1.中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室,湖北 武汉,430071
2.中国地质大学(武汉)地球物理与空间信息学院,湖北 武汉,430074
孙和平,博士,研究员,中国科学院院士,现从事地震与地球内部物理方向研究。heping@whigg.ac.cn
收稿:2026-01-25,
纸质出版:2026-08-05
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孙和平,张一君,郭汝梦,等.密集台阵反投影成像地震破裂过程研究综述[J].武汉大学学报(信息科学版),2026,51(8):1528-1536.
SUN Heping,ZHANG Yijun,GUO Rumeng,et al.Review of Dense Array Backprojections of Earthquake Rupture Process[J].Geomatics and Information Science of Wuhan University,2026,51(8):1528-1536.
孙和平,张一君,郭汝梦,等.密集台阵反投影成像地震破裂过程研究综述[J].武汉大学学报(信息科学版),2026,51(8):1528-1536. DOI:10.13203/j.whugis20250286
SUN Heping,ZHANG Yijun,GUO Rumeng,et al.Review of Dense Array Backprojections of Earthquake Rupture Process[J].Geomatics and Information Science of Wuhan University,2026,51(8):1528-1536. DOI:10.13203/j.whugis20250286
利用密集台阵反投影成像地震破裂过程是认识震源物理性质、理解断层能量释放规律、探究断层结构的重要手段。对密集台阵反投影成像技术近年来的发展及其应用上的进展进行了综述和分析。结合国内外地球物理学者对不同构造环境下地震多尺度时空破裂行为的系列工作,着重介绍了该方法在解析同震破裂过程和探究震源频率特征中的重要作用,并结合该方法的优势对其未来发展方向进行了分析和展望。
Backprojection imaging with dense arrays serves as a vital tool for investigating earthquake source physics
characterizing seismic energy release patterns
and constraining fault structures. This technique generates timely
robust rupture images by tracking the spatiotemporal migration of seismic radiation through phase-aligned coherent wavefields recorded by dense networks
with the advantage of least prior constraints. With the deployment of dense seismic networks (Hi-Net array (Japan)
USArray (USA)
Australia array (AU)
etc.) around the globe
this method has been widely applied to earthquakes in diverse tectonic settings
including subduction zones (e.g. 2011 Tohoku earthquake)
continental interiors (e.g. 2021 Maduo earthquake)
and transform boundaries (e.g. 2023 Kahramanmaraş earthquake doublet). These studies provide a unique perspective for unraveling the complex and multi-scale rupture processes of large earthquakes. Furthermore
they reveal a ubiquitous frequency-dependent radiation style among subduction earthquakes
shedding light on seismic radiation patterns in similar tectonic environments.This paper reviews recent methodological developments and applications of this technique. Methodological advances primarily focus on four key areas: the formulation of the waveform contribution term
the correction of seismic phase travel times
the application of array waveform processing techniques
and the design of weighting schemes. Different formulations of the waveform contribution term serve to amplify the signals of interest. For instance
a function based on waveform cross-correlation can enhance the resolution of neighboring weak subevents
which are often obscured by their low amplitudes in raw waveform data. The correction of travel times is necessary due to the difference between the assumed 1D velocity model and the real 3D velocity structure. Various array waveform processing techniques can further improve the spatiotemporal resolution of backprojection results. A weighting term scales the contribution of each station
thereby mitigating biases from uneven station distribution or anomalous waveform amplitudes.By synthesizing studies on earthquake ruptures across diverse tectonic settings
we highlight its critical contributions to resolve coseismic rupture process and seismic radiation characteristics. For example
the backprojection imaging results for the 2012 Sumatra earthquake indicate a complex rupture path
with the rupture propagating on different fault planes within an orthogonal conjugate fault system. Back-projection results for subduction-zone earthquakes
such as the 2011 Mw 9.0 Tohoku event
reveal a ubiquitous frequency-dependent radiation pattern related to depth-varying frictions along subduction plates.Finally
potential future directions are discussed based on the method's unique advantages. Integrating machine learning with the backprojection method allows for the extraction of more subtle features from seismic waveforms
advancing the detection and location of small earthquakes. Furthermore
multi-scale rupture behaviors of earthquakes in diverse tectonic settings are to be investigated using backprojection results across a broad frequency range.
ALLMANN B P , SHEARER P M . A High-Frequency Secondary Event During the 2004 Parkfield Earthquake [J]. Science , 2007 , 318 ( 5854 ): 1279 - 1283 .
