平野史朗 (博士・理学)
Shiro Hirano, PhD,
Research associate, Dept. of Phys. Sci.,
College of Sci. & Eng., Ritsumeikan Univ., Japan

Research Interests

Mathematical modeling of earthquake fault mechanics
Dynamic rupture along and crossing with a material interface
Earthquake energy estimation based on inversion analyses
Determination of rupture velocity with a granular layer friction
Unilateral rupture along megathrust faults
Data analysis of foreshocks
Long-term matched filter technique to detect foreshocks
Theoretical background of seismic sequences
Laboratory experiments associated with earthquake
Dynamic shear rupture in a photoelastic medium
Earthquake engineering
Pseudo-dynamic source modelling for strong ground motion prediction

Antecedents

Research associate, Apr. 2015 -- present
Department of Physical Science, College of Science and Engineering, Ritsumeikan University, Japan
Teaching Earth Science/Laboratory Works in Earth Science
Postdoctral fellow, Oct. 2013 -- Mar. 2015
Mega Quake Risk Management Project / Faculty of Engineering, Information and Systems, Tsukuba University, Japan
PhD course, Apr. 2009 -- Sep. 2013
Earthquake Research Institute / Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Japan
supervised by Teruo Yamashita and Nobuki Kame
Internship, Jul. 2011 -- Aug. 2011
School of Engineering and Applied Science, Harvard University, U.S.
hosted by James R. Rice
Master's course, Apr. 2007 -- Mar. 2009
Earthquake Research Institute / Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Japan
supervised by Teruo Yamashita
Undergraduate course, Apr. 2003 -- Mar. 2007
Department of Mathematics, Faculty of Science, Tokyo University of Science, Japan
supervised by Keiichi Kato

Publications

Hirano, S., Kawakata, H., and Doi, I. (in prep.)
Objective matched filter analysis for seismic event detection
Tectonophysics
Okuwaki, R., Kasahara, A., Yagi, Y., Hirano, S. and Fukahata, Y. (revision submitted)
Backprojection to image slip
Geophys. J. Int. / EarthArXiv
Hirano, S. (revision submitted)
Modeling of unilateral rupture along very-long reverse faults
J. Geophys. Res.
Hirano, S. (accepted)
Résumé: Energy estimation of earthquake faulting processes
Singularity and asymptotic behavior of solutions for partial differential equations with conservation law: RIMS Kôkyûroku Bessatsu.
Hirano, S. (accepted)
Friction vs. damage: dynamic self-similar crack growth revisited
In: Itou, H. et al. (eds) Mathematical Analysis of Continuum Mechanics and Industrial Applications III. CoMFoS18. Mathematics for Industry, Springer.
Nakayama, M., Kawakata, H., Hirano, S., Doi, I., and Takahashi, N. (2018)
Propagation characteristics of elastic waves transmitted through sand soils under dry and saturated conditions
Progress in Acoustic Emission XIX, Jpn. Soc. Non-Destructive Inspection, 163--167.
Tamaribuchi, K., Yagi, Y., Enescu, B. and Hirano, S. (2018)
Characteristics of foreshock and aftershock activity inferred from the JMA earthquake catalog improved by automatic processing
Earth Planet Space, 70:90, doi:10.1186/s40623-018-0866-9.
Hirano, S. (2018)
Integral representation and its applications in earthquake mechanics: a review
In: van Meurs P., Kimura M., Notsu H. (eds) Mathematical Analysis of Continuum Mechanics and Industrial Applications II. CoMFoS 2016. Mathematics for Industry, vol 30. Springer, Singapore, doi:10.1007/978-981-10-6283-4_9.
Endo, S., Nakao, A., Hirano, S. and Yagi, Y. (2017)
The 2013 Sea of Okhotsk deep earthquake: A complex rupture within the Ringwoodite stability zone
Earth Evol. Sci., 11:23--30.
Hirano, S. and Yagi, Y. (2017)
Dependence of seismic and radiated energy on shorter wavelength components
Geophys. J. Int., 209(3) 1585--1592, doi:10.1093/gji/ggx108.
Hirano, S. (2017)
Propagation velocity of pulse-like rupture along earthquake faults
In: Itou H., Kimura M., Chalupecký V., Ohtsuka K., Tagami D., Takada A. (eds) Mathematical Analysis of Continuum Mechanics and Industrial Applications. Mathematics for Industry, vol 26. Springer, Singapore, doi:10.1007/978-981-10-2633-1_10.
Hirano, S. and Yamashita, T. (2016)
Modeling of interfacial dynamic slip pulses with slip-weakening friction
Bull. Seism. Soc. Am. 106(4) 1628--1636, doi: 10.1785/0120150208
Hirano, S. and Yamashita, T. (2015)
Dynamic anti-plane rupture propagation crossing a material interface: modelling with BIEM
Geophys. J. Int. 200(2) 1220--1233, doi:10.1093/gji/ggu471
Okuwaki, R., Yagi, Y. and Hirano, S. (2014)
Relationship between High-frequency Radiation and Asperity Ruptures, Revealed by Hybrid Back-projection with a Non-planar Fault Model
Scientific Reports, 4:7120, doi:10.1038/srep07120
Yagi, Y., Okuwaki, R., Enescu, B., Hirano, S., Yamagami, Y., Endo, S. and Komoro, T. (2014)
Rupture process of the 2014 Iquique Chile earthquake in relation with the foreshock activity
Geophys. Res. Lett., 41(12) 4201--4206, doi: 10.1002/2014GL060274.
Hirano, S. and Yamashita, T. (2011)
Analysis of the static stress field around faults lying along and intersecting a bimaterial interface
Geophys. J. Int. 187(3) 1460--1478, doi: 10.1111/j.1365-246X.2011.05202.x
桑野修, 平野史朗, 藤田哲史, 日下部哲也, 小寺祐貴, 亀伸樹, 中谷正生, 安藤亮輔 (2011)
寒天(アガロースゲル)を用いた断層の動的破壊実験
日本地震学会ニュースレター Vol.22 No.6, 表紙

