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JaLCDOI 10.18926/ESR/65481
Title Alternative Onset time and location of the main rupture of the 2018 Hokkaido Eastern Iburi, Japan, earthquake
FullText URL esr_029_049_063.pdf
Author KOWARI, Hirofumi| KOMATSU, Masanao| TAKENAKA, Hiroshi|
Abstract The rupture process at the beginning stage of the 2018 Hokkaido Eastern Iburi, Japan, earthquake (MJ 6.7) is investigated by analyzing P-wave records from local strong-motion stations. The records show about 3 s of small amplitude arrival (so-called "initial rupture phase") followed by the onset of the main energy release ("main rupture phase"). In this paper we address the issue: where the seismic energy release corresponding to the main rupture phase started at the primary stage of the main rupture, by locating the main rupture onset position. For this aim we applied the 2D and the 3D search methods to estimate the relative location of the onset of the main rupture with respect to the hypocenter, and the time difference between them. The 2D method assumes a plausible initial fault plane and locates the main rupture onset position on the initial fault plane, while the 3D method does not require such assumed fault planes. In the 2D method we employed each of the nodal planes of the first-motion focal mechanism as the initial rupture plane. The 3D method was able to give a better solution than the 2D one. It suggests that the main rupture initiation point might not be on the same fault plane as the hypocenter is. The solution shows that the main rupture onset point is 5.8 km southward and 2.5 km upward from the hypocenter, with the rupture time of 3.3 s from the origin time. It is consistent with the previous studies on the relationship between the magnitude and the initial rupture duration.
Keywords 2018 Hokkaido Eastern Iburi earthquake fault plane initial rupture strong motion
Publication Title Okayama University Earth Science Report
Published Date 2023-03-31
Volume volume29
Issue issue1
Start Page 49
End Page 63
ISSN 1340-7414
language Japanese
Copyright Holders © 2023 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/interdisciplinary/65459
Title Alternative Graduate School of Interdisciplinary Science and Engineering in Health Systems: The Design and Story of Establishment
FullText URL interdisciplinary_3_1.pdf
Author SENO, Masaharu|
Publication Title Interdisciplinary Science
Published Date 2023-03-31
Volume volume3
Start Page 1
End Page 9
ISSN 2436-3227
language Japanese
File Version publisher
FullText URL K0006873_abstract_review.pdf K0006873_fulltext.pdf
Author KAWAKAMI, Sachiko|
Published Date 2023-03-24
Content Type Thesis or Dissertation
Grant Number 甲第6873号
Granted Date 2023-03-24
Thesis Type Doctor of Philosophy in Business Administration
Grantor 岡山大学
language Japanese
FullText URL K0006854_abstract_review.pdf K0006854_fulltext.pdf
Author SHIBAHARA, Akira|
Published Date 2023-03-24
Content Type Thesis or Dissertation
Grant Number 甲第6854号
Granted Date 2023-03-24
Thesis Type Doctor of Philosophy in Engineering
Grantor 岡山大学
language Japanese
Title Alternative Excavation report of the third to the sixth excavations of the Iwabushi site Tottori Prefecture
FullText URL Fulltext20230404-2.pdf
Author Matsumoto, Naoko|
Published Date 2023-03-25
language Japanese
File Version publisher
License https://creativecommons.org/licenses/by/4.0
JaLCDOI 10.18926/CTED/65084
Title Alternative A Study of Teaching Materials Used for Disaster Prevention Education in Early Childhood and its Requirements
FullText URL cted_013_357.pdf
Author Baba, Noriko| 大蔵 蓮| 蓮井 和也| 西山 節子|
Abstract  本論では,地震災害や地震防災に焦点を当て,幼児期の防災教育に活用されている具体的な教材を取り上げ,それらに見る共通の特徴や要素について検証した。それらを踏まえ,教育効果を期待できる幼児期に適した教材の条件について検討したところ,①子どもの発達過程や興味関心に即している,②遊びを通して学べる,③歌唱や身体表現を伴う,④子どもにとって親しみのある生き物や人物が登場する,⑤手軽に入手できる,⑥生活に密着している,等が求められると考えられた。幼児期の防災教育における今後の教材開発に関する課題は,被災経験を有さない多くの子どもに対する現実味のある防災教育を実現させること,自然災害が発生する簡単なメカニズムについて知的好奇心が高まる教材を開発すること,が挙げられた。
Keywords 幼児期 (Early childhood) 地震 (Earthquake) 防災教育 (Disaster Prevention Education) 教材 (Teaching Materials) 条件 (Requirements)
Publication Title Bulletin of Center for Teacher Education and Development, Okayama University
