Results 11 to 20 of about 26,422 (301)

Earthquake hazard zonation using peak ground acceleration (PGA) approach

open access: diamondJournal of Physics: Conference Series, 2013
The objective of this research is to develop seismic hazard area zones in the building infrastructure of the Banda Aceh City Indonesia using peak ground acceleration (PGA) measured using global and local attenuation function. PGA is calculated using attenuation function that describes the correlation between the local ground movement intensity the ...
Edy Irwansyah   +3 more
openalex   +2 more sources

Peak ground acceleration estimation using P-wave parameters and horizontal-to-vertical spectral ratios

open access: goldTerrestrial, Atmospheric and Oceanic Sciences, 2020
Peak ground acceleration (PGA) can be used to estimate the seismic intensity. However, using P-wave features to estimate PGA is a challenging task. One of the reasons for that is that a seismic wave commonly undergoes modification due to various site ...
Ting-Yu Hsu   +4 more
doaj   +3 more sources

地震动峰值特征参数对土坡地震响应的规律研究

open access: yesDizhen xuebao, 2021
本文随机选取了100条具有不同地震动峰值特征参数的地震动记录,通过基线校正、积分等方法获取每条地震动的峰值加速度(PGA)、峰值速度(PGV)和峰值位移(PGD)三个参数,进而基于有限元数值模拟,通过对比同一个观测点不同峰值特征参数的特性与不同观测点同一峰值特征参数的特性来研究土坡的地震响应规律,分析各地震动峰值特征参数与土坡地震响应的相关性。计算结果表明:PGA,PGV和PGD与土坡地震响应都具有良好的正相关性,其相关性系数平均值分别为0.868,0.981,0.926 ...
Lurong Du   +3 more
doaj   +1 more source

Ground motion prediction equations based on shallow crustal earthquakes in Georgia and the surrounding Caucasus

open access: yesEarthquake Science, 2022
Strong ground motions caused by earthquakes with magnitudes ranging from 3.5 to 6.9 and hypocentral distances of up to 300 km were recorded by local broadband stations and three-component accelerograms within Georgia’s enhanced digital seismic network ...
Nato Jorjiashvili   +4 more
doaj   +1 more source

Study on the influence of the seafloor soft soil layer on seismic ground motion [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2021
In the complex medium system of the sea area, the overlying seawater and the surface soft soil have a significant impact on the seafloor ground motion, which brings great seismic risk to the safety of offshore-engineering structures.
J. Lan, J. Liu, X. Song
doaj   +1 more source

Note on scaling of peak ground acceleration and peak ground velocity with magnitude [PDF]

open access: yesGeophysical Journal International, 2002
SUMMARY The theoretical scaling of near-field peak ground acceleration and peak ground velocity with moment magnitude, Mw, is found using an L model of rupture. This scaling matches well with the magnitude scaling of recent attenuation relations.
openaire   +3 more sources

Progress on the earthquake early warning and shakemaps system using low-cost sensors in Taiwan

open access: yesGeoscience Letters, 2022
Building an earthquake early warning (EEW) network requires the installation of seismic instruments around the seismogenic zone. Using low-cost sensors to build a seismic network for EEW and to generate shakemaps is a cost-effective way in the field of ...
Himanshu Mittal   +2 more
doaj   +1 more source

Optimal earthquake intensity measures for probabilistic seismic demand models of ARP1400 reactor containment building

open access: yesNuclear Engineering and Technology, 2021
This study identifies efficient earthquake intensity measures (IMs) for seismic performances and fragility evaluations of the reactor containment building (RCB) in the advanced power reactor 1400 (APR1400) nuclear power plant (NPP).
Duy-Duan Nguyen   +4 more
doaj   +1 more source

Seismic Attenuation and Peak Ground Acceleration in Taiwan

open access: yesBulletin of the Seismological Society of America, 2004
We have taken advantage of the great collection of ground-motion acceleration records from the Central Weather Bureau of Taiwan to derive new attenuation relations corresponding to different geological settings: the shallow crustal earthquakes in the active tectonic region and the subduction zone.
Chang, T.Y., Cotton, F., Angelier, J.
openaire   +4 more sources

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