Dr. Sidao Ni, professor of Geophysics, Institute of Geodesy and Geophysics

Telephone: 02786780371
Address:  340 Xudong road, Wuhan, Hubei,China

Postcode: 430087

Research Areas

I am interested in seismological studies, including, Earthquake parameters and rupture processes; Internal structure of the Earth and geodynamics;


1988-1993,  University of Science and Technology of China, BS

1993-1996, University of Science and Technology of China, MS

1996-2001, California Institute of Technology


Ph.D of Geophysics

Work Experience

2001-2004,  Seismological Laboratory, California Institute of Technology

2004-2009, University of Science and Technology of China

2010-now,  Institute of Geodesy and Geophysics, Chinese Academy of Sciences


  1. Guo AZ, Ni SD*, Xie J, Freymueller JT, Wang Y, Zhang BL, Yu ZY, Yao YX, Ma WJ. Millimeter-level ultra-long period multiple Earth-circling surface waves retrieved from dense high-rate GPS network. EARTH AND PLANETARY SCIENCE LETTERS. 525, 2019: 115705.

  1. Zang C, Ni SD*, Shen ZC. Rupture Directivity Analysis of the 2018 Hokkaido Eastern Iburi Earthquake and Its Seismotectonic Implication. SEISMOLOGICAL RESEARCH LETTERS, 90(6), 2019: 2121-2131.

  1. Xu HL, Ni SD*, Liu WX, Zhu HF, Wang XL. Focal mechanisms of the 2017 North Korean nuclear test and its early collapse event. GEOPHYSICAL JOURNAL INTERNATIONAL, 2019.

  1. Ding SB, Ni SD*, Kim YH, He XH. Constraints on crust-mantle transition zone with Pn waveforms: A case study of eastern China and southern Korean Peninsula. PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 289, 2019: 11-19.

  1. He XH, Zhang PZ, Ni SD, Zheng WJ. Resolving Focal Depth in Sparse Network with Local Depth Phase sPL: A Case Study for the 2011 Mineral, Virginia, Earthquake Sequence. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, 109(2), 2019: 745-755.

  1. Zhang BL, Ni SD*, Sun DY. Seismological Constraints on the Small‐scale Heterogeneity in the Lowermost Mantle Beneath East Asia and Implication for its Mineralogical Origin. GEOPHYSICAL RESEARCH LETTERS, 2019, 46.

  1. Wu WB, Ni SD*, Irving Jessica CE. Inferring Earth’s discontinuous chemical layering from the 660-kilometer boundary topography. SCIENCE. 363(6428), 2019: 736-740.

  1. Ojo AO, Ni SD*, Xie J, Zhao L. Further constraints on the shear wave velocity structure of Cameroon from joint inversion of receiver function, Rayleigh wave dispersion and ellipticity measurements. GEOPHYSICAL JOURNAL INTERNATIONAL. 217 (1), 2019: 589-619. 

  1. Xie J, Ni SD*. Imaging 3D Upper‐Mantle Structure with Autocorrelation of Seismic Noise Recorded on a Transportable Single Station. SEISMOLOGICAL RESEARCH LETTERS. 90 (2A), 2019: 708-715. 

  1. Zhu W, Ni SD*, Zeng XF, Somerville P. The Contribution of Postcritical Moho Reflections SmS to Ground Motions of the 2008  Mw7.9 Wenchuan Earthquake. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA. 109(1), 2019: 298-311.

  1. Meng QJ, Ni SD*, Guo AZ, Zhou Y. Ground Surface Deformation Caused by the M-w 5.8 Early Strong Aftershock following the 13 November 2016 Mw 7.8 Kaikoura Mainshock. SEISMOLOGICAL RESEARCH LETTERS. 89(6), 2018: 2214-2226.

  1. Wu WB, Ni SD*, Zhan ZW, Wei SJ. An SEM-DSM three-dimensional hybrid method for modelling teleseismic waves with complicated source-side structures. GEOPHYSICAL JOURNAL INTERNATIONAL. 215(1), 2018: 133-154.

  1. Dong YB, Ni SD*, Yuen DA, Li ZW. Crustal Rheology from Focal Depths in the North China Basin. EARTH AND PLANETARY SCIENCE LETTERS. 497, 2018: 123-138. 

  1. Chen HP, Ni SD*, Chu RS, Chong JJ, Liu ZK, Zhu LB. Influence of the off-great-circle propagation of Rayleigh waves on event-based surface wave tomography in Northeast China. GEOPHYSICAL JOURNAL INTERNATIONAL. 214(2), 2018: 1105-1124.

  1. Xia YJ, Ni SD*, Tape C. Multipathing Rayleigh Waves from Long-Distance Noise Cross Correlation along an Ocean-Continent Boundary (Alaska to California). GEOPHYSICAL RESEARCH LETTERS. 45(12), 2018: 6051-6060.

  1. Li ZW, Ni SD, Roecker S, Bao F, Wei X, Yuen DA. Seismic Imaging of Source Region in the 1976 M-s 7.8 Tangshan Earthquake Sequence and Its Implications for the Seismogenesis of Intraplate Earthquakes. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA. 108(3A), 2018: 1302-1313. 

  1. Zhang BL, Ni SD*, Sun DY, Shen ZC, Jackson JM, Wu WB. Constraints on small-scale heterogeneity in the lowermost mantle from observations of near podal PcP precursors. EARTH AND PLANETARY SCIENCE LETTERS. 489, 2018: 267-276.

