Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence
We perform numerical experiments by using a mass–spring fault model subject to an external coseismic stress perturbation due to a remote seismic event happening on another fault, the causative fault. In particular, the aim of this study is to investigate the instantaneous fault interaction and possi...
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ftingv:oai:www.earth-prints.org:2122/7932 2023-05-15T16:48:04+02:00 Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence Bizzarri, A. Crupi, P. de Lorenzo, S. Loddo, M. Bizzarri, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Crupi, P.; Università degli Studi di Bari de Lorenzo, S.; Università degli Studi di Bari Loddo, M.; Università degli Studi di Bari Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Università degli Studi di Bari 2012-04 http://hdl.handle.net/2122/7932 http://www.bo.ingv.it/~bizzarri en eng INGV Rapporti tecnici INGV 222/(2012) 2039-7941 http://hdl.handle.net/2122/7932 http://www.bo.ingv.it/~bizzarri open Earthquake recourrence Hazard 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk article 2012 ftingv 2022-07-29T06:06:16Z We perform numerical experiments by using a mass–spring fault model subject to an external coseismic stress perturbation due to a remote seismic event happening on another fault, the causative fault. In particular, the aim of this study is to investigate the instantaneous fault interaction and possible triggering that happens when a fault perturbed by a stress change fails before the so–called unperturbed instability. As a realistic example we focus our attention on the instantaneous dynamic triggering phenomena occurred during the 17 June 2000 south Iceland seismic sequence in the South Iceland Seismic Zone (SISZ, Reykjanes Peninsula). The main event (Ms 6.6) was followed by three large events within a few tens of seconds (8, 26 and 30 s, respectively) located in a neighborhood of several tens of km. Among them the 26 s event was the best constrained (Bizzarri and Belardinelli, 2008). In the present study, conditions to simulate the instantaneous dynamic triggering connected to the former three events, have been investigated using the simple 1–D spring–slider analogue model representing a fault governed by the rate– and state–dependent friction laws. In previous studies suitable constitutive parameters of the modeled fault which allow the instantaneous triggering of the three events, have been found (Antonioli et al., 2006) and, furthermore, it was also shown how the dynamics of the 26 s event strongly depends on the assumed constitutive law and stress conditions (Bizzarri and Belardinelli, 2008) by considering the Dieterich–Ruina (DR henceforth) and the Ruina–Dieterich (RD henceforth) governing laws. In this context take place the present study original contribution that is to better understand if the conditions of instantaneous dynamic triggering (focusing on the case of the 26 s triggered event) provide any significant differences if modeled with a different rate– and state–dependent governing equation, the Chester and Higgs law (CH henceforth; see Chester and Higgs, 1992; Bizzarri, 2010b; Bizzarri, 2010c) ... Article in Journal/Newspaper Iceland Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Earthquake recourrence Hazard 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk |
spellingShingle |
Earthquake recourrence Hazard 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk Bizzarri, A. Crupi, P. de Lorenzo, S. Loddo, M. Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence |
topic_facet |
Earthquake recourrence Hazard 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk |
description |
We perform numerical experiments by using a mass–spring fault model subject to an external coseismic stress perturbation due to a remote seismic event happening on another fault, the causative fault. In particular, the aim of this study is to investigate the instantaneous fault interaction and possible triggering that happens when a fault perturbed by a stress change fails before the so–called unperturbed instability. As a realistic example we focus our attention on the instantaneous dynamic triggering phenomena occurred during the 17 June 2000 south Iceland seismic sequence in the South Iceland Seismic Zone (SISZ, Reykjanes Peninsula). The main event (Ms 6.6) was followed by three large events within a few tens of seconds (8, 26 and 30 s, respectively) located in a neighborhood of several tens of km. Among them the 26 s event was the best constrained (Bizzarri and Belardinelli, 2008). In the present study, conditions to simulate the instantaneous dynamic triggering connected to the former three events, have been investigated using the simple 1–D spring–slider analogue model representing a fault governed by the rate– and state–dependent friction laws. In previous studies suitable constitutive parameters of the modeled fault which allow the instantaneous triggering of the three events, have been found (Antonioli et al., 2006) and, furthermore, it was also shown how the dynamics of the 26 s event strongly depends on the assumed constitutive law and stress conditions (Bizzarri and Belardinelli, 2008) by considering the Dieterich–Ruina (DR henceforth) and the Ruina–Dieterich (RD henceforth) governing laws. In this context take place the present study original contribution that is to better understand if the conditions of instantaneous dynamic triggering (focusing on the case of the 26 s triggered event) provide any significant differences if modeled with a different rate– and state–dependent governing equation, the Chester and Higgs law (CH henceforth; see Chester and Higgs, 1992; Bizzarri, 2010b; Bizzarri, 2010c) ... |
author2 |
Bizzarri, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Crupi, P.; Università degli Studi di Bari de Lorenzo, S.; Università degli Studi di Bari Loddo, M.; Università degli Studi di Bari Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Università degli Studi di Bari |
format |
Article in Journal/Newspaper |
author |
Bizzarri, A. Crupi, P. de Lorenzo, S. Loddo, M. |
author_facet |
Bizzarri, A. Crupi, P. de Lorenzo, S. Loddo, M. |
author_sort |
Bizzarri, A. |
title |
Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence |
title_short |
Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence |
title_full |
Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence |
title_fullStr |
Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence |
title_full_unstemmed |
Is the dependence on the temperature of the friction important in stress triggering phenomena? The case of the 2000 Iceland seismic sequence |
title_sort |
is the dependence on the temperature of the friction important in stress triggering phenomena? the case of the 2000 iceland seismic sequence |
publisher |
INGV |
publishDate |
2012 |
url |
http://hdl.handle.net/2122/7932 http://www.bo.ingv.it/~bizzarri |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Reykjanes |
geographic_facet |
Reykjanes |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Rapporti tecnici INGV 222/(2012) 2039-7941 http://hdl.handle.net/2122/7932 http://www.bo.ingv.it/~bizzarri |
op_rights |
open |
_version_ |
1766038189348225024 |