AVOUAC J P , MENG L S , WEI S J , et al . Lower Edge of Locked Main Himalayan Thrust Unzipped by the 2015 Gorkha Earthquake [J]. Nature Geoscience , 2015 , 8 ( 9 ): 708 - 711 .
BESKARDES G D , HOLE J A , WANG K , et al . A Comparison of Earthquake Backprojection Imaging Methods for Dense Local Arrays [J]. Geophysical Journal International , 2018 , 212 ( 3 ): 1986 - 2002 .
BAYSAL E , KOSLOFF D D , SHERWOOD J W C . Reverse Time Migration [J]. Geophysics , 1983 , 48 ( 11 ): 1514 - 1524 .
CLAERBOUT J F , DOHERTY S M . Downward Continuation of Moveout-Corrected Seismograms [J]. Geophysics , 1972 , 37 ( 5 ): 741 - 768 .
ABRAHAMSON N A . Estimation of Seismic Wave Coherency and Rupture Velocity Using the SMART 1 Strong Motion Array Recordings [D]. Berkeley : University of California , 1985 .
ISHII M , SHEARER P M , HOUSTON H , et al . Extent, Duration and Speed of the 2004 Sumatra–Andaman Earthquake Imaged by the Hi-Net Array [J]. Nature , 2005 , 435 ( 7044 ): 933 - 936 .
MENG L , AMPUERO J P , STOCK J , et al . Earthquake in a Maze: Compressional Rupture Branching During the 2012 Mw 8.6 Sumatra Earthquake [J]. Science , 2012 , 337 ( 6095 ): 724 - 726 .
WEI S J , ZENG H Y , SHI Q B , et al . Simultaneous Rupture Propagation Through Fault Bifurcation of the 2021 Mw 7.4 Maduo Earthquake [J]. Geophysical Research Letters , 2022 , 49 ( 21 ): e2022GL100283 .
ZHANG Y J , TANG X W , LIU D C , et al . Geometric Controls on Cascading Rupture of the 2023 Kahramanmaraş Earthquake Doublet [J]. Nature Geoscience , 2023 , 16 ( 11 ): 1054 - 1060 .
FENG T , MENG L S , HUANG H . Detecting Offshore Seismicity: Combining Backprojection Imaging and Matched-Filter Detection [J]. Journal of Geophysical Research: Solid Earth , 2020 , 125 ( 8 ): e2020JB019599 .
PALO M , TILMANN F , KRUGER F , et al . High-Frequency Seismic Radiation from Maule Earthquake (Mw 8.8, 2010 February 27) Inferred from High-Resolution Backprojection Analysis [J]. Geophysical Journal International , 2014 , 199 ( 2 ): 1058 - 1077 .
ZENG H Y , WEI S J , ROSAKIS A . A Travel-Time Path Calibration Strategy for Back-Projection of Large Earthquakes and Its Application and Validation Through the Segmented Super-Shear Rupture Imaging of the 2002 Mw 7.9 Denali Earthquake [J]. Journal of Geophysical Research: Solid Earth , 2022 , 127 ( 6 ): e2022JB024359 .
MENG L S , ZHANG A L , YAGI Y . Improving back Projection Imaging with a Novel Physics-Based Aftershock Calibration Approach: A Case Study of the 2015 Gorkha Earthquake [J]. Geophysical Research Letters , 2016 , 43 ( 2 ): 628 - 636 .
ZHANG Y J , BAO H , MENG L S , et al . Understanding and Mitigating the Spatial Bias of Earthquake Source Imaging with Regional Slowness Enhanced Back-Projection [J]. Journal of Geophysical Research: Solid Earth , 2023 , 128 ( 5 ): e2022JB025525 .
SONG C , GE Z X . 3D Model Backprojection of the 2017 Mw 8.2 Chiapas Earthquake: A Two-Stage Rupture with a Barrier-Induced Velocity Increase [J]. Seismological Research Letters , 2019 , 90 ( 3 ): 1121 - 1130 .
MENG L S , INBAL A , AMPUERO J P . A Window into the Complexity of the Dynamic Rupture of the 2011 Mw 9 Tohoku-Oki Earthquake [J]. Geophysical Research Letters , 2011 , 38 ( 7 ): L00G07 .
FESTA G , ZOLLO A . Fault Slip and Rupture Velocity Inversion by Isochrone Backprojection [J]. Geophysical Journal International , 2006 , 166 ( 2 ): 745 - 756 .