  1. Ping P, Chu RS, Chong JJ, Ni SD, Zhang Y. Insight into large-scale topography on analysis of high-frequency Rayleigh waves. JOURNAL OF APPLIED GEOPHYSICS. 150, 2018: 1-10.

  1. Chong JJ, Chu RS, Ni SD, Meng QJ, Guo AZ. Receiver function HV ratio: a new measurement for reducing non-uniqueness of receiver function waveform inversion. GEOPHYSICAL JOURNAL INTERNATIONAL. 212(2), 2018: 1475-1485. 

  1. Ojo AO, Ni SD*, Chen HP, Xie J. Crust-mantle coupling mechanism in Cameroon, West Africa, revealed by 3D S-wave velocity and azimuthal anisotropy. PHYSICS OF THE EARTH AND PLANETARY INTERIORS. 274, 2018: 195-213.

  1. Xie J, Ni SD*, Chu RS, Xia YJ. Assessing the short-term clock drift of early broadband stations with burst events of the 26 s persistent and localized microseism. GEOPHYSICAL JOURNAL INTERNATIONAL. 212(1), 2018: 324-332.

  1. He XH, Ni SD, Zhang P, Freymueller JT. The 1 May 2017 British Columbia-Alaska Earthquake Doublet and Implication for Complexity Near Southern End of Denali Fault System. GEOPHYSICAL RESEARCH LETTERS. 45(12), 2018: 5937-5947.

  1. He XH, Ni SD. Resolving Horizontal Rupture Directivity of Moderate Crustal Earthquake in Sparse Network With Ambient Noise Location. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH. 123(1), 2018: 533-552.  

  1. Qian YY, Ni SD*, Wei SJ, Almeida R, Zhang H. The effects of core-reflected waves on finite fault inversions with teleseismic body wave data. GEOPHYSICAL JOURNAL INTERNATIONAL. 211(2), 2017: 936-951.

  1. He XH, Ni SD*. Rapid rupture directivity determination of moderate dip‐slip earthquakes with teleseismic body waves assuming reduced finite source approximation. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH. 122 (7), 2017, 5344-5368.

  1. Kim YH, He XH, Ni SD, Lim H, Park SC. Earthquake Source Mechanism and Rupture Directivity of the 12 September 2016 Mw 5.5 Gyeongju, South Korea, Earthquake. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA. 107(5), 2017: 2525-2531. 

  1. Zhang H, Ni SD*, Chu RS, Schmandt B. An algorithm for computing synthetic body waves due to underside conversion on an undulating interface and application to the 410 km discontinuity. GEOPHYSICAL JOURNAL INTERNATIONAL. 210(3), 2017: 1858-1871.

  1. Chen XW, Nakata N, Pennington C, Haffener J, Chang JC, He XH, Zhan ZW, Ni SD, Walter JI. The Pawnee earthquake as a result of the interplay among injection, faults and foreshocks. SCIENTIFIC REPORTS. 7, 2017: 4945.

  1. Wang HC, Ni SD, Jin P, Liu WX, Xu X, Pan CZ, Zhu HF, Xu HL. Anomalous Pn Amplitudes through the Southeastern Tarim Basin and Western Tien Shan along Two Profiles: Observations and Interpretations. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA. 107(2), 2017: 760-769.

  1. Lv Y, Ni SD, Chen L, Chen QF. Pn tomography with Moho depth correction from eastern Europe to western China. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH. 122(2), 2017: 1284-1301. 

  1. Ojo AO, Ni SD*, Li ZW. Crustal radial anisotropy beneath Cameroon from ambient noise tomography. TECTONOPHYSICS. 696, 2017: 37-51.

  1. Zheng LL, Lin JM, Ni SD, Zhu HH, Zheng H. Characteristics and generation mechanisms of double frequency microseisms generated by typhoons. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION. 60(1), 2017: 187-197. 

  1. Jia Z, Ni SD*, Chu RS, Zhan ZW. Joint Inversion for Earthquake Depths Using Local Waveforms and Amplitude Spectra of Rayleigh Waves. PURE AND APPLIED GEOPHYSICS. 174(1), 2017: 261-277. 

  1. Liu QX, Koper KD, Burlacu R, Ni SD, Wang FY, Zou CQ, Wei YH, Gal M, Reading AM. Source locations of teleseismic P, SV, and SH waves observed in microseisms recorded by a large aperture seismic array in China. EARTH AND PLANETARY SCIENCE LETTERS. 449, 2016: 39-47. 

  1. Zhou Y, Ni SD*, Chu RS, Yao HJ. Accuracy of the water column approximation in numerically simulating propagation of teleseismic PP waves and Rayleigh waves. GEOPHYSICAL JOURNAL INTERNATIONAL. 206(2), 2016: 1315-1326.

  1. Xie J, Yang YJ, Ni SD. On the accuracy of long-period Rayleigh waves extracted from ambient noise. GEOPHYSICAL JOURNAL INTERNATIONAL. 206(1), 2016: 48-55.

  1. Qian YY, Ni SD*. The effects of the core-reflected wave ScS on source parameters in inversion with teleseismic body waves. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION. 59(6), 2016: 2014-2027.

Research Interests

Rapid determination of earthquake parameters and seismic hazard assessement;   Topography of discontinuities inside the Earth and geodynamics; joint inversion of seismological and geodetic data



王向腾  硕士研究生  070801-固体地球物理学  

周勇  博士研究生  070801-固体地球物理学  

王向腾  博士研究生  070801-固体地球物理学  


陈俞霖  博士研究生  070801-固体地球物理学  

王烁帆  博士研究生  070801-固体地球物理学