Near-fault ground motions and regional shaking damage assessment of the 2024 Noto Peninsula Earthquake in Japan

IF 3.8 2区工程技术 Q2 ENGINEERING, GEOLOGICAL

Bulletin of Earthquake Engineering Pub Date : 2025-02-26 DOI:10.1007/s10518-025-02114-z

Katsuichiro Goda, Nobuhito Mori, Takuya Miyashita, Raffaele De Risi, Zhiwang Chang

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Abstract

This study presents ground motion analyses and regional shaking risk assessments for the January 1st, 2024, Noto Peninsula earthquake in Japan. The ground motion analyses are carried out to identify a suitable prediction model of spatially correlated ground motion fields and to study the directivity and velocity pulses of near-fault ground motions. Moreover, a probabilistic regional shaking risk model for residential buildings on the Noto Peninsula is developed by integrating the ground motion data and models, building exposure data with regional characteristics (structural type and construction year), and seismic fragility functions for residential buildings in Japan. Results from the regional shaking risk assessment are obtained as cumulative probability distributions of the number of majorly damaged buildings at prefectural and municipality levels and are compared with the observed building damage statistics for the 2024 earthquake. Sensitivity analyses of the regional shaking risk assessment highlight the importance of incorporating local observations and relevant data.

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2024年日本诺藤半岛地震近断层地震动及区域震动震害评估

本文研究了2024年1月1日日本诺托半岛地震的地震动分析和区域震动风险评估。通过地震动分析，确定适合的空间相关地震动场预测模型，研究近断层地震动的指向性和速度脉冲。将日本住宅的地震动数据与模型、具有区域特征（结构类型、建造年份）的建筑暴露数据以及地震易损性函数相结合，建立了北东半岛住宅的概率区域震动风险模型。区域地震风险评估的结果作为地级市严重受损建筑物数量的累积概率分布，并与2024年地震观测到的建筑物损坏统计数据进行比较。区域震动风险评估的敏感性分析强调了纳入当地观测和相关数据的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of Earthquake Engineering 工程技术-地球科学综合

CiteScore

8.90

自引率

19.60%

发文量

263

审稿时长

7.5 months

期刊介绍： Bulletin of Earthquake Engineering presents original, peer-reviewed papers on research related to the broad spectrum of earthquake engineering. The journal offers a forum for presentation and discussion of such matters as European damaging earthquakes, new developments in earthquake regulations, and national policies applied after major seismic events, including strengthening of existing buildings. Coverage includes seismic hazard studies and methods for mitigation of risk; earthquake source mechanism and strong motion characterization and their use for engineering applications; geological and geotechnical site conditions under earthquake excitations; cyclic behavior of soils; analysis and design of earth structures and foundations under seismic conditions; zonation and microzonation methodologies; earthquake scenarios and vulnerability assessments; earthquake codes and improvements, and much more. This is the Official Publication of the European Association for Earthquake Engineering.