Why do aftershocks occur? Relationship between mainshock rupture and aftershock sequence based on highly resolved hypocenter and focal mechanism distributions
Available in National Diet Library
Find on the publisher's website
NDL Digital Collections
Digital data available
Check on the publisher's website
DOI[10.1186/s40623-017-0650-2]to the data of the same series
Holdings of Libraries in Japan
This page shows libraries in Japan other than the National Diet Library that hold the material.
Please contact your local library for information on how to use materials or whether it is possible to request materials from the holding libraries.
other
CiNii Research
Search ServiceDigitalYou can check the holdings of institutions and databases with which CiNii Research is linked at the site of CiNii Research.CiNii Research
Search ServicePaperYou can check the holdings of institutions and databases with which CiNii Research is linked at the site of CiNii Research.
Bibliographic Record
You can check the details of this material, its authority (keywords that refer to materials on the same subject, author's name, etc.), etc.
- Material Type
- 記事
- Author/Editor
- Yohei YukutakeYoshihisa Iio
- Publication, Distribution, etc.
- Publication Date
- 2017-05-15
- Publication Date (W3CDTF)
- 2017-05-15
- Periodical title
- EPS : Earth, Planets and Space
- No. or year of volume/issue
- 69(68)
- Volume
- 69(68)
- ISSN (Periodical Title)
- 1880-5981
- ISSN-L (Periodical Title)
- 1343-8832
- Text Language Code
- eng
- DOI
- 10.1186/s40623-017-0650-2
- Persistent ID (NDL)
- info:ndljp/pid/10369095
- 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)
- 2017-06-22T22:40:19+09:00
- Date Captured (W3CDTF)
- 2017-06-22
- 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.
- In order to clarify the origin of aftershocks, we precisely analyze the hypocenters and focal mechanisms of the aftershocks following the 2000 Western Tottori Earthquake, which occurred in the western part of Japan, using data from dense seismic observations. We investigate whether aftershocks occur on the mainshock fault plane on which coseismic slip occurred or they represent the rupture of fractures surrounding the mainshock fault plane. Based on the hypocenter distribution of the aftershocks, the subsurface fault structure of the mainshock is estimated using principal component analysis. As a result, we can obtain the detail fault structure composed of 8 best-fit planes. We demonstrate that the aftershocks around the mainshock fault are distributed within zones of 1.0–1.5 km in thicknesses, and their focal mechanisms are significantly diverse. This result suggests that most of the aftershocks represent the rupture of fractures surrounding the mainshock fault rather than the rerupture of the mainshock fault. The aftershocks have a much wider zone compared with the exhumed fault zone in field observations, suggesting that many aftershocks occur outside the fault damage zone. We find that most aftershocks except in and around the large-slip region are well explained by coseismic stress changes. These results suggest that the thickness of the aftershock distribution may be controlled by the stress changes caused by the heterogeneous slip distribution during the mainshock. The aftershock is also distributed within a much wider zone than the hypocenter distribution observed in swarm activity in the geothermal region, which is thought to be caused by the migration of hydrothermal fluid. This result implies a difference in generation processes: Stress changes due to the mainshock contribute primarily to the occurrence of aftershocks, whereas earthquake swarms in the geothermal region are caused by fluid migration within the localized zone.
- DOI
- 10.1186/s40623-017-0650-2
- 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
- Crustal dynamics: unified understanding of geodynamic processes at different time and length scalesStress relaxation arrested the mainshock rupture of the 2016 Central Tottori earthquakeInelastic strain in the hypocentral region of the 2000 Western Tottori earthquake (M 7.3) inferred from aftershock seismic moment tensorsConjugate faulting and structural complexity on the young fault system associated with the 2000 Tottori earthquakeMainshock and Aftershock Sequence Simulation in Geometrically Complex Fault ZonesEstimation of the heterogeneity of stress fields using misfit angles in focal mechanismsAftershock characteristics of the 2024 Noto Peninsula earthquake (Mw7.5) through centroid moment tensor analysis using a 3-D seismic velocity structure modelA Bayesian Approach to Estimating a Spatial Stress Pattern From <i>P</i> Wave First‐Motions超多点稠密地震観測による断層帯発達過程の解明に向けてThe Advancement of Research on Inland Earthquake Generation 2014–2018Stationarity of aftershock activities of the 2016 Central Tottori Prefecture earthquake revealed by dense seismic observationDetermination of the dipping direction of a blind reverse fault from InSAR : case study on the 2017 Sefid Sang earthquake, northeastern Iran
- References
- Faulting Induced by Forced Fluid Injection and Fluid Flow Forced by Faulting: An Interpretation of Hydraulic-Fracture Microseismicity, Carthage Cotton Valley Gas Field, TexasA Double-Difference Earthquake Location Algorithm: Method and Application to the Northern Hayward Fault, CaliforniaApparent break in earthquake scaling due to path and site effects on deep borehole recordingsSurface deformation due to shear and tensile faults in a half-spaceEstimation of the stress field in the region of the 2000 Western Tottori Earthquake: Using numerous aftershock focal mechanismsFluid-induced swarm earthquake sequence revealed by precisely determined hypocenters and focal mechanisms in the 2009 activity at Hakone volcano, JapanThe nature and origin of off-fault damage surrounding strike-slip fault zones with a wide range of displacements: A field study from the Atacama fault system, northern ChileMaximum-likelihood estimation of hypocenter with origin time eliminated using nonlinear inversion techniqueFine fault structure of a moderate earthquake in the 2007 earthquake sequence of Northern Mie, JapanThe process zone: A microstructural view of fault growthStatic Coulomb failure function and aftershocks of 1995 Kobe earthquake: A statistical testAnalysis of similar event clusters in aftershocks of the 1994 Northridge, California, earthquakeAftershocks driven by a high-pressure CO2 source at depthA Structural Interpretation of the Aftershock "Cloud" of the 1992 Mw 7.3 Landers EarthquakeSpatial relation between main earthquake slip and its aftershock distribution3-D rotation of double-couple earthquake sourcesImproving local earthquake locations using the L1 norm and waveform cross correlation: Application to the Whittier Narrows, California, aftershock sequenceEarthquake source parameters determined by the SAFOD Pilot Hole seismic arrayA shallow fault-zone structure illuminated by trapped waves in the Karadere-Duzce branch of the North Anatolian Fault, western TurkeyDetailed Fault Structure of the 2000 Western Tottori, Japan, Earthquake SequenceA review of recent developments concerning the structure, mechanics and fluid flow properties of fault zonesSeismic and geodetic evidence for extensive, long-lived fault damage zonesLocal stress concentration in the seismic belt along the Japan Sea coast inferred from precise focal mechanisms: Implications for the stress accumulation process on intraplate earthquake faultsDisplay and quantitative assessment of distributions of earthquake focal mechanismsEarthquakes Induced by the Stimulation of an Enhanced Geothermal System below Basel (Switzerland)Imaging the source region of the 2004 mid‐Niigata prefecture earthquake and the evolution of a seismogenic thrust‐related foldAftershock distribution of the 2004 Mid Niigata Prefecture Earthquake derived from a combined analysis of temporary online observations and permanent observationsHigh resolution 3-D velocity structure in the source region of the 2000 Western Tottori Earthquake in the southwestern Honshu, Japan using very dense aftershock observationsThe seismicity, fault structures, and stress field in the seismic gap adjacent to the 2004 Mid-Niigata earthquake inferred from seismological observationsThe 2000 Western Tottori Earthquake—Seismic activity revealed by the regional seismic networks—
- 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CrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossref
- Bibliographic ID (NDL)
- 10369095
- NAID
- 120006364096