scholarly journals The relationship between seismic quality factor and peak ground acceleration, a case study: M=4.3, 17.01.2015 Eskisehir Earthquake

2020 ◽  
pp. 1-25
Author(s):  
Muammer TÜN
Keyword(s):  
Quality Factor ◽  
Peak Ground Acceleration ◽  
Ground Acceleration ◽  
Seismic Quality Factor ◽  
The Relationship

Attenuation Function Relationship for Far Field Earthquake Considered by Strike Slip Mechanism

2015 ◽  
Vol 754-755 ◽  
pp. 897-901
Author(s):  
Saffuan Wan Ahmad ◽  
Azlan Adnan ◽  
Rozaimi Mohd Noor ◽  
Khairunisa Muthusamy ◽  
Sk Muiz Sk Razak ◽  
...  
Keyword(s):  
Peak Ground Acceleration ◽  
Strike Slip ◽  
Far Field ◽  
Attenuation Relationship ◽  
Ground Acceleration ◽  
Slip Mechanism ◽  
Earthquake Sources ◽  
Peak Ground Accelerations ◽  
Function Relationship ◽  
The Relationship

An attenuation relationship for far field earthquakes considered by strike slip has been developed. The attenuation relationship function was develop using regression analysis. The database consisting of more than 130 peak ground accelerations from seven earthquake sources recorded by Seismology Station in Malaysia have been used to develop the relationship. This study aims to investigate the new relationship attenuation to gain exact peak ground acceleration at the location on site. Based on this study, the location is a structure located at Terengganu seaside.

New Empirical Relationships between Arias Intensity and Peak Ground Acceleration

2016 ◽  
Vol 106 (5) ◽  
pp. 2168-2176 ◽  
Author(s):  
Jia Mei Liu ◽  
Tao Wang ◽  
Shu Ren Wu ◽  
Meng Tan Gao
Keyword(s):  
Focal Mechanism ◽  
Peak Ground Acceleration ◽  
Strong Motion ◽  
Tohoku Earthquake ◽  
Large Set ◽  
Arias Intensity ◽  
Empirical Relationships ◽  
Ground Acceleration ◽  
Local Site ◽  
The Relationship

Abstract Arias intensity (IA) and peak ground acceleration (PGA) have been widely used as measures of the intensity of strong ground motions. This study employs a large set of data consisting of 7034 horizontal and 3474 vertical strong-motion records from 173 worldwide earthquakes (Mw 4.3–7.9) to refine the relationship between IA and PGA and investigates its potential dependence on variables such as earthquake magnitude (Mw), local site condition (VS30), focal mechanism, and fault distance. The dataset from the 2011 Mw 9.0 Tohoku earthquake and the 2013 Mw 6.8 Lushan earthquake is used to demonstrate the usability and necessity of our models. The results reveal that the logarithm of IA increases linearly with the increase of the logarithm of PGA and Mw and the decrease of the logarithm of VS30, and this kind of correlation is not significantly affected by focal mechanism and fault distance. New global empirical relationships for both horizontal and vertical components are developed to estimate IA as a function of PGA, Mw, and VS30. The resulting correlation equations presented in this article represent a significant advancement by incorporating such important features as magnitude and VS30 and enable an improved way of estimating IA from PGA.

scholarly journals The Ground-Motion Attenuation Comparison: A case study for the 2017/05/11 Askale earthquake (Mw4.7)

2020 ◽  
Vol 1 (3) ◽  
pp. 22-26
Author(s):  
Erdem Bayrak
Keyword(s):  
Peak Ground Acceleration ◽  
Complex Structure ◽  
Seismic Belt ◽  
Ground Acceleration ◽  
Attenuation Relationships ◽  
Ground Motion Attenuation ◽  
Acceleration Data ◽  
Earthquake Zone ◽  
Relationship Of

