Geomorphic features of surface ruptures associated with the 2016 Kumamoto earthquake in and around the downtown of Kumamoto City, and implications on triggered slip along active faults
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DOI[10.1186/s40623-017-0603-9]to the data of the same series
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- Material Type
- 記事
- Author/Editor
- Hideaki GotoHiroyuki TsutsumiShinji Toda
- Publication, Distribution, etc.
- Publication Date
- 2017-02-02
- Publication Date (W3CDTF)
- 2017-02-02
- Periodical title
- EPS : Earth, Planets and Space
- No. or year of volume/issue
- 69(26)
- Volume
- 69(26)
- ISSN (Periodical Title)
- 1880-5981
- ISSN-L (Periodical Title)
- 1343-8832
- Text Language Code
- eng
- DOI
- 10.1186/s40623-017-0603-9
- Persistent ID (NDL)
- info:ndljp/pid/10319677
- Collection
- Collection (Materials For Handicapped People:1)
- Collection (particular)
- 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他
- Acquisition Basis
- オンライン資料収集制度
- Date Accepted (W3CDTF)
- 2017-04-04T20:19:14+09:00
- Date Captured (W3CDTF)
- 2017-03-24
- Format (IMT)
- application/pdf
- Access Restrictions
- 国立国会図書館内限定公開
- Service for the Digitized Contents Transmission Service
- 図書館・個人送信対象外
- Availability of remote photoduplication service
- 可
- Periodical Title (URI)
- Periodical Title (Persistent ID (NDL))
- info:ndljp/pid/10319651
- Data Provider (Database)
- 国立国会図書館 : 国立国会図書館デジタルコレクション
- Summary, etc.
- The ~30-km-long surface ruptures associated with the M w 7.0 (M j 7.3) earthquake at 01:25 JST on April 16 in Kumamoto Prefecture appeared along the previously mapped ~100-km-long active fault called the Futagawa-Hinagu fault zone (FHFZ). The surface ruptures appeared to have extended further west out of the main FHFZ into the Kumamoto Plain. Although InSAR analysis by Geospatial Information Authority of Japan (GSI) indicated coseismic surface deformation in and around the downtown of Kumamoto City, the surface ruptures have not been clearly mapped in the central part of the Kumamoto Plain, and whether there are other active faults other than the Futagawa fault in the Kumamoto Plain remained unclear. We produced topographical stereo images (anaglyph) from 5-m-mesh digital elevation model of GSI, which was generated from light detection and ranging data. We interpreted them and identified that several SW-sloping river terraces formed after the deposition of the pyroclastic flow deposits related to the latest large eruption of the Aso caldera (86.8–87.3 ka) are cut and deformed by several NW-trending flexure scarps down to the southwest. These 5.4-km-long scarps that cut across downtown Kumamoto were identified for the first time, and we name them as the Suizenji fault zone. Surface deformation such as continuous cracks, tilts, and monoclinal folding associated with the main shock of the 2016 Kumamoto earthquake was observed in the field along the fault zone. The amount of vertical deformation (~0.1 m) along this fault associated with the 2016 Kumamoto earthquake was quite small compared to the empirically calculated coseismic slip (0.5 m) based on the fault length. We thus suggest that the slip on this fault zone was triggered by the Kumamoto earthquake, but the fault zone has potential to generate an earthquake with larger slip that poses a high seismic risk in downtown Kumamoto area.
- DOI
- 10.1186/s40623-017-0603-9
- Access Restrictions
- インターネット公開
- Rights (production)
- © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Related Material (URI)
- Is Referenced By
- Late quaternary slip rates and vectors on the Median Tectonic Line active fault zone in eastern Shikoku, southwest JapanStable isotopes show that earthquakes enhance permeability and release water from mountainsQuantitative assessment of the changes in regional water flow systems caused by the 2016 Kumamoto Earthquake using numerical modelingCoseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M<sub>w</sub> 7.0 Kumamoto EarthquakePost-seismic hydrochemical changes in regional groundwater flow systems in response to the 2016 Mw 7.0 Kumamoto earthquakeTopographic Anaglyphs from Detailed Digital Elevation Models Covering Inland and Seafloor for the Tectonic Geomorphology Studies in and around Yoron Island, Ryukyu Arc, JapanChanges in groundwater radon concentrations caused by the 2016 Kumamoto earthquakeMapping Aquifer Storage Properties Using S-Wave Velocity and InSAR-Derived Surface Displacement in the Kumamoto Area, Southwest JapanIdentification of changes in subsurface temperature and groundwater flow after the 2016 Kumamoto earthquake using long-term well temperature–depth profiles熊本地震など内陸大地震で見いだされた誘発性地表地震断層と短い活断層の評価2016年熊本地震で益城町の低地に生じた並走断層群を横断する反射法地震探査我が国における活断層研究の最近25年の成果と今後の展望SSHACレベル3ガイドラインに基づく伊方サイトでの震源特性モデルを活用した確率論的断層変位ハザード解析2016年熊本地震と布田川断層，地震地質災害トレンチ調査による阿蘇外輪山北西域の的石牧場I断層の変位の累積性の検討熊本市とその近郊域における地下水質の特徴と課題Repeated triggered ruptures on a distributed secondary fault system : an example from the 2016 Kumamoto earthquake, southwest JapanSubmarine terraces reveal Late Quaternary tectonic deformation in the intermediate zone between the island shelf and rift zone of the middle part of the Nanseishoto Islands, southwest JapanCharacteristics of secondary-ruptured faults in the Aso Caldera triggered by the 2016 Mw 7.0 Kumamoto earthquakeDetection of triggered shallow slips caused by large earthquakes using L-band SAR interferometry
- References
- Episodic growth of fault‐related fold in northern Japan observed by SAR interferometrySurface deformation due to shear and tensile faults in a half-spaceSlip on faults in the Imperial Valley triggered by the 4 April 2010 Mw 7.2 El Mayor-Cucapah earthquake revealed by InSARExtensive Area of Topographic Anaglyphs Covering Inland and Seafloor Derived Using a Detailed Digital Elevation Model for Identifying Broad Tectonic DeformationsRevised age and distribution of ca. 87ka Aso-4 tephra based on new evidence from the northwest Pacific Ocean数値標高モデルのステレオ画像を用いた活断層地形判読四国沖ピストンコア試料を用いたＡＴ火山灰噴出年代の再検討 タンデトロン加速器質量分析計による浮遊性有孔虫の｀１４´Ｃ年代阿そカルデラ西ろくの活断層群と側火口の位置熊本平野地下における第四系の最近１５万年間の沈降速度Small-displacement linear surface ruptures of the 2016 Kumamoto earthquake sequence detected by ALOS-2 SAR interferometryContinuity, segmentation and faulting type of active fault zones of the 2016 Kumamoto earthquake inferred from analyses of a gravity gradient tensor
- Data Provider (Database)
- 国立情報学研究所 : CiNii Research
- Original Data Provider (Database)
- 学術機関リポジトリデータベース雑誌記事索引データベースCrossrefCiNii Articles科学研究費助成事業データベース科学研究費助成事業データベース科学研究費助成事業データベースCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossref
- Bibliographic ID (NDL)
- 10319677
- NAID
- 120005997722