Articles | Volume 26, issue 3
https://doi.org/10.5194/nhess-26-1231-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-1231-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Mar 2026
Research article |
| 10 Mar 2026
| 10 Mar 2026
Critical evaluation of strong ground motions in Izmir and implications for future earthquake simulation results
Şahin Çağlar Tuna
CORRESPONDING AUTHOR
Department of Civil Engineering, Yaşar University, Izmir, Türkiye
Related authors
Şahin Çağlar Tuna
EGUsphere, https://doi.org/10.5194/egusphere-2026-4292, https://doi.org/10.5194/egusphere-2026-4292, 2026
This preprint is open for discussion and under review for Geoscientific Instrumentation, Methods and Data Systems (GI).
Short summary
Short summary
Earthquake planning needs more than maps of past shaking. This study uses long-term strong-motion records from the İzmir Basin to update future earthquake scenarios and identify areas that may face repeated or uncertain high shaking. The results show that the Tuzla Fault scenario gives the largest potential impact area. The workflow can help cities use monitoring data to guide preparedness, inspection, and resilience planning before damaging earthquakes occur.
Şahin Çağlar Tuna
EGUsphere, https://doi.org/10.5194/egusphere-2026-2387, https://doi.org/10.5194/egusphere-2026-2387, 2026
This preprint is open for discussion and under review for Nonlinear Processes in Geophysics (NPG).
Short summary
Short summary
Natural hazards are often described by how much area is affected, but this can miss how the affected places are connected. This study shows that the same affected area can appear as scattered patches, several grouped zones, or one large connected region. Using observed liquefaction data and computer simulations, it shows that spatial connection gives important extra information for understanding hazard patterns and possible wider impacts.
Şahin Çağlar Tuna
EGUsphere, https://doi.org/10.5194/egusphere-2026-4292, https://doi.org/10.5194/egusphere-2026-4292, 2026
This preprint is open for discussion and under review for Geoscientific Instrumentation, Methods and Data Systems (GI).
Short summary
Short summary
Earthquake planning needs more than maps of past shaking. This study uses long-term strong-motion records from the İzmir Basin to update future earthquake scenarios and identify areas that may face repeated or uncertain high shaking. The results show that the Tuzla Fault scenario gives the largest potential impact area. The workflow can help cities use monitoring data to guide preparedness, inspection, and resilience planning before damaging earthquakes occur.
Şahin Çağlar Tuna
EGUsphere, https://doi.org/10.5194/egusphere-2026-2387, https://doi.org/10.5194/egusphere-2026-2387, 2026
This preprint is open for discussion and under review for Nonlinear Processes in Geophysics (NPG).
Short summary
Short summary
Natural hazards are often described by how much area is affected, but this can miss how the affected places are connected. This study shows that the same affected area can appear as scattered patches, several grouped zones, or one large connected region. Using observed liquefaction data and computer simulations, it shows that spatial connection gives important extra information for understanding hazard patterns and possible wider impacts.
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Short summary
This study investigates strong ground motions recorded in Izmir to understand how earthquakes interact with local soil conditions. By comparing observed records with design spectra and simulated motions, we identify differences between expected and actual shaking levels. The findings show that local ground effects can significantly influence seismic response, emphasizing the need for improved hazard assessment and more reliable earthquake-resistant design in urban areas.
This study investigates strong ground motions recorded in Izmir to understand how earthquakes...
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