International Presentations

Hirano, S.
Friction vs. damage: dynamic self-similar crack growth revisited
CoMFoS18:Mathematical Analysis of Continuum Mechanics and Industrial Applications, Kyoto, Japan, June, 2018
Hirano, S., Toyomoto, Y., Kawakata, H. and Doi, I.
Objective matched-filter analysis for dertecting small events
International Symposium on Earthquake Forecast / 5th International Workshop on Earthquake Preparation Process, ~Observation, Validation, Modeling, Forecasting~ , Chiba, Japan, May, 2018
Hirano, S.
Mathematical modeling and numerical simulation of unilateral dynamic rupture propagation along very-long reverse faults" (Click to PDF) (Reference List)
American Geophysical Union 2017 Fall Meeting, New Orleans, U.S., December, 2017
Nakayama, M., Kawakata, H., Hirano, S., Doi, I. and Takahashi, N.
Improvement in transmission experiment of elastic waves through partially saturated porous sand soil
American Geophysical Union 2017 Fall Meeting, New Orleans, U.S., December, 2017
Yoneda, N., Kawakata, H., Hirano, S., Yoshimitsu, N. and Takahashi, N.
Extraction of AE events to estimate their b values under a triaxial compressive condition ~Examination using continuous broadband records~
American Geophysical Union 2017 Fall Meeting, New Orleans, U.S., December, 2017
Wakamatsu, S., Kawakata, H. and Hirano, S.
Observed seismic and infrasonic signals around the Hakone volcano -Discussion based on a finite-difference calculation-
American Geophysical Union 2017 Fall Meeting, New Orleans, U.S., December, 2017
Hirano, S.
Unilateral dynamic rupture propagation along earthquake faults
CoMFoS17:Mathematical Analysis of Continuum Mechanics and Industrial Applications, OIST, Japan, September, 2017
Hirano, S.
Energy estimation of earthquake faulting based on a wavefield inversion
RIMS workshop on "Singularity and asymptotic behavior of solutions for partial differential equations with conservation law", Kyoto, Japan, June, 2017
Hirano, S.
Integral equation for mechanics of earthquakes
RIMS workshop on "Inverse problems for partial differential equations and related areas", Kyoto, Japan, January, 2017
Hirano, S., Yamashita, T. and Hatano, T.
Behavior of pulse-like rupture with velocity-time-dependent friction from a granular layer model
American Geophysical Union 2016 Fall Meeting, San Francisco, U.S., December, 2016
Toyomoto, Y., Kawakata, H., Hirano, S. and Doi, I.
Foreshock search over a long duration using a method of setting appropriate criteria
American Geophysical Union 2016 Fall Meeting, San Francisco, U.S., December, 2016
Tsujimura, Y., Kawakata, H., Fukuyama, E., Yamashita, F., Xu, S., Mizoguchi, K, Takizawa, S. and Hirano, S.
Spatio-temporal foreshock activity during stick-slip experiments of large rock samples
American Geophysical Union 2016 Fall Meeting, San Francisco, U.S., December, 2016
Hirano, S.
Integral representation and its applications of the mechanics of earthquakes
CoMFoS16:Mathematical Analysis of Continuum Mechanics and Industrial Applications, Kyushu University, Japan, October, 2016
Hirano, S. and Yamashita, T.
Propagation velocity of pulse-like rupture with a time-weakening friction law" (click to PDF)
American Geophysical Union 2015 Fall Meeting, San Francisco, U.S., December, 2015
Iwata, K., Kawakata, H., Hirano, S., and Doi, I.
