Distributed fiber seismic detection coverage and earthquake magnitude estimation

Junqi Yang; Xiuqing Song; Zhaoyong Wang; Yifan Liu; Luwei Shuai; Junxiang Zhao; Qing Ye; Haiwen Cai

doi:10.1117/12.3007764

24 November 2023 Distributed fiber seismic detection coverage and earthquake magnitude estimation

Junqi Yang, Xiuqing Song, Zhaoyong Wang, Yifan Liu, Luwei Shuai, Junxiang Zhao, Qing Ye, Haiwen Cai

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 129353F (2023) https://doi.org/10.1117/12.3007764
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

Distributed fiber acoustic sensing (DAS) technology combined with the existing extensive submarine optical fiber network is an attractive option for real-time underwater seismic monitoring. Here the earthquake monitoring capability of DAS is evaluated, in terms of magnitude estimation, detection coverage, and directional responsivity. The quantitative DAS seismic response is verified by disturbance experiment. The reliability of DAS detection coverage is demonstrated with several seismic events recorded by DAS at Zhaotong test site and the accuracy of DAS magnitude estimation is verified by comparing with seismic station magnitude, which shows great potential for using DAS in global underwater earthquakes continuous monitoring.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Junqi Yang, Xiuqing Song, Zhaoyong Wang, Yifan Liu, Luwei Shuai, Junxiang Zhao, Qing Ye, and Haiwen Cai "Distributed fiber seismic detection coverage and earthquake magnitude estimation", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 129353F (24 November 2023); https://doi.org/10.1117/12.3007764

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