ROTEN D , MIYAKE H , KOKETSU K . A Rayleigh Wave Back-Projection Method Applied to the 2011 Tohoku Earthquake [J]. Geophysical Research Letters , 2012 , 39 ( 2 ): 2011GL050183 .
SUFRI O , KOPER K D , HUTKO A R , et al . Imaging the Rupture of the 27 February 2010 Chile (Mw 8.8) Earthquake via Backprojection of P, PP, and PKP Waves [J]. Journal of Geophysical Research , 2012 , 117 : B02308 .
CHEN Y , MENG L S , ZHANG A L , et al . Source Complexity of the 2015 Mw 7.9 Bonin Earthquake [J]. Geochemistry, Geophysics, Geosystems , 2018 , 19 ( 7 ): 2109 - 2120 .
WANG D , TAKEUCHI N , KAWAKATSU H , et al . Estimating High Frequency Energy Radiation of Large Earthquakes by Image Deconvolution Back-Projection [J]. Earth and Planetary Science Letters , 2016 , 449 : 155 - 163 .
ISHII M . High-Frequency Rupture Properties of the Mw 9.0 off the Pacific Coast of Tohoku Earthquake [J]. Earth, Planets and Space , 2011 , 63 ( 7 ): 18 .
YAGI Y , NAKAO A , KASAHARA A . Smooth and Rapid Slip near the Japan Trench During the 2011 Tohoku-Oki Earthquake Revealed by a Hybrid Back-Projection Method [J]. Earth and Planetary Science Letters , 2012 , 355/356 : 94 - 101 .
HONDA R , AOI S , SEKIGUCHI H , et al . Imaging an Asperity of the 2003 Tokachi-Oki Earthquake Using a Dense Strong-Motion Seismograph Network [J]. Geophysical Journal International , 2008 , 172 ( 3 ): 1104 - 1116 .
WALKER K T , SHEARER P M . Illuminating the Near-Sonic Rupture Velocities of the Intracontinental Kokoxili Mw 7.8 and Denali Fault Mw 7.9 Strike-Slip Earthquakes with Global P Wave back Projection Imaging [J]. Journal of Geophysical Research: Solid Earth , 2009 , 114 ( B2 ): 2008 JB005738.
YAMAMOTO Y , TAKENAKA H . High-Resolution Imaging of Rupture Process of the 2005 Fukuoka Earthquake (Mw 6.6 )[C]// AGU Fall Meeting 2026 , San Francisco, CA , 2006 .
TAN F Z , GE Z X , KAO H , et al . Validation of the 3-D Phase-Weighted Relative back Projection Technique and Its Application to the 2016 Mw 7.8 Kaikōura Earthquake [J]. Geophysical Journal International , 2019 , 217 ( 1 ): 375 - 388 .
MENG L , AMPUERO J P , SLADEN A , et al . High-Resolution Backprojection at Regional Distance: Application to the Haiti M 7.0 Earthquake and Comparisons with Finite Source Studies [J]. Journal of Geophysical Research: Solid Earth , 2012 , 117 ( B4 ): 2011 JB008702.
KOPER K D , HUTKO A R , LAY T , et al . Imaging Short-Period Seismic Radiation from the 27 February 2010 Chile (Mw 8.8) Earthquake by Back-Projection of P, PP, and PKIKP Waves [J]. Journal of Geophysical Research: Solid Earth , 2012 , 117 ( B2 ): 2011 JB008576.
KEHOE H L , KISER E D , OKUBO P G . The Rupture Process of the 2018 Mw 6.9 Hawaii Earthquake as Imaged by a Genetic Algorithm-Based Back-Projection Technique [J]. Geophysical Research Letters , 2019 , 46 ( 5 ): 2467 - 2474 .
ROESSLER D , KRUEGER F , OHRNBERGER M , et al . Rapid Characterisation of Large Earthquakes by Multiple Seismic Broadband Arrays [J]. Natural Hazards and Earth System Sciences , 2010 , 10 ( 4 ): 923 - 932 .
PULIDO N , AOI S , FUJIWARA H . Rupture Process of the 2007 Notohanto Earthquake by Using an Isochrones Back-Projection Method and K-NET/KiK-net Data [J]. Earth, Planets and Space , 2008 , 60 ( 10 ): 1035 - 1040 .
JAKKA R S , COCHRAN E S , LAWRENCE J F . Earthquake Source Characterization by the Isochrone back Projection Method Using Near-Source Ground Motions [J]. Geophysical Journal International , 2010 , 182 ( 2 ): 1058 - 1072 .
