Prediction Equation for Horizontal Ground Motion Peak Values in the Loess Plateau Region
Source abstract
Abstract
This study collects all strong motion records from 134 seismic events in the Loess Plateau region of China between 2020 and 2023. The corresponding ground motion attenuation dataset is constructed through data processing and screening, including 1149 soil horizontal strong ground motion records. Based on this dataset, two ground motion attenuation models are developed. Specifically, through magnitude grouping and weighted processing, two-step fitting methods are used to establish prediction equations for the peak ground acceleration (PGA), effective peak acceleration (EPA), and peak ground velocity (PGV) at the horizontal soil layers. These equations can estimate ground motion parameters with magnitudes ranging from MS 3.0 to MS 6.5 and epicentral distances between 0 and 100 km. Furthermore, attenuation curves are plotted based on the prediction equations. A comparison between the actual observed values and the predicted curves and an evaluation of the fitting residuals assess our models’ fitting performance. The attenuation characteristics of horizontal ground motion parameters in the Loess Plateau region are systematically summarized.
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Research context
OpenAlex topics: Remote Sensing and Land Use
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Affiliations
Institute of Disaster Prevention, Yanjiao 065201, China
Hebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment, Sanhe 065201, China
Funding
Hebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment · Science Research Project of Hebei Education Department · Fundamental Research Funds for the Central Universities
References (21)
Show source-provided references
1. Seismic Safety Issues in Urban Construction on the Loess Plateau
2. Advances in Ground Motion Attenuation Relationship Research in the Loess Plateau of China
3. Methods for Estimating Ground Motion Parameters in Areas Lacking Strong-Motion Records
4. Mapping Methods for Ground Motion Estimation in Areas without Acceleration Records
5. Empirical Attenuation Relationships of Bedrock Ground Motion in the Loess Region of China
6. Analysis and Determination of Ground Motion Attenuation Relationships in Shanxi
7. Study on Seismic Intensity Attenuation Relationships in Gansu Province
8. Research on Ground Motion Attenuation Relationships in Shaanxi Region
9. Peak Ground Acceleration Attenuation Relationships for Loess Regions in China Based on the Wenchuan Earthquake
10. Seismic Intensity Attenuation Relationships in Western China
11. Seismic Intensity Attenuation Relationships for the Central and Western Regions of Inner Mongolia
12. Seismic Intensity Attenuation Relationships in the North-South Seismic Belt
13. Yuan, Y., and Tian, Q. (2012). Engineering Seismology, China Earthquake Press. (In Chinese).
14. Strong-motion earthquake measurement using a digital accelerograph10.1785/BSSA0750051225 ↗
15. Yu, Y. (2012). Seismic Ground Motion Estimation Models in the Wenchuan Earthquake Area. [Ph.D. Thesis, Institute of Engineering Mechanics, China Earthquake Administration]. (In Chinese).
16. China Earthquake Disaster Prevention Center (1990). Earthquake Work Handbook, China Earthquake Disaster Prevention Center.
17. GAO M (2015). The Textbook GB 18306-2015 Zoning Map of Ground Motion Parameters in China Was Publicized, China Quality Inspection Press.
18. Elliptical Attenuation Relationship of Seismic Intensity
19. A Constrained Model of Elliptical Attenuation of Seismic Intensity and Its Application in North China
20. Peak horizontal acceleration and velocity from strong-motion records from the 1979 Imperial Valley, California, earthquake10.1785/BSSA0710062011 ↗
21. A New Two-Step Method for Fitting Seismic Attenuation Relationships