Published Date 2023-03-30
Volume volume13
Start Page 357
End Page 371
ISSN 2186-1323
language Japanese
Copyright Holders Copyright © 2023 岡山大学教師教育開発センター
File Version publisher
FullText URL cted_013_all.pdf
Publication Title Bulletin of Center for Teacher Education and Development, Okayama University
Published Date 2023-03-30
Volume volume13
ISSN 2186-1323
language Japanese
Copyright Holders Copyright © 2023 岡山大学教師教育開発センター
File Version publisher
FullText URL bfsc_041_pre.pdf
Author 吉田 裕一|
Publication Title Bulletin of the Field Science Center, Faculty of Agriculture, Okayama University
Published Date 2019-04-01
Volume volume41
Start Page i
End Page i
ISSN 0910-8742
language Japanese
Copyright Holders 岡山大学農学部
File Version publisher
Title Alternative Biyō Kokugaku Kiroku (School records of the Okayama han in the Edo period) (2)
JaLCDOI 10.18926/64204
FullText URL jdc_002_065.pdf
Author KURACHI, Katsunao|
Amo Type 資料翻刻 (Materials and data)
Publication Title Dynamics of Civilizations
Published Date 2023-03-25
Volume volume2
Publisher 岡山大学文明動態学研究所
Start Page 65
End Page 155
ISSN 2436-8326
Content Type Journal Article
language Japanese
Copyright Holders ©2023 by RIDC
File Version publisher
FullText URL K0006721_abstract_review.pdf K0006721_fulltext.pdf
Author MORIWAKI, Takuya|
Published Date 2022-09-22
Content Type Thesis or Dissertation
Grant Number 甲第6721号
Granted Date 2022-09-22
Thesis Type Doctor of Philosophy in Engineering
Grantor 岡山大学
language Japanese
FullText URL K0006677_abstract_review.pdf K0006677_fulltext.pdf
Author Moriuchi, Yasushi|
Published Date 2022-03-25
Content Type Thesis or Dissertation
Grant Number 甲第6677号
Granted Date 2022-03-25
Thesis Type Doctor of Philosophy in Business Administration
Grantor 岡山大学
language Japanese
FullText URL K0006644_abstract_review.pdf K0006644_fulltext.pdf
Author Sakita, Koki|
Published Date 2022-03-25
Content Type Thesis or Dissertation
Grant Number 甲第6644号
Granted Date 2022-03-25
Thesis Type Doctor of Philosophy in Engineering
Grantor 岡山大学
language Japanese
FullText URL K0006627_abstract_review.pdf K0006627_fulltext.pdf
Author Onishi, Kozo|
Published Date 2022-03-25
Content Type Thesis or Dissertation
Grant Number 甲第6627号
Granted Date 2022-03-25
Thesis Type Doctor of Philosophy in Science
Grantor 岡山大学
language Japanese
FullText URL esr_028_cover_j.pdf
Publication Title Okayama University Earth Science Report
Published Date 2022-03-31
Volume volume28
Issue issue1
ISSN 1340-7414
language Japanese
Copyright Holders © 2022 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/ESR/63515
Title Alternative FDM simulation of long-period ground motions around Oita Prefecture, Japan, using a land-ocean unified 3D structure model
FullText URL esr_028_027_103.pdf
Author Okunaka, Tatsuya | Komatsu, Masanao| Takenaka, Hiroshi| Yoshimi, Masayuki| Nakamura, Takeshi| Okamoto, Taro|
Abstract Oita prefecture is located in northeastern part of Kyushu Island which is characterized by active subduction of the Philippine Sea plate (PHS) beneath the Eurasian plate and several active volcanoes along with the volcanic front. Oita area has frequently been damaged by large earthquakes and tsunamis since ancient times. From the point of view of disaster prevention, it is important to investigate the feasibility of strong ground motion prediction using realistic structural models. In this paper we use a land-ocean unified 3D (three-dimensional) structure model around Oita prefecture, which includes land and sea-floor topography and a seawater layer as well as subsurface structures of the arc side and the PHS slab to conduct the FDM (finite-difference method) simulations of strong ground motion in land and ocean areas for the 2015 Southern Oita, Japan, earthquake (MJMA5.7) whose hypocenter is located in the PHS slab. The simulated long-period (2–20 s) ground motions reproducing observed records demonstrate substantial contributions of thick low-velocity sediment layers in and around Beppu Bay and Oita basin to development of the motions. We also examine the topographic effects on the seismic motion by analyzing the simulation results to show the strong enhancement of the later phases.
