A STUDY OF SOURCE SCALING RELATIONSHIPS OF CRUSTAL EARTHQUAKES IN THE WORLD CONSIDERING REGIONAL CLASSIFICATION BY CRUSTAL THICKNESS

Q2 Engineering

Journal of Structural and Construction Engineering Pub Date : 2023-11-01 DOI:10.3130/aijs.88.1502

Akihiro SHIMMURA, Kazuhito HIKIMA

引用次数: 0

Abstract

We focused on the regionality of crustal thickness and examined the differences in the scaling relationship between the seismic moment and rupture area for crustal earthquakes. We found good agreement between the scaling relationships and earthquake data when the saturated rupture width and stress drop was set to 16 km and 3.1 MPa, respectively, in regions with a relatively thin crust, including Japan, and set to 28 km and 2.0 MPa, respectively, in regions with a relatively thick crust. For crustal earthquakes, the accuracy of the scaling relationship is improved by considering the crustal thickness.

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考虑地壳厚度区域分类的世界地壳地震震源标度关系研究

重点研究了地壳厚度的地域性，考察了地壳地震的地震矩与破裂区的标度关系的差异。在日本等地壳较薄的地区，饱和破裂宽度和应力降分别设为16 km和3.1 MPa，在地壳较厚的地区，分别设为28 km和2.0 MPa，标度关系与地震数据吻合较好。对于地壳地震，考虑地壳厚度可以提高标度关系的精度。

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

Journal of Structural and Construction Engineering Engineering-Architecture

CiteScore

0.80

自引率

0.00%

发文量

104

审稿时长

24 weeks

期刊介绍： The Architectural Institute of Japan’s Journal of Structural and Construction Engineering aim to pursue theories for building and maintaining pieces of architecture as well as the cities or areas surrounding them, and to accumulate and systematize the knowledge needed to put those theories into practice. The Journal of Structural and Construction Engineering focuses on research results in the specific fields of “building materials and construction” and “structures.” Accordingly, it compiles articles in the following areas, disseminates relevant information, and hosts discussions: ・Concrete, steel, and inorganic materials ・Timber and organic materials ・Finishing materials ・Construction and quality management ・Applied mechanics ・Loads and reliability on structures ・Building foundations ・Timber structures ・Steel structures ・Reinforced concrete structures ・Shell and spatial structures ・Engineering seismology and structural dynamics ・Other composite structures