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Probabilistic Seismic Hazard Analysis of the Izmir Bay Area
https://orcid.org/http://orcid.org/0000-0002-4811-2349
https://orcid.org/http://orcid.org/0000-0003-4827-9058
https://orcid.org/http://orcid.org/0000-0002-5275-2197
https://orcid.org/http://orcid.org/0000-0002-5395-8349
Probabilistic Seismic Hazard Analysis (PSHA) is an analysis that quantifies the probability of exceedance or the rate of various ground motion levels at a specific site or an area by using all the possible earthquakes. Since earthquakes are very intense in specific regions, it is important to identify the seismicity level of these areas. The Izmir Bay area is believed to be one of the most critical areas in Türkiye in terms of high seismicity. So, PSHA of the Izmir Bay area was constructed by using 34 SPAC locations which are used to obtain the average shear wave velocity of the upper 30 m (VS30). The diameter of the area to identify the seismic sources is selected as 200 km. Since PSHA mainly results in Peak Ground Acceleration (PGA) values as a quantifier of ground motion intensity measurement, PGA values are based on 15 different periods. Moreover, Response Spectrum results are based on 50-, 100-, 475-, 975-, and 2475-year recurrence intervals for mean in terms of 16%, 50%, and 84% quantiles. Finally, the seismicity contour maps based on 475- and 2475-year recurrence intervals are prepared based on PGA values to visualize the resulting seismicity of the specified region. Since the Izmir Bay area is mainly comprised of low VS30 values, the results of this study are believed to be important to take precautions for disaster resilience considerations.
Probabilistic Seismic Hazard Analysis of the Izmir Bay Area
https://orcid.org/http://orcid.org/0000-0002-4811-2349
https://orcid.org/http://orcid.org/0000-0003-4827-9058
https://orcid.org/http://orcid.org/0000-0002-5275-2197
https://orcid.org/http://orcid.org/0000-0002-5395-8349
Probabilistic Seismic Hazard Analysis (PSHA) is an analysis that quantifies the probability of exceedance or the rate of various ground motion levels at a specific site or an area by using all the possible earthquakes. Since earthquakes are very intense in specific regions, it is important to identify the seismicity level of these areas. The Izmir Bay area is believed to be one of the most critical areas in Türkiye in terms of high seismicity. So, PSHA of the Izmir Bay area was constructed by using 34 SPAC locations which are used to obtain the average shear wave velocity of the upper 30 m (VS30). The diameter of the area to identify the seismic sources is selected as 200 km. Since PSHA mainly results in Peak Ground Acceleration (PGA) values as a quantifier of ground motion intensity measurement, PGA values are based on 15 different periods. Moreover, Response Spectrum results are based on 50-, 100-, 475-, 975-, and 2475-year recurrence intervals for mean in terms of 16%, 50%, and 84% quantiles. Finally, the seismicity contour maps based on 475- and 2475-year recurrence intervals are prepared based on PGA values to visualize the resulting seismicity of the specified region. Since the Izmir Bay area is mainly comprised of low VS30 values, the results of this study are believed to be important to take precautions for disaster resilience considerations.
Probabilistic Seismic Hazard Analysis of the Izmir Bay Area
https://orcid.org/http://orcid.org/0000-0002-4811-2349
https://orcid.org/http://orcid.org/0000-0003-4827-9058
https://orcid.org/http://orcid.org/0000-0002-5275-2197
https://orcid.org/http://orcid.org/0000-0002-5395-8349
Probabilistic Seismic Hazard Analysis (PSHA) is an analysis that quantifies the probability of exceedance or the rate of various ground motion levels at a specific site or an area by using all the possible earthquakes. Since earthquakes are very intense in specific regions, it is important to identify the seismicity level of these areas. The Izmir Bay area is believed to be one of the most critical areas in Türkiye in terms of high seismicity. So, PSHA of the Izmir Bay area was constructed by using 34 SPAC locations which are used to obtain the average shear wave velocity of the upper 30 m (VS30). The diameter of the area to identify the seismic sources is selected as 200 km. Since PSHA mainly results in Peak Ground Acceleration (PGA) values as a quantifier of ground motion intensity measurement, PGA values are based on 15 different periods. Moreover, Response Spectrum results are based on 50-, 100-, 475-, 975-, and 2475-year recurrence intervals for mean in terms of 16%, 50%, and 84% quantiles. Finally, the seismicity contour maps based on 475- and 2475-year recurrence intervals are prepared based on PGA values to visualize the resulting seismicity of the specified region. Since the Izmir Bay area is mainly comprised of low VS30 values, the results of this study are believed to be important to take precautions for disaster resilience considerations.
Probabilistic Seismic Hazard Analysis of the Izmir Bay Area
Lecture Notes in Civil Engineering
Erberik, Murat Altug (editor) / Askan, Aysegul (editor) / Kockar, Mustafa Kerem (editor) / Albayrak, Kubilay (author) / Askan, Aysegul (author) / Karagoz, Ozlem (author) / Tan, Onur (author)
International Conference on Energy and Environmental Science ; 2023 ; Antalya, Türkiye
Proceedings of the 7th International Conference on Earthquake Engineering and Seismology ; Chapter: 10 ; 115-120
2024-06-13
6 pages
Article/Chapter (Book)
Electronic Resource
English
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