Results 31 to 40 of about 2,044 (165)
A Refined Vs30 Map for Taiwan Based on Ground Motion Attenuation Relationships
Terrestrial, Atmospheric and Oceanic Sciences, 2015 Seismic hazard evaluations require an estimate of the expected ground motion at the site of interest usually by using attenuation relationships. The mean shear-wave velocity over the top 30 m (Vs30) is incorporated in the ground motion attenuation ...
Kun-Sung Liu and Yi-Ben Tsai
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Dizhen xuebao, 2023 采用随机有限断层法进行地震动模拟时，选用合理的参数描述特定局部场地近地表高频衰减特征，对评价地震动模拟结果的正确与否具有重要的实践意义。 在工程场址地震动参数预测中，如何快速确定参数的取值，是实际应用中亟需解决的问题。首先对场地高频衰减系数κ0与平均剪切波速vS30的相关性进行了分析；然后，基于国内外学者计算得到的546个κ0系数，采用一定时窗内的κ0均方根值，讨论其随平均剪切波速vS30增加的变化趋势。 结果表明，虽然κ0具有明显的区域差异性，但其均方根值随着vS30的增大呈现出逐渐减小的趋势 ...
Ziping Lang +4 more
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Vulnerable areas determination based on seismic response at Chile center region [PDF]
E3S Web of Conferences, 2020 Chile is one of most seismic countries in the world. In the past 100 years, more than 8 major seismic events occurred in Chile, with the coastal area of central Chile being one of the most affected Since 2007, nearly 2,306 earthquakes were recorded in ...
das Dores de Jesus da Silva Luciana +2 more
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ROCK FORMATION AND SITE CLASS IN BANDAR LAMPUNG
JGE, 2020 Soil characteristics are important impact for the scale of damage caused by earthquake vibrations. The impact caused by an earthquake in a location depends on the shear wave velocity (Vs).
Rustadi Rustadi, Eko Rananda
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Performance Analysis of Existing Vs30 Prediction Models for Turkey and New Approaches to Improve [PDF]
, 2022 Various parameters are used for geotechnical characterization and considering seismic site conditions. Among them, the most widely used one is the average shear wave velocity (Vs30) of the first 30 meters of the Earth's surface.
Okay, Hakan Bora, Özacar, Atilla Arda
core
Spektra: Jurnal Fisika dan Aplikasinya, 2020 Palu City is composed of sedimentary rocks so that it has a high level of vulnerability when an earthquake occurs. The earthquake that occurred on September 28, 2018, 25 km north of Donggala with a magnitude of 7.4 Mw, had caused a tsunami that struck ...
Sandy Tri Gustono +3 more
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Directionality Scaling of Scalar and Vector Ground Motion Intensity Measures
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT The azimuthal directionality of earthquake ground‐motion intensity measures (IMs) is conventionally described by the ratios between the orientation‐independent maximum (RotD100) and median (RotD50) values over the horizontal plane. This study presents a refined characterization of the directionality of 31 IMs, including spectral accelerations (
Mao‐Xin Wang, Gang Wang
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Pemodelan Estimasi Kecepatan Rambat Gelombang Geser Tanah (VS30) Berbasis Topografi, Geomorfologi dan Geologi [PDF]
, 2023 The 30 m top layer of soil as the medium of propagation of the earthquake wave is the closest to the structure of the building, and could have different effects depending on the type of soil and topography. The Indonesian earthquake code for building and
W.A. Prakoso +5 more
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Jurnal Geosains dan Remote SensingThe 2006 Yogyakarta earthquake was caused by the tectonic movement of the Opak Fault, which is located near the Opak River. This research conducts microtremor data processing and analysis using the Horizontal Vertical Spectral Ratio (HVSR) method and the
Adelia Saras Nugraheni +2 more
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JGE, 2020 Soil mechanical research has been done in Cilacap Regency using DSHA method and microtremor data. This study aims to analyze the local land response to earthquakes based on the dominant frequency parameters (f0), amplification factor (A0), wave velocity ...
Kukuh Dialosa +3 more
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