Triggered dynamics in a model of different fault creep regimes
Apstrakt
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.
Izvor:
Scientific World Journal, 2014, 4Izdavač:
- Nature Publishing Group, London
DOI: 10.1038/srep05401
ISSN: 2045-2322
PubMed: 24954397
WoS: 000337888600015
Scopus: 2-s2.0-84903220943
Institucija/grupa
PharmacyTY - JOUR AU - Kostić, Srdan AU - Franović, Igor AU - Perc, Matjaz AU - Vasović, Nebojša AU - Todorović, Kristina PY - 2014 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2206 AB - 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. PB - Nature Publishing Group, London T2 - Scientific World Journal T1 - Triggered dynamics in a model of different fault creep regimes VL - 4 DO - 10.1038/srep05401 ER -
@article{ author = "Kostić, Srdan and Franović, Igor and Perc, Matjaz and Vasović, Nebojša and Todorović, Kristina", year = "2014", abstract = "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.", publisher = "Nature Publishing Group, London", journal = "Scientific World Journal", title = "Triggered dynamics in a model of different fault creep regimes", volume = "4", doi = "10.1038/srep05401" }
Kostić, S., Franović, I., Perc, M., Vasović, N.,& Todorović, K.. (2014). Triggered dynamics in a model of different fault creep regimes. in Scientific World Journal Nature Publishing Group, London., 4. https://doi.org/10.1038/srep05401
Kostić S, Franović I, Perc M, Vasović N, Todorović K. Triggered dynamics in a model of different fault creep regimes. in Scientific World Journal. 2014;4. doi:10.1038/srep05401 .
Kostić, Srdan, Franović, Igor, Perc, Matjaz, Vasović, Nebojša, Todorović, Kristina, "Triggered dynamics in a model of different fault creep regimes" in Scientific World Journal, 4 (2014), https://doi.org/10.1038/srep05401 . .