20.500.12556/DKUM-66414 Triggered dynamics in a model of different fault creep regimes The study is focused on the effect of transient external force induced by a passing seismic wave on fault motion in different creep regimes. Displacement along the fault is represented by the movement of a spring-block model, whereby the uniform and oscillatory motion correspond to the fault dynamics in post-seismic and inter-seismic creep regime, respectively. The effect of the external force is introduced as a change of block acceleration in the form of a sine wave scaled by an exponential pulse. Model dynamics is examined for variable parameters of the induced acceleration changes in reference to periodic oscillations of the unperturbed system above the supercritical Hopf bifurcation curve. The analysis indicates the occurrence of weak irregular oscillations if external force acts in the post-seismic creep regime. When fault motion is exposed to external force in the inter-seismic creep regime, one finds the transition to quasiperiodic- or chaos-like motion, which we attribute to the precursory creep regime and seismic motion, respectively. If the triggered acceleration changes are of longer duration, a reverse transition from inter-seismic to post-seismic creep regime is detected on a larger time scale. geophysics nonlinear dynamics chaos earthquake geofizika nelinearna dinamika kaos potres true true true Angleški jezik Slovenski jezik Članek v reviji 2017-06-23 13:13:41 2017-06-23 13:14:34 2024-05-28 10:29:08 2019-07-11 15:46:36 2014 0 0 str. 1-7 Letn. 4 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2045-2322 550.3:53 18727432 20695304 10.1038/srep05401 2045-2322 URN:SI:UM:DK:C4LDYUFV Scientific_Reports_2014_Kostic_et_al._Triggered_dynamics_in_a_model_of_different_fault_creep_regimes.pdf Scientific_Reports_2014_Kostic_et_al._Triggered_dynamics_in_a_model_of_different_fault_creep_regimes.pdf 1 E7DB36DABF985451E34238AF8BDAC40B 1b74fd0b6264ed78f30f9fd1dc3c002012e29b94c8cf26ddf46b7ed929575a24 4b77a5e7-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=113052 http://www.nature.com/articles/srep05401 1 https://dk.um.si/Dokument.php?lang=slv&id=113051 Fakulteta za naravoslovje in matematiko 0 0 0