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Hiroyuki Kumagai

Hiroyuki Kumagai

Hiroyuki Kumagai publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Hiroyuki Kumagai sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

The last bar groups every scientist with 510 publications or more.

Hiroyuki Kumagai D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Hiroyuki Kumagai sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

The last bar groups every scientist with 94 D-Index or more.

Overview

Hiroyuki Kumagai is affiliated with Nagoya University in Japan and has contributed extensively to the field of Earth and Planetary Sciences, with a strong focus on geophysics. Their research portfolio spans related subfields, including geophysics, astronomy and astrophysics, atmospheric science, and artificial intelligence.

The scientist's work extensively covers topics such as earthquake and tectonic studies, seismic waves and analysis, earthquake detection and analysis, geological and tectonic studies in Latin America, planetary science and exploration, astro and planetary science, and high-pressure geophysics and materials.

Frequent publication venues for Kumagai include:

  • Geophysical Journal International
  • Journal of Volcanology and Geothermal Research
  • Journal of Geophysical Research Planets
  • Journal of Geophysical Research Solid Earth
  • Harvard Dataverse

The list of recent papers illustrates the diversity and range of Kumagai's research contributions:

  • Topographic Degradation Processes of Lunar Crater Walls Inferred From Boulder Falls (2022), Journal of Geophysical Research Planets
  • Empirical formula for the quality factors of crack resonances and its application to the estimation of source properties of long-period seismic events at active volcanoes (2020), Geophysical Journal International
  • Source models of long-period seismic events at Galeras volcano, Colombia (2021), Geophysical Journal International
  • Scattering and Attenuation Characteristics at Volcanoes Inferred From Envelope Widths of Natural and Active Seismic Sources (2020), Journal of Geophysical Research Solid Earth
  • Plume height, duration and volume of sustained explosive eruptions inferred from eruption tremor amplitudes (2022), Geophysical Journal International

Kumagai has collaborated frequently with several researchers, including Kimiko Taguchi, Azusa Mori, Roberto Torres, Indira Molina, and Ayame Ikeda, indicating an active participation in multi-author, interdisciplinary work.

Best Publications

  • Acoustic properties of a crack containing magmatic or hydrothermal fluids

    Hiroyuki Kumagai;Bernard A. Chouet

  • Very-Long-Period Seismic Signals and Caldera Formation at Miyake Island, Japan

    Hiroyuki Kumagai;Takao Ohminato;Masaru Nakano;Masahiro Ooi

  • The complex frequencies of long‐period seismic events as probes of fluid composition beneath volcanoes

    Hiroyuki Kumagai;Hiroyuki Kumagai;Bernard A. Chouet

  • Source mechanism of long-period events at Kusatsu–Shirane Volcano, Japan, inferred from waveform inversion of the effective excitation functions

    Masaru Nakano;Hiroyuki Kumagai;Bernard A. Chouet

  • Broadband seismic monitoring of active volcanoes using deterministic and stochastic approaches

    Hiroyuki Kumagai;Masaru Nakano;Takuto Maeda;Hugo Yepes

  • Temporal evolution of a hydrothermal system in Kusatsu-Shirane Volcano, Japan, inferred from the complex frequencies of long-period events

    Hiroyuki Kumagai;Bernard A. Chouet;Masaru Nakano

  • Dynamic landslide processes revealed by broadband seismic records

    Masumi Yamada;Hiroyuki Kumagai;Yuki Matsushi;Takanori Matsuzawa

  • Detection of landslides and submarine slumps using broadband seismic networks

    C. H. Lin;H. Kumagai;M. Ando;T. C. Shin

  • Waveform inversion of oscillatory signatures in long‐period events beneath volcanoes

    Hiroyuki Kumagai;Bernard A. Chouet;Masaru Nakano

  • Source process of a long-period event at Kilauea volcano, Hawaii

    Hiroyuki Kumagai;Bernard A. Chouet;Phillip B. Dawson

  • Waveform inversion in the frequency domain for the simultaneous determination of earthquake source mechanism and moment function

    M. Nakano;H. Kumagai;H. Inoue

  • Seismic tracking of lahars using tremor signals

    Hiroyuki Kumagai;Pablo Palacios;Takuto Maeda;Diego Barba Castillo

  • Vulcanian eruptions with dominant single force components observed during the Asama 2004 volcanic activity in Japan

    Takao Ohminato;Minoru Takeo;Hiroyuki Kumagai;Tadashi Yamashina

  • The excitation and characteristic frequency of the long-period volcanic event: An approach based on an inhomogeneous autoregressive model of a linear dynamic system

    Masaru Nakano;Hiroyuki Kumagai;Mineo Kumazawa;Koshun Yamaoka

  • The dependence of acoustic properties of a crack on the resonance mode and geometry

    Hiroyuki Kumagai;Bernard A. Chouet

  • Time sequence and the recurrence models for large earthquakes along the Nankai Trough revisited

    Hiroyuki Kumagai

  • Magmatic dike resonances inferred from very-long-period seismic signals.

    Hiroyuki Kumagai;Koji Miyakawa;Hiroaki Negishi;Hiroshi Inoue

  • Source mechanism of a very-long-period event at Mt Ontake, central Japan: Response of a hydrothermal system to magma intrusion beneath the summit

    Haruhisa Nakamichi;Hiroyuki Kumagai;Masaru Nakano;Makoto Okubo

  • Resonances of a volcanic conduit triggered by repetitive injections of an ash‐laden gas

    Indira Molina;Hiroyuki Kumagai;Hugo Yepes

  • Three-dimensional P-wave velocity structure of Tungurahua Volcano, Ecuador

    Indira Molina;Hiroyuki Kumagai;Jean-Luc Le Pennec;Jean-Luc Le Pennec;Minard Hall

  • Broadband seismic monitoring of active volcanoes using deterministic and stochastic approaches

    H. Kumagai;M. Nakano;T. Maeda;H. Yepes

Frequent Co-Authors

Hugo Yepes
Hugo Yepes National Polytechnic School
Bernard A. Chouet
Bernard A. Chouet United States Geological Survey
Mario Ruiz
Mario Ruiz National Polytechnic School
Eiichi Fukuyama
Eiichi Fukuyama Kyoto University
Takuto Maeda
Takuto Maeda Hirosaki University
Patricia Mothes
Patricia Mothes National Polytechnic School
Kazuro Hirahara
Kazuro Hirahara RIKEN Center for Advanced Intelligence Project
Phillip B. Dawson
Phillip B. Dawson United States Geological Survey
Yoshio Fukao
Yoshio Fukao Japan Agency for Marine-Earth Science and Technology
Teruyuki Kato
Teruyuki Kato University of Tokyo

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