断层位移危害倡议项目数据库

IF 3.1 2区 工程技术 Q2 ENGINEERING, CIVIL
Alexandra Sarmiento, Danielle Madugo, Andi Shen, Timothy Dawson, Chris Madugo, Stephen Thompson, Yousef Bozorgnia, Stéphane Baize, Paolo Boncio, Albert Kottke, Grigorios Lavrentiadis, Silvia Mazzoni, Christopher Milliner, Fiia Nurminen, Francesco Visini
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引用次数: 0

摘要

通过断层位移危险性计划(FDHI)研究项目开发的新的断层位移和地表破裂危险性分析预测模型需要一个高质量的经验数据库,以便应用先进的统计方法和改进危险性估算。本文讨论了 FDHI 项目数据库的开发和内容。我们系统地收集、审查和整理了断层位移测量数据、地表破裂图以及科学文献中的辅助信息。我们开发并实施了一个框架,用于对主断层和分布式断层进行分类。根据滑动分量测量结果计算出最佳估计净位移振幅,并为所有净位移值分配质量代码。数据库包含 75 个历史上发生的地表破坏性地壳地震,震级从 4.9 到 8.0 级不等。其中 35 次地震具有走向滑动断层机制,25 次和 15 次地震分别为反向/反斜和正向/正斜。虽然大部分地震来自北美西部、日本和其他活跃的构造地区,但也有 9 个逆断层事件来自澳大利亚的稳定大陆地区。该数据库包含来自约 28,000 个观测点的 40,000 多个不同滑动成分的单个断层位移测量值。所有数据均包含地理坐标,并为每次地震提供了特定事件坐标系,将数据转换为沿走向维度。我们的新数据库提供了标准化的地表破裂和断层位移数据及元数据,是为 FDHI 模型开发团队和地球科学界创建可靠、稳定的产品所做的全面努力的成果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Database for the Fault Displacement Hazard Initiative Project
New predictive models for fault displacement and surface rupture hazard analysis developed through the Fault Displacement Hazard Initiative (FDHI) research program require a high-quality empirical database to apply advanced statistical methods and improve hazard estimates. This article discusses the development and contents of the FDHI Project database. We systematically collected, reviewed, and organized fault displacement measurements, surface rupture maps, and supporting information from the scientific literature. A framework was developed and implemented to classify principal and distributed faulting. Best-estimate net displacement amplitudes were calculated from slip component measurements and quality codes were assigned to all net displacement values. The database contains 75 historical, surface-rupturing crustal earthquakes ranging from M 4.9 to 8.0. Thirty-five earthquakes have a strike-slip faulting mechanism, while 25 and 15 events are reverse/reverse-oblique and normal/normal-oblique, respectively. Although most of the earthquakes are from Western North America, Japan, and other active tectonic regions, there are nine reverse faulting events from the stable continental region of Australia. The database contains over 40,000 individual fault displacement measurements for various slip components from roughly 28,000 observation sites. Geographic coordinates are included for all data, and event-specific coordinate systems are provided for each earthquake that transform data into an along-strike dimension. Our new database provides a standardized collection of surface rupture and fault displacement data and metadata that is the result of a comprehensive effort to create a reliable and stable product for the FDHI model development teams and the geoscience community.
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来源期刊
Earthquake Spectra
Earthquake Spectra 工程技术-工程:地质
CiteScore
8.40
自引率
12.00%
发文量
88
审稿时长
6-12 weeks
期刊介绍: Earthquake Spectra, the professional peer-reviewed journal of the Earthquake Engineering Research Institute (EERI), serves as the publication of record for the development of earthquake engineering practice, earthquake codes and regulations, earthquake public policy, and earthquake investigation reports. The journal is published quarterly in both printed and online editions in February, May, August, and November, with additional special edition issues. EERI established Earthquake Spectra with the purpose of improving the practice of earthquake hazards mitigation, preparedness, and recovery — serving the informational needs of the diverse professionals engaged in earthquake risk reduction: civil, geotechnical, mechanical, and structural engineers; geologists, seismologists, and other earth scientists; architects and city planners; public officials; social scientists; and researchers.
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