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| Keywords | Small coastal plain
Predominant period
Velocity structure
Diffuse field theory
Tottori plain
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| Abstract | Issues of predominant period of ground motion and derived underground velocity structure model are investigated in the coastal plains affected by the shallow soft sedimentary layer after the last ice age. It is found that two predominant periods due to the shallow soft layer and deeper drastic sedimentary boundaries are close in a small plain such as the Tottori plain, Japan as an example. This study analyzes the underground velocity structure derived from EHVSR (H/V spectrum ratio of earthquake ground motions) with the diffuse field theory. It is considered that the interaction of close predominant periods due to the different layer boundaries with high contrast may amplify the seismic ground motion in the period range that affects building structures in small plains in coastal area.
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| Publisher | Springer Nature
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| Content Type |
Journal Article
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| EISSN | 18805981
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| Journal Title | EARTH PLANETS AND SPACE
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| Volume | 74
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| Published Date | 2022-05-23
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| Text Version |
Publisher
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| Rights | (C) The Author(s) 2022.This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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| Citation | Kagawa Takao, Noguchi Tatsuya. Issues related to velocity structure estimation in small coastal sedimentary plains: case of Tottori plain facing the Sea of Japan. EARTH PLANETS AND SPACE. 2022. 74. doi:10.1186/s40623-022-01640-3
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| Department |
Faculty of Engineering/Graduate School of Engineering
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| Language |
English
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| Web of Science Key ut | WOS:000799254200001
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