FAN W Y , SHEARER P M , JI C , et al . Multiple Branching Rupture of the 2009 Tonga-Samoa Earthquake [J]. Journal of Geophysical Research: Solid Earth , 2016 , 121 ( 8 ): 5809 - 5827 .
VERA F , TILMANN F , SAUL J . A Decade of Short-Period Earthquake Rupture Histories from Multi-array Back-Projection [J]. Journal of Geophysical Research: Solid Earth , 2024 , 129 ( 2 ): e2023JB027260 .
MCMECHAN G A , LUETGERT J H , MOONEY W D . Imaging of Earthquake Sources in Long Valley Caldera, California, 1983 [J]. Bulletin of the Seismological Society of America , 1985 , 75 : 1005 - 1020 .
LAY T , KANAMORI H . An Asperity Model of Large Earthquake Sequences [M]// Earthquake Prediction . Washington D C : American Geophysical Union , 2013 : 579 - 592 .
XU L W , MENG L S , XU W B , et al . Unzipping of the Conjugate Fault System During the 2024 Mw 7.4 Hualien Earthquake [J]. Geophysical Research Letters , 2025 , 52 ( 13 ): e2025GL115218 .
HICKS S P , OKUWAKI R , STEINBERG A , et al . Back-Propagating Supershear Rupture in the 2016 Mw 7.1 Romanche Transform Fault Earthquake [J]. Nature Geoscience , 2020 , 13 ( 9 ): 647 - 653 .
FREUND L B . The Mechanics of Dynamic Shear Crack Propagation [J]. Journal of Geophysical Research: Solid Earth , 1979 , 84 ( B5 ): 2199 - 2209 .
DUNHAM E M , ARCHULETA R J . Near-Source Ground Motion from Steady State Dynamic Rupture Pulses [J]. Geophysical Research Letters , 2005 , 32 ( 3 ): 2004GL021793 .
王松 , 朱守彪 . 断层破裂速度对地震动及其地震灾害影响的有限单元法模拟 [J]. 地球物理学报 , 2022 , 65 ( 2 ): 686 - 697 .
WANG Song , ZHU Shoubiao . Finite Element Method Simulations of the Influences of Fault Rupture Velocities on Ground Motions and Seismic Hazards [J]. Chinese Journal of Geophysics , 2022 , 65 ( 2 ): 686 - 697 .
BAO H , XU L W , MENG L S , et al . Global Frequency of Oceanic and Continental Supershear Earthquakes [J]. Nature Geoscience , 2022 , 15 ( 11 ): 942 - 949 .
KAMMER D S , MCLASKEY G C , ABERCROMBIE R E , et al . Earthquake Energy Dissipation in a Fracture Mechanics Framework [J]. Nature Communications , 2024 , 15 : 4736 .
LIU W , YAO H J , WEI S J . Frequency-Dependent Rupture Characteristics of the 30 October 2016 Mw 6.5 Norcia, Italy Earthquake Inferred from Joint Multi-scale Slip Inversion [J]. Journal of Geophysical Research: Solid Earth , 2021 , 126 ( 5 ): e2020JB020706 .
KOKETSU K , YOKOTA Y , NISHIMURA N , et al . A Unified Source Model for the 2011 Tohoku Earthquake [J]. Earth and Planetary Science Letters , 2011 , 310 ( 3/4 ): 480 - 487 .
OKUWAKI R , YAGI Y . Role of Geometric Barriers in Irregular-Rupture Evolution During the 2008 Wenchuan Earthquake [J]. Geophysical Journal International , 2018 , 212 ( 3 ): 1657 - 1664 .
DI LUCCIO F , VENTURA G , DI GIOVAMBATTISTA R , et al . Normal Faults and Thrusts Reactivated by Deep Fluids: The 6 April 2009 Mw 6.3 L’Aquila Earthquake, Central Italy [J]. Journal of Geophysical Research: Solid Earth , 2010 , 115 ( B6 ): 2009 JB007190.
YIN J X , YAO H J . Rupture and Frequency-Dependent Seismic Radiation of the 2012 Mw 8.6 Sumatra Strike-Slip Earthquake [J]. Geophysical Journal International , 2016 , 205 ( 3 ): 1682 - 1693 .
LI B , WU B N , BAO H , et al . Rupture Heterogeneity and Directivity Effects in Back-Projection Analysis [J]. Journal of Geophysical Research: Solid Earth , 2022 , 127 ( 3 ): e2021JB022663 .
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