Keywords strong motion Oita the 2015 Southern Oita earthquake long-period ground motion simulation finite-difference method topography
Publication Title Okayama University Earth Science Report
Published Date 2022-03-31
Volume volume28
Issue issue1
Start Page 27
End Page 103
ISSN 1340-7414
language Japanese
Copyright Holders © 2022 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/OER/63490
Title Alternative Development and Application of Regional Employment Input-Output Model
FullText URL oer_053_3_103_126.pdf
Author 中村 良平| 長宗 武司|
Abstract 地域振興を目指す地方自治体にとっての関心事は,生産額や所得以上に雇用であるといえよう。特に,人口減少時代においては,その重要度は高まってきている。
地域産業連関表においては,雇用係数を用いて最終需要の変化に対する雇用誘発効果を産業部門別に求めることができる。しかしながら,どういった経路を経て雇用が変化していくのかを検証することは出来ない。それを見るには雇用係数に基づく逆行列を作成する必要がある。
本研究では,生産者価格表示の競争移入型の地域産業連関表を雇用者数で把えたモデルに置き換え,それによって需要の変化による雇用者への影響について,他産業からの間接効果を見ることができるようにモデルを転換する。また消費内生化モデルとすることで,雇用効果を「レオンチェフ(生産波及)効果」と「ケインズ(所得・支出)効果」に分離することを可能としている。これらによって,産業別に雇用波及プロセスの異なりが明らかになり,地方自治体の総合戦略の実践や今後の政策立案にとって大いに寄与するものとなる。
Publication Title Okayama Economic Review
Published Date 2022-05-20
Volume volume53
Issue issue3
Start Page 103
End Page 126
ISSN 2433-4146
language Japanese
Copyright Holders Copyright © 2022 岡山大学経済学会
File Version publisher
Title Alternative Accepting the East Japan Triple Disaster Evacuees: An Analysis of Okayama Prefectural Assembly Members’ Roles
FullText URL olj_71_3-4_519_534.pdf
Author Osawa, K.|
Publication Title Okayama Law Journal
Published Date 2022-03-18
Volume volume71
Issue issue3・4
Start Page 534
End Page 519
ISSN 0386-3050
language Japanese
File Version publisher
JaLCDOI 10.18926/63329
Title Alternative Die Reichweite,,des Wechsels" -ÜÜber,,Das Erdbeben in Chili" von Heinrich von Kleist-
FullText URL biess_6_033_046.pdf
Author Sugibayashi, Noriaki |
Abstract ハインリッヒ・フォン・クライストの小説『チリの地震』の結末には、亡くした子の埋め合わせとして、その死の元凶となった子を養子にする親の姿が描かれている。本稿は、この埋め合わせを始めとして小説でくり返される〈交換〉について考察したものである。『小説集』版で採用されている三段落構成に対応する形で、〈平等〉を描いた第二段落を中心に〈交換〉の不可能性と可能性が〈取り違え〉といった形で変奏されつつ対称的に表されている。身分の違いもなく誰もが〈平等〉となる状況を経て、通常〈交換〉不可能だと思われるもの、一個人でさえもが〈交換〉の対称となっている。
Keywords 交換 等価性 平等 位置 取り違え 転倒
Publication Title Bulletin of Institute for Education and Student Services, Okayama University
Published Date 2021-12-30
Volume volume6
Start Page 33
End Page 46
ISSN 2432-9665
language Japanese
File Version publisher
FullText URL biess_6_contents.pdf
Publication Title Bulletin of Institute for Education and Student Services, Okayama University
Published Date 2021-12-30
Volume volume6
ISSN 2432-9665
language Japanese
File Version publisher
JaLCDOI 10.18926/63114
Title Alternative Telework Adoption Survey Report : A questionnaire conducted with companies in Okayama
FullText URL hss_052_099.pdf
Author MORIUCHI, Yasushi|
Publication Title Journal of Humanities and Social Sciences
Published Date 2021-12-24
Volume volume52
Start Page 99
End Page 119
ISSN 1881-1671
language Japanese
Copyright Holders Copyright (c) 2021 岡山大学大学院社会文化科学研究科
File Version publisher