Turkey is located on the Mediterranean-Himalayan seismic belt, which is the second largest earthquake zone in the world. Due to the fact that Erzurum basin is located in the Eastern Anatolia Region, it has a very complex structure in terms of its geological, tectonic and morphological features. Erzurum has been affected by destructive earthquakes throughout history. Some of these are Erzincan earthquake (26 December 1939), Horasan-Narman earthquake (30 October 1983), Spitak-Armenia earthquake (7 December 1988). In this study, the acceleration data of Erzurum-Aşkale (Mw=4.7) was used in order to estimate the peak ground acceleration using attenuation relationships. Attenuation relationships are important to determine how the peak ground acceleration decreases with distance. The data was recorded at twenty accelerometers in and around Erzurum. Peak ground accelerations were estimated according to Sadigh et al. (1997), Ambraseys et al. (1996), Kalkan and Gülkan (2004) attenuation relationships. As a result of calculations and comparisons, attenuation relationship of Sadigh et al. (1997) has found to be appropriate to the acceleration values recorded in the stations and has given the best results for the different soil types.

scholarly journals ANALISIS PERCEPATAN TANAH MAKSIMUM DENGAN MENGGUNAKAN RUMUSAN ESTEVA DAN DONOVAN (Studi Kasus Pada Semenanjung Utara Pulau Sulawesi)

2015 ◽  
Vol 17 (1) ◽  
pp. 99
Author(s):  
Cloudya Gabriella Kapojos ◽  
Gerald Tamuntuan ◽  
Guntur Pasau
Keyword(s):  
Empirical Formula ◽  
Similar Pattern ◽  
Peak Ground Acceleration ◽  
Method Comparison ◽  
Ground Acceleration ◽  
Tectonic Earthquake ◽  
Earthquake Data ◽  
Earthquake Impact

ANALISIS PERCEPATAN TANAH MAKSIMUM DENGAN MENGGUNAKAN RUMUSAN ESTEVA DAN DONOVAN (Studi Kasus Pada Semenanjung Utara Pulau Sulawesi) ABSTRAK Telah dilakukan analisis percepatan tanah maksimum di semenanjung utara Pulau Sulawesi dengan menggunakan rumusan Esteva dan rumusan Donovan. Data yang digunakan adalah data gempa bumi tektonik yang terjadi di sekitar semenanjung utara Pulau Sulawesi pada periode tahun 2008 – 2014. Hasil analisis menunjukkan bahwa perubahan nilai percepatan tanah dari rumusan Esteva dan rumusan Donovan memiliki pola perubahan yang sama terhadap jarak. Nilai percepatan tanah menurut rumusan Donovan lebih tinggi dibandingkan dari rumusan Esteva. Perbandingan dengan data akselerograf mengindikasikan bahwa rumusan Esteva lebih cocok digunakan dalam mengestimasi percepatan tanah maksimum di semenanjung utara Pulau Sulawesi. Hasil pemetaan sebaran percepatan tanah maksimum menunjukkan bahwa wilayah Kabupaten Minahasa Utara berada pada zona dengan resiko yang lebih tinggi dibandingkan wilayah lainnya di semenanjung utara Pulau Sulawesi. Kata Kunci :Percepatan tanah maksimum, gempa bumi, semenanjung utara Pulau Sulawesi ANALYSIS OF PEAK GROUND ACCELERATION USING ESTEVA AND DONOVAN FORMULATIONS (A Case Study On The Northern Part of Sulawesi) ABSTRACT Peak ground acceleration on the northern part of Sulawesi Island has been analysis by using Esteva and Donovan formulations. We use tectonic earthquake data that occurred around the northern part of Sulawesi Island during period of 2008 till 2014. The results showed that both Esteva and Donovan formulations have the similar pattern on changes of peak ground acceleration to the distance. Value of peak ground acceleration calculated with Donovan method higher than Esteva method. Comparison between empirical formula results and accelerograf data show that Esteva formulation more suitable for use in estimating the peak ground acceleration in the northern part of Sulawesi Island. Distribution of peak ground acceleration indicate that the earthquake impact on North Minahasa Regency is higher than other regions in northern part of Sulawesi island. Keynotes: Peak Ground Acceleration, Earthquake, Northern Part of Sulawesi Island

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