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Author:

Liu, Yanqiong (Liu, Yanqiong.) | Zhao, Qingxu (Zhao, Qingxu.) | Wang, Yanwei (Wang, Yanwei.)

Indexed by:

Scopus SCIE

Abstract:

Rapid and accurate prediction of peak ground acceleration (PGA) is an important basis for determining seismic damage through on-site earthquake early warning (EEW). The current on-site EEW uses the feature parameters of the first arrival P-wave to predict PGA, but the selection of these feature parameters is limited by human experience, which limits the accuracy and timeliness of predicting peak ground acceleration (PGA). Therefore, an end-to-end deep learning model is proposed for predicting PGA (DLPGA) based on convolutional neural networks (CNNs). In DLPGA, the vertical initial arrival 3-6 s seismic wave from a single station is used as input, and PGA is used as output. Features are automatically extracted through a multilayer CNN to achieve rapid PGA prediction. The DLPGA is trained, verified, and tested using Japanese seismic records. It is shown that compared to the widely used peak displacement (Pd) method, the correlation coefficient of DLPGA for predicting PGA has increased by 12-23%, the standard deviation of error has decreased by 22-25%, and the error mean has decreased by 6.92-19.66% with the initial 3-6 s seismic waves. In particular, the accuracy of DLPGA for predicting PGA with the initial 3 s seismic wave is better than that of Pd for predicting PGA with the initial 6 s seismic wave. In addition, using the generalization test of Chilean seismic records, it is found that DLPGA has better generalization ability than Pd, and the accuracy of distinguishing ground motion destructiveness is improved by 35-150%. These results confirm that DLPGA has significant accuracy and timeliness advantages over artificially defined feature parameters in predicting PGA, which can greatly improve the effect of on-site EEW in judging the destructiveness of ground motion.

Keyword:

Deep learning Convolution neural network Ground motion On-site earthquake early warning Peak ground acceleration

Author Community:

  • [ 1 ] [Liu, Yanqiong]China Earthquake Network Ctr, Beijing, Peoples R China
  • [ 2 ] [Zhao, Qingxu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, China Minist Educ, Beijing, Peoples R China
  • [ 3 ] [Wang, Yanwei]Guilin Univ Technol, Guangxi Key Lab Geomech & Geotech Engn, Guilin, Peoples R China

Reprint Author's Address:

  • [Zhao, Qingxu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, China Minist Educ, Beijing, Peoples R China;;[Wang, Yanwei]Guilin Univ Technol, Guangxi Key Lab Geomech & Geotech Engn, Guilin, Peoples R China

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Source :

SCIENTIFIC REPORTS

ISSN: 2045-2322

Year: 2024

Issue: 1

Volume: 14

4 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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