Investigation of local site responses at the Bodrum Peninsula (Southwest of Turkey) using the mainshock and aftershocks of the 20 July 2017 Mw6.6 Bodrum-Kos earthquake

Alçık, Hakan

doi:10.4401/ag-7637

Cited by 6 publications

(7 citation statements)

References 38 publications

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“…The Ören Basin is the area with the most apparent onshore evidence of the GFZ, (Gürer and Yılmaz, 2002;Sözbilir et al, 2018), and the Ören fault in this region plays an active role in the forming of the coast (Yıldırım et al, 2022). (Şenel, 2002) and the faults based on Emre et al, 2013;2018 andKoçyiğit, 2017).…”

Section: Regional Geologymentioning

confidence: 99%

“…We observed wave abrasion notches on the bedrock at +1.8 and +2.6 m asl and wave abrasion platforms at +0.6 and +1.6 m asl (Figure 5). Emre et al, 2013;2018 andKoçyiğit, 2017). A notch +0.9 m asl was detected on a volcanic block on an uplifted wave-cut platform at Location 2, 6 km west of Location 1 (Figure 3A, Figure 4).…”

Section: Holocene Relative Sea-level Indicators On the Bodrum Peninsu...mentioning

confidence: 99%

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Holocene Relative Sea-Level Changes Along the Southern Coast of Bodrum Peninsula, SW Anatolia

ZOBU,

DOĞAN

2023

Coğrafi Bilimler Dergisi

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Bodrum Peninsula, which developed under the influence of the extensional tectonic regime in the west of the Anatolian plate, is one of the areas where indicators reflecting relative sea-level changes are seen above the present sea level. These indicators appear in different types throughout the peninsula. This study examined shorelines from sea level to +2.6 m at 6 locations on the southern coast of the Bodrum Peninsula. Suitable indicators for dating were found at two different locations in the study area, and two relative sea-level indicators using mollusk shells were dated by radiocarbon method. One of the indicators is a +1.3 m high beach deposit at Gerenkuyu and was dated to 2678.5±79.5 yr BP. The other indicator is a +1.2 m high beach deposit at Gerindere, which is thought to be compatible with the tidal notch and dated to 2241±88 yr BP. Based on the age data and the reliability of tidal notches as a shoreline indicator, the uplift rate of this indicator in Gerindere for the last 2241±88 years has been calculated to be 0.53 mm/yr.

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Section: Regional Geologymentioning

confidence: 99%

Section: Holocene Relative Sea-level Indicators On the Bodrum Peninsu...mentioning

confidence: 99%

Holocene Relative Sea-Level Changes Along the Southern Coast of Bodrum Peninsula, SW Anatolia

ZOBU,

DOĞAN

2023

Coğrafi Bilimler Dergisi

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“…Ряд наблюдаемых особенностей спектральных характеристик может интерпретироваться по-разному [Kotha et al, 2016;Alcik, 2018], и для однозначной интерпретации требуется привлечение дополнительной информации (например, бурения). Так, например, в [Kotha et al, 2016] такие характеристики, выявленные для станций в диапазоне 1-100 Гц, расположенных в Италии и Турции, коррелируют со средними скоростями в верхних 30 м (параметр «Vs30»).…”

Section: результатыunclassified

Эмпирические Спектральные Характеристики Среды Вблизи Сейсмических Станций Сильных Движений Камчатки

2019

GiG

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По материалам цифровой регистрации изучены спектральные характеристики среды вблизи 23 сейсмических станций Камчатки методом сравнения спектров записи местного землетрясения на целевой и эталонной станциях; в качестве последней выбрана станция «Петропавловск» (PET) с жестким скальным грунтом. Спектры определены по данным многополосной фильтрации. В каждой из изученных частотных полос сопоставлены пиковые амплитуды скорости и уровни спектров Фурье поперечных волн, а также среднеквадратические амплитуды коды. Средний спектр Фурье в пределах полосы найден из равенства Парсеваля по энергии поперечных волн в полосе. Для поперечных волн различие гипоцентральных расстояний скомпенсировано с помощью эмпирических функций затухания. Обработаны записи более 300 событий с диапазоном гипоцентральных расстояний, в основном, 100-600 км, с М = 5-6. Обнаружено большое разнообразие спектральных характеристик по трем методам. Для ряда нескальных станций выявлено ожидаемое поведение спектральных характеристик на высоких частотах. Другие станции могут считаться аналогами ст. PET. Для ряда станций обнаружен четкий рост спектральных отношений с частотой вплоть до 10-кратного усиления в области 20-30 Гц. В целом, выявленные спектральные характеристики в диапазоне до 3-5 Гц согласуются с ожидаемыми трендами, соответствующими геологическому строению в пунктах установки приборов сильных движений.

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“…Alüvyal zeminlerde düşük frekanslarda hesaplanan büyük büyütme değerleri bu bölgelerde bulunan yapıların sismik yükler altındaki davranışı hakkında fikir vermiştir. Alcik (2018) Muğla'nın Bodrum ilçesinde, aralarında Mw=6.6 olan Bodrum Kos depremi verilerinin de bulunduğu deprem kayıtlarını kullanarak HVSR ve SSR teknikleri ile bölgenin baskın frekansını ve zemin büyütme değerlerini belirlemiştir. Referans alınan bölgede 4.8 Hz olan baskın frekansın yumuşak zeminlerin bulunduğu bölgelerde 2.1-2.7 Hz aralığında ve zemin büyütme değerlerinin 1.0-6.6 arasında olduğu bulunmuştur.…”

Section: Introductionunclassified

Obtaining the Transfer Function in One Dimensional Soil Amplification Analysis with Modified Finite Element Transfer Matrix Method

Bilican

Bozdoğan

Keskin

2021

Türk Deprem Araştırma Dergisi

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Highlights*Practical derivation of the transfer function *In the presented method, the system matrix is independent of the number of elements *The presented method can be easily adapted to analysis in frequency and time history Acknowledgements Supports (with project numbers), name of institutions: e.g.; AFAD, TUBITAK, Governorship, Municipality, etc. AimA method is proposed to obtain Transfer functions used in one-dimensional soil amplification Location Methods MFETM method was adapted to the problem of finding transfer functions used in soil amplification analysis ResultsIn the classical finite element method, the system matrix that increases depending on the number of elements is independent of the number of elements in the MFETM method.

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Investigation of local site responses at the Bodrum Peninsula (Southwest of Turkey) using the mainshock and aftershocks of the 20 July 2017 Mw6.6 Bodrum-Kos earthquake

Cited by 6 publications

References 38 publications

Holocene Relative Sea-Level Changes Along the Southern Coast of Bodrum Peninsula, SW Anatolia

Holocene Relative Sea-Level Changes Along the Southern Coast of Bodrum Peninsula, SW Anatolia

Эмпирические Спектральные Характеристики Среды Вблизи Сейсмических Станций Сильных Движений Камчатки

Obtaining the Transfer Function in One Dimensional Soil Amplification Analysis with Modified Finite Element Transfer Matrix Method

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