Estimation of Seismic Attenuation beneath Tateyama Volcano, Central Japan by Using Peak Delay
American Geophysical Union 2015 Fall Meeting, San Francisco, U.S., December, 2015
Imahori, A., Kawakata, H., Hirano, S., Yoshimitsu, N., and Takahashi, N.
Travel Times of Later Phases for Transmitting Waves through a Fracturing Westerly Granite Sample under a Triaxial Compressive Condition
American Geophysical Union 2015 Fall Meeting, San Francisco, U.S., December, 2015
Hirano, S.
Propagation velocity of pulse-like rupture along earthquake fault
CoMFoS15:Mathematical Analysis of Continuum Mechanics and Industrial Applications, Kyushu University, Japan, November, 2015
Hirano, S. and Yagi, Y.
Dependence of seismic energy on higher wavenumber components" (click to PDF)
American Geophysical Union 2014 Fall Meeting, San Francisco, U.S., December, 2014
Yagi, Y., Okuwaki, R., Enescu, B. and Hirano, S.
Rupture process of the 2014 Iquique Chile earthquake in relation with the foreshock activity
American Geophysical Union 2014 Fall Meeting, San Francisco, U.S., December, 2014
Hirano, S. and Yamashita, T.
BIEM Simulation for Anti-Plane Dynamic Rupture Propagation across a Bimaterial Interface
Seismological Society of America Annual Meeting, Anchorage, U.S., April, 2014
Okuwaki, R., Yagi, Y. and Hirano, S.
Relationship between High-frequency Radiation and Asperity Rupture,Revealed by Hybrid Back-projection with Non-planer Fault
Seismological Society of America Annual Meeting, Anchorage, U.S., April, 2014
Hirano, S.
An integral representation and numerical simulation of dynamic earthquake faulting occurring in a two-layered medium
Conference on Diffusion in Heterogeneous Media and Related Topics, Tokyo, Japan, March, 2014
Hirano, S. and Yamashita, T.
Off Fault Stress Distribution around Dynamic Slip Pulse on a Bimaterial Interface
The 7th ACES International Workshop, Otaru, Japan, October, 2010
Hirano, S. and Yamashita, T.
Theoretical analysis of static mode-II crack in two-layered medium - interfacial fault and intersecting fault
Workshop -Earthquake Source Dynamics: Data and Data-constrained Numerical Modeling, Smolenice Castle, Slovakia, June, 2010
Hirano, S. and Yamashita, T.
Mathematical and numerical analysis of non-planar static mode-II crack in a two-layered medium
American Geophysical Union 2009 Fall meeting, San Francisco, U.S., December, 2009
Hirano, S. and Yamashita, T.
Mathematical and numerical analyses of arbitrarily oriented static mode-II crack in a two-layered medium
The 7th General Assembly of Asian Seismological Commission and The 2008 Fall meeting of Seismological Society of Japan, Tsukuba, Japan, November, 2008

Grants

Apr. 2018 -- Mar. 2022
SPDE modeling for diversity and heterogeneity of earthquake ruptures
the Grants-in-Aid for Scientific Research(KAKENHI) Program No. 18K13637
Principal Investigator
Apr. 2017 -- Mar. 2021
Mathematical modeling and analysis of discontinuous phenomena in continuum body
the Grants-in-Aid for Scientific Research(KAKENHI) Program No. 17H02857
Co-Investigator

Contributions

Journal Referee
Bulletin of Seismological Society of America
Computers and Mathematics with Applications
European Journal of Environmental and Civil Engineering
Geophysical Journal International
Journal of Geophysical Research: Solid Earth
Journal of Japan Association for Earthquake Engineering