2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル

Toshimichi Kidoh; Masayuki Nagano; Ken Miyakoshi; Kensuke Arai; Toshiaki Sato

doi:10.3130/aijs.89.840

2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル

Translated title of the contribution: A CHARACTERIZED FAULT MODEL WITH SHALLOW SUBSURFACE SLIPS FOR REPRODUCING LARGE-AMPLITUDE PULSE-LIKE VELOCITY WAVEFORMS AND PERMANENT DISPLACEMENTS OBSERVED VERY CLOSE TO THE SEISMIC FAULT FOR THE 2023 KAHRAMANMARAŞ EARTHQUAKE (MW7.8) IN TÜRKIYE

Toshimichi Kidoh, Masayuki Nagano, Ken Miyakoshi, Kensuke Arai, Toshiaki Sato

Department of Architecture

Research output: Contribution to journal › Article › peer-review

Abstract

We have done a forward modeling of a characterized fault model, which consists of SMGA’s (Strong Motion Generation Areas), LMGA’s (Long-period Motion Generation Areas) and background areas, for simulating velocity and displacement waveforms observed very close to the seismic faults and crustal deformations during the 2023 Kahramanmaraş earthquake (Mw7.8) in Türkiye. Observed large-amplitude velocity pulses and permanent displacements along the fault have successfully been reproduced by the proposed characterized fault model. We have also examined effects of SMGA and LMGA on near-fault ground motion characteristics.

Translated title of the contribution	A CHARACTERIZED FAULT MODEL WITH SHALLOW SUBSURFACE SLIPS FOR REPRODUCING LARGE-AMPLITUDE PULSE-LIKE VELOCITY WAVEFORMS AND PERMANENT DISPLACEMENTS OBSERVED VERY CLOSE TO THE SEISMIC FAULT FOR THE 2023 KAHRAMANMARAŞ EARTHQUAKE (MW7.8) IN TÜRKIYE
Original language	Japanese
Pages (from-to)	840-849
Number of pages	10
Journal	Journal of Structural and Construction Engineering
Volume	89
Issue number	822
DOIs	https://doi.org/10.3130/aijs.89.840
Publication status	Published - 1 Aug 2024

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Kidoh, T., Nagano, M., Miyakoshi, K., Arai, K., & Sato, T. (2024). 2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル. Journal of Structural and Construction Engineering, 89(822), 840-849. https://doi.org/10.3130/aijs.89.840

Kidoh, Toshimichi ; Nagano, Masayuki ; Miyakoshi, Ken et al. / 2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル. In: Journal of Structural and Construction Engineering. 2024 ; Vol. 89, No. 822. pp. 840-849.

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title = "2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル",

abstract = "We have done a forward modeling of a characterized fault model, which consists of SMGA{\textquoteright}s (Strong Motion Generation Areas), LMGA{\textquoteright}s (Long-period Motion Generation Areas) and background areas, for simulating velocity and displacement waveforms observed very close to the seismic faults and crustal deformations during the 2023 Kahramanmara{\c s} earthquake (Mw7.8) in T{\"u}rkiye. Observed large-amplitude velocity pulses and permanent displacements along the fault have successfully been reproduced by the proposed characterized fault model. We have also examined effects of SMGA and LMGA on near-fault ground motion characteristics.",

keywords = "East Anatolian fault zone, Kahramanmara{\c s} earthquake, Long-period motion generation area, Strong motion generation area, Surface fault ruptures",

author = "Toshimichi Kidoh and Masayuki Nagano and Ken Miyakoshi and Kensuke Arai and Toshiaki Sato",

year = "2024",

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doi = "10.3130/aijs.89.840",

language = "Japanese",

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Kidoh, T, Nagano, M, Miyakoshi, K, Arai, K & Sato, T 2024, '2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル', Journal of Structural and Construction Engineering, vol. 89, no. 822, pp. 840-849. https://doi.org/10.3130/aijs.89.840

2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル. / Kidoh, Toshimichi; Nagano, Masayuki; Miyakoshi, Ken et al.
In: Journal of Structural and Construction Engineering, Vol. 89, No. 822, 01.08.2024, p. 840-849.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - 2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル

AU - Kidoh, Toshimichi

AU - Nagano, Masayuki

AU - Miyakoshi, Ken

AU - Arai, Kensuke

AU - Sato, Toshiaki

PY - 2024/8/1

Y1 - 2024/8/1

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AB - We have done a forward modeling of a characterized fault model, which consists of SMGA’s (Strong Motion Generation Areas), LMGA’s (Long-period Motion Generation Areas) and background areas, for simulating velocity and displacement waveforms observed very close to the seismic faults and crustal deformations during the 2023 Kahramanmaraş earthquake (Mw7.8) in Türkiye. Observed large-amplitude velocity pulses and permanent displacements along the fault have successfully been reproduced by the proposed characterized fault model. We have also examined effects of SMGA and LMGA on near-fault ground motion characteristics.

KW - East Anatolian fault zone

KW - Kahramanmaraş earthquake

KW - Long-period motion generation area

KW - Strong motion generation area

KW - Surface fault ruptures

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Kidoh T, Nagano M, Miyakoshi K, Arai K, Sato T. 2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル. Journal of Structural and Construction Engineering. 2024 Aug 1;89(822):840-849. doi: 10.3130/aijs.89.840

2023 年トルコ・カフラマンマラシュ地震 (MW7.8) の断層ごく近傍で観測された大振幅速度パルス波形ならびに永久変位の再現のための浅部断層すべりを有する特性化震源モデル

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