M. Department of Earth and Planetary Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan. E-mail: matsuura@eps.s.u-tokyo.ac.jp, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer