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Offshore Ground Motion Models for Arias Intensity and Cumulative Absolute Velocity in the Japan Trench Area

Hu, Jinjun / Hu, Lei / Jin, Chaoyue / Wang, Zhongwei / Ding, Yitian / Tang, Chao

This study proposes offshore ground motion models (GMMs) for Arias intensity and cumulative absolute velocity by using the seafloor ground motion database in the Japan Trench area. Whether the station is buried or not will have a great influence on the Arias intensity and cumulative absolute velocity. Compared with existing GMMs, as the magnitude increases, the energy accumulation effect of offshore GMMs is greater than that of onshore GMMs with similar magnitude and distance, and the attenuation rate is slower than other models. The proposed GMMs can be used for seismic hazard and risk analysis in the Japan Trench area.

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Offshore Ground Motion Models for Arias Intensity and Cumulative Absolute Velocity in the Japan Trench Area

Hu, Jinjun / Hu, Lei / Jin, Chaoyue / Wang, Zhongwei / Ding, Yitian / Tang, Chao

This study proposes offshore ground motion models (GMMs) for Arias intensity and cumulative absolute velocity by using the seafloor ground motion database in the Japan Trench area. Whether the station is buried or not will have a great influence on the Arias intensity and cumulative absolute velocity. Compared with existing GMMs, as the magnitude increases, the energy accumulation effect of offshore GMMs is greater than that of onshore GMMs with similar magnitude and distance, and the attenuation rate is slower than other models. The proposed GMMs can be used for seismic hazard and risk analysis in the Japan Trench area.

Offshore Ground Motion Models for Arias Intensity and Cumulative Absolute Velocity in the Japan Trench Area

Hu, Jinjun / Hu, Lei / Jin, Chaoyue / Wang, Zhongwei / Ding, Yitian / Tang, Chao

This study proposes offshore ground motion models (GMMs) for Arias intensity and cumulative absolute velocity by using the seafloor ground motion database in the Japan Trench area. Whether the station is buried or not will have a great influence on the Arias intensity and cumulative absolute velocity. Compared with existing GMMs, as the magnitude increases, the energy accumulation effect of offshore GMMs is greater than that of onshore GMMs with similar magnitude and distance, and the attenuation rate is slower than other models. The proposed GMMs can be used for seismic hazard and risk analysis in the Japan Trench area.

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Title:

Offshore Ground Motion Models for Arias Intensity and Cumulative Absolute Velocity in the Japan Trench Area

Contributors:

Hu, Jinjun (author) / Hu, Lei (author) / Jin, Chaoyue (author) / Wang, Zhongwei (author) / Ding, Yitian (author) / Tang, Chao (author)

Published in:

Journal of Earthquake Engineering ; 27 ; 4005-4023

Publication date:

2023-10-26

Size:

19 pages

ISSN:

1363-2469 , 1559-808X

DOI:

https://doi.org/10.1080/13632469.2022.2155732

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Offshore ground motion model , Arias intensity , cumulative absolute velocity , energy accumulation characteristics , regional feature

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