Miaki Ishii Miaki Ishii
Associate Professor of Earth and Planetary Sciences

Harvard Seismology Group
Department of Earth and Planetary Sciences
Harvard University


日本語(Japanese Version)

Research Interests

My main interest is to use recordings of seismic energy to image the internal structure of the Earth and to study properties of earthquakes. Just as X-ray (CAT scan) and MRI provide non-invasive ways of viewing the inside of human body, different geophysical data can be deciphered to obtain pictures of the Earth's interior without sending instruments deep down. Seismological observations are particularly suitable for such study, and allow us to see the internal structure from different angles. These data also contain clues about source of the energy, i.e., how the Earth slipped to cause earthquakes.

My current research projects can be found here.

Curriculum vitae

Education
2003 Ph.D. (Geophysics), Harvard University
1998 Hon.B.Sc. (Physics), University of Toronto

Professional Experience
2010-current Associate Professor of Earth and Planetary Sciences, Harvard University
2006-2010 Assistant Professor of Earth and Planetary Sciences, Harvard University
2003-2005 Green Scholar (Postdoctoral Fellow), Scripps Institution of Oceanography, UCSD
2003 Visiting Scientist, University of California Los Angeles
1994 Summer Intern, Chalk River National Laboratory, Atomic Energy of Canada Limited

Honours
2009 James B. Macelwane Medal, American Geophyical Union
2009 American Geophysical Union Fellow
2008 Charles F. Richter Early Career Award, Seismological Society of America
2007 Most Cited Authors, Physics of Earth and Planetary Interiors
2004 Alice Wilson Award, Royal Society of Canada
2000-2002 Julie Payette Scholar (Earth Sciences), Natural Sciences and Engineering Research Council of Canada
1999 Outstanding Student Paper Award, American Geophysical Union
1998 Outstanding Student Paper Award, American Geophysical Union
1995 Summer Research Studentship, Natural Sciences and Engineering Research Council of Canada
1994-1998 Canada Scholar, Industry Canada
Miaki <b>Ishii</b> Miaki <b>Ishii</b> Miaki <b>Ishii</b>

Publications

  • Kiser, E., Ishii, M., Langmuir, C.H., Shearer, P.M., & Hirose, H., 2011.
    Insights into the mechanism of intermediate-depth earthquakes from source properties as imaged by back-projection of multiple seismic phases.
    J. Geophys. Res., doi:10.1029/2010JB007831.

  • Kiser, E., & Ishii, M., 2011.
    The 2010 Mw 8.8 Chile earthquake: Triggering on multiple segments and frequency‐dependent rupture behavior.
    Geophys. Res. Lett. 38, L07301, doi:10.1029/2011GL047140.

  • Latychev, K., Mitrovica, J.X., Ishii, M., Chan, E., & Davis, J.L., 2009.
    Body tides on a 3-D elastic Earth: Toward a tidal tomography.
    Earth Planet. Sci. Lett. 277, 86--90, doi:10.1016/j.epsl.2008.10.008.

  • Ishii, M., Shearer, P.M., Houston, H., & Vidale, J.E., 2007.
    Teleseismic P wave imaging of the 26 December 2004 Sumatra-Andaman and 28 March 2005 Sumatra earthquake ruptures using the Hi-net array.
    J. Geophys. Res. 112, B11307, doi:10.1029/2006JB004700.

  • Ishii, M., 2007.
    Seismological constraints on the structure of the Earth's core.
    in Superplume: Beyond Plate Tectonics, edited by D. Yuen, S. Karato, S. Maruyama, and B.F. Windley, 31--68, Kluwer Academic Press, New York.

  • Peng, Z., Vidale, J.E., Ishii, M., & Helmstetter, A., 2007.
    Seismicity rate immediately before and after main shock rupture from high-frequency waveforms in Japan.
    J. Geophys. Res. 112, B03306, doi:10.1029/2006JB004386.

  • Walker, K., Ishii, M., & Shearer, P.M., 2005.
    Rupture details of the 28 March 2005 Sumatra Mw 8.6 earthquake imaged with teleseismic P waves.
    Geophys. Res. Lett. 32(24), L24303, doi:10.1029/2005GL024395.

  • Davis, P., Ishii, M., & Masters, G., 2005.
    An assessment of the accuracy of GSN sensor response information.
    Seism. Res. Lett. 76(6), 678-683.

  • Ishii, M., & Dziewonski, A.M., 2005.
    Constraints on the outer core tangent cylinder using normal-mode splitting measurements.
    Geophys. J. Int. 162(3), 787-792, doi:10.1111/j.1365-246X.2005.02587.x.

  • Ishii, M., Shearer, P.M., Houston, H., & Vidale, J.E., 2005.
    Extent, duration and speed of the 2004 Sumatra-Andaman earthquake imaged by the Hi-Net array.
    Nature 435(7044), 933-936, doi10.1038/nature03675.

  • Pysklywec, R.N., & Ishii, M., 2005.
    Time dependent subduction dynamics driven by the instability of stagnant slabs in the transition zone.
    Phys. Earth Planet. Inter. 149(1-2), 115-132.

  • Lay, T., Heinz, D., Ishii, M., Shim, S., Tsuchiya, J., Tsuchiya, T., Wentzcovitch, R., & Yuen, D., 2005.
    Multi-disciplinary impact of the lower mantle perovskite phase transition.
    EOS Trans. AGU 86(1), 1-5.

  • Ishii, M., & Tromp, J., 2004.
    Constraining large-scale mantle heterogeneity using mantle and inner-core sensitive normal modes.
    Phys. Earth Planet. Inter. 146(1-2), 113-124.

  • Ishii, M., & Dziewonski, A.M., 2003.
    Distinct seismic anisotropy at the centre of the Earth.
    Phys. Earth Planet. Inter. 140(1-3), 203-217.

  • Pysklywec, R.N., Mitrovica, J.X., & Ishii, M., 2003.
    Mantle avalanche as a driving force for tectonic reorganization in the south-west Pacific.
    Earth Planet. Sci. Lett. 209, 29-38.

  • Ishii, M., Tromp, J., Dziewonski, A.M., & Ekström, G., 2002.
    Joint inversion of normal mode and body wave data for inner core anisotropy: 1. Laterally homogeneous anisotropy.
    J. Geophys. Res. 107, doi:10.1029/2001JB000712.

  • Ishii, M., Dziewonski, A.M., Tromp, J., & Ekström, G., 2002.
    Joint inversion of normal mode and body wave data for inner core anisotropy: 2. Possible complexities.
    J. Geophys. Res. 107, doi:10.1029/2001JB000713.

  • Ishii, M., & Dziewonski, A.M., 2002.
    The innermost inner core of the earth: Evidence for a change in anisotropic behavior at the radius of about 300~km.
    Proc. Natl. Acad. Sci. USA 99(22), 14026-14030.

  • Ishii, M., & Tromp, J., 2001.
    Even-degree lateral variations in the mantle constrained by free oscillations and the free-air gravity anomaly.
    Geophys. J. Int. 145(1), 77-96.

  • Ishii, M., & Tromp, J., 1999.
    Normal-mode and free-air gravity constraints on lateral variations in velocity and density of the Earth's mantle.
    Science 285, 1231-1236.

Department of Earth and Planetary Sciences / Harvard University / 20 Oxford Street / Cambridge / MA 02138 / U.S.A. / Telephone: +1 617 495 2350 / Fax: +1 617 496 1907 / Email: reilly@eps.hartvard.edu