Calculation of Theoretical Travel Time and Automatic Picking of Actual Travel Time in Seismic Data

We used the ray tracing technique based on the IASP91 Earth model to calculate the travel times in order to identify the phases. This technique can calculate the travel times for the seismic phases in the conventional travel time tables. The waveform data received from the stations in the Guangxi ar...

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Bibliographic Details
Published in:Applied sciences 2023-02, Vol.13 (3), p.1341
Main Authors: Gao, Wenqi, Wang, Youxue, Yang, Yang, Peng, Sanxi, Yu, Songping, Liu, Lu, Yan, Lei
Format: Article
Language:English
Subjects:
Accuracy
actual travel time automatic picking
Computers
Correlation analysis
Earth models
Earthquakes
Efficiency
IASP91 Earth model
Machine learning
Methods
Phases
Picking
Propagation
Ray tracing
Seismology
theoretical travel time calculation
Travel
Travel time
Velocity
Waveforms
Wavelet transforms
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Summary:We used the ray tracing technique based on the IASP91 Earth model to calculate the travel times in order to identify the phases. This technique can calculate the travel times for the seismic phases in the conventional travel time tables. The waveform data received from the stations in the Guangxi area are selected for analysis and discussion. The outcomes of the numerical modeling and its use demonstrate that there is good agreement in terms of the absolute differences between the calculated and theoretical travel times from the ISAP91 tables. The relative residuals are determined directly from the actual arrival times picking during the correlation analysis, and the validity of the travel time method for picking seismic phases by correlation analysis can be demonstrated.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13031341