Investigating viscoelastic postseismic deformation due to large earthquakes in East Anatolia, Turkey

Sünbül, Fatih; Nalbant, S. S.; Simão, Nuno; Steacy, S.

doi:10.1016/j.jog.2016.01.002

Cited by 4 publications

(1 citation statement)

References 69 publications

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“…However, depending on the geometry of the faults, the seismic hazard represented by stress changes, with following rupture on the neighbouring faults either brought forward in time or delayed (McCloskey et al, 2005). A key element in the stress calculation is the knowledge of the elapsed time since the last damaging earthquake, as the stress renewal process, whereby faults are re-loaded either by regional stress or viscoelastic stress (Sunbul et al, 2016). Among those unknowns, one approach to the problem is determining to what extent an earthquake may influence successive events by utilizing static Coulomb stress calculations (King et al, 1994;McCloskey et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Investigating Time Dependent Stress Changes Globally Following Large Earthquakes (M≥7)

Sünbül¹

2021

International Journal of Environment and Geoinformatics

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Triggered earthquakes can cause disproportionate damages depend on their magnitudes. In fact, there is a causal link between the spatial distribution of those events and the stress changes induced by the mainshock. Co-seismic stress loading is one of the key factors in determination of triggering mechanism. However, the time lags ranging hours to years and the stress diffusion over wider areas cannot be evaluated with the co-seismic process alone. In some cases, the stress interactions for long periods and larger areas can be attributed to post-seismic viscoelastic relaxations. In this study, M≥7 earthquakes from the Global Centroid Moment Tensor (GMCT) catalogue are modelled as dislocations to calculate shear stress changes on following earthquake nodal planes near enough to be triggered. The catalogue scanned for all other events (4.5

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Section: Introductionmentioning

confidence: 99%

Investigating Time Dependent Stress Changes Globally Following Large Earthquakes (M≥7)

Sünbül¹

2021

International Journal of Environment and Geoinformatics

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An Assessment of Urban Sprawl in Northern Sakarya Province Following the 1999 Earthquake, NW Turkey

Sünbül

2019

J Indian Soc Remote Sens

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Decoding Stress Patterns of the 2023 Türkiye‐Syria Earthquake Doublet

Chen,

Liu,

Dal Zilio

et al. 2024

JGR Solid Earth

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Earthquake interaction across multiple time scales can reveal complex stress evolution and rupture patterns. Here, we investigate the role of static stress change in the 2023 Mw 7.8 and 7.6 earthquake doublet along the East Anatolian Fault (EAF), using simulations of 19 historical earthquakes (M ≥ 6.1) and the 2023 earthquake doublet from 1822 to 2023. Focusing on six cascading sub‐events during the 2023 Kahramanmaraş earthquake doublet, we reveal how one sub‐event's stress alteration can impact the emergence and rupture of subsequent sub‐events. Our analysis unveils that the 2023 Mw 7.8 earthquake was delayed due to stress shadow effects from historical events, while the 2023 Mw 7.6 earthquake was accelerated as a result of stress increases from historical events and ultimately triggered by the 2023 Mw 7.8 earthquake. This study underscores the importance of grasping earthquake preparation, rupture initiation, propagation, and termination in the context of intricate fault systems worldwide. Based on these results, we draw attention to increased seismic hazards in the Elazig‐Bingol seismic gap of the EAF and the northern section of the Dead Sea Fault (DSF), necessitating increased monitoring and preparedness efforts.

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Investigating viscoelastic postseismic deformation due to large earthquakes in East Anatolia, Turkey

Cited by 4 publications

References 69 publications

Investigating Time Dependent Stress Changes Globally Following Large Earthquakes (M≥7)

Investigating Time Dependent Stress Changes Globally Following Large Earthquakes (M≥7)

An Assessment of Urban Sprawl in Northern Sakarya Province Following the 1999 Earthquake, NW Turkey

Decoding Stress Patterns of the 2023 Türkiye‐Syria Earthquake Doublet

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