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  1. 防災科研関係論文

Seismicity Based Maximum Magnitude Estimation of Subduction Earthquakes in Peru

https://nied-repo.bosai.go.jp/records/6331
https://nied-repo.bosai.go.jp/records/6331
2cec3669-8ba2-4418-acf9-0d18dab1f049
Item type researchmap(1)
公開日 2024-10-07
タイトル
言語 ja
タイトル Seismicity Based Maximum Magnitude Estimation of Subduction Earthquakes in Peru
タイトル
言語 en
タイトル Seismicity Based Maximum Magnitude Estimation of Subduction Earthquakes in Peru
言語
言語 eng
著者 Juan Carlos Tarazona

× Juan Carlos Tarazona

ja Juan Carlos Tarazona

en Juan Carlos Tarazona

Search repository
Zenon Aguilar

× Zenon Aguilar

ja Zenon Aguilar

en Zenon Aguilar

Search repository
Nelson Pulido

× Nelson Pulido

ja Nelson Pulido

en Nelson Pulido

Search repository
Hiroe Miyake

× Hiroe Miyake

ja Hiroe Miyake

en Hiroe Miyake

Search repository
抄録
内容記述タイプ Other
内容記述 In seismic design, intensity parameters that represent seismic demand are commonly used. A probabilistic seismic hazard assessment is an accurate way of assessing seismic demand, based on a set of parameters that represent the seismicity of a region. However, because some regions lack sufficient information, the selection of these parameters can be controversial. In Peru, selecting a maximum earthquake magnitude (Mmax) for regional seismic hazard assessments has proven to be a challenging task due to the limited available information concerning of large-magnitude events. This study evaluated the Mmax for subduction earthquakes using scaling relationships, empirical evidence, and the extreme value statistics (Kijko and Bayesian) approach. The seismic catalog was updated to February 2022 and divided into 19 subduction seismic sources (5 interface and 14 intraslab). The results showed that the obtained Mmax are within the range of Mw 8.7?9.0 for the interface and Mw 7.6?8.1 for the intraslab sources, which unlike the Mmax values established in previous regional seismic hazard assessments, are more consistent with the historical and instrumental seismicity and rupture models.
言語 ja
抄録
内容記述タイプ Other
内容記述 In seismic design, intensity parameters that represent seismic demand are commonly used. A probabilistic seismic hazard assessment is an accurate way of assessing seismic demand, based on a set of parameters that represent the seismicity of a region. However, because some regions lack sufficient information, the selection of these parameters can be controversial. In Peru, selecting a maximum earthquake magnitude (Mmax) for regional seismic hazard assessments has proven to be a challenging task due to the limited available information concerning of large-magnitude events. This study evaluated the Mmax for subduction earthquakes using scaling relationships, empirical evidence, and the extreme value statistics (Kijko and Bayesian) approach. The seismic catalog was updated to February 2022 and divided into 19 subduction seismic sources (5 interface and 14 intraslab). The results showed that the obtained Mmax are within the range of Mw 8.7?9.0 for the interface and Mw 7.6?8.1 for the intraslab sources, which unlike the Mmax values established in previous regional seismic hazard assessments, are more consistent with the historical and instrumental seismicity and rupture models.
言語 en
書誌情報 ja : Journal of Disaster Research
en : Journal of Disaster Research

巻 18, 号 4, p. 308-318, 発行日 2023-06
出版者
言語 ja
出版者 富士技術出版株式会社
出版者
言語 en
出版者 Fuji Technology Press LTD
DOI
関連識別子 10.20965/jdr.2023.p0308
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