World's Best Scientists 2026 revealed!
Tomomi Okada

Tomomi Okada

D-Index & Metrics

Earth Science

D-Index
39
Citations
4718
World Ranking
6277
National Ranking
172

Tomomi Okada 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 Tomomi Okada sits on this spectrum.

38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 556 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38 publications 603+

This scientist: 159 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

Tomomi Okada 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 Tomomi Okada sits on this spectrum.

30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 181 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 39 D-Index — 35th percentile

35% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

Overview

Tomomi Okada is affiliated with Tohoku University in Japan and has contributed extensively to the field of Earth and Planetary Sciences. Their research spans mainly the subfields of Geophysics, Artificial Intelligence, Environmental Chemistry, and Oceanography, with a predominant focus on earthquake and tectonic studies as well as high-pressure geophysics and materials.

The scientist's work covers several main topics that include:

  • Earthquake and tectonic studies
  • High-pressure geophysics and materials
  • Seismic Waves and Analysis
  • Seismology and Earthquake Studies
  • Geological and Geochemical Analysis
  • Earthquake Detection and Analysis
  • Methane Hydrates and Related Phenomena

Frequent coauthors in Okada's publications include:

  • Keisuke Yoshida
  • Satoshi Hirahara
  • Naoki Uchida
  • Satoshi Matsumoto
  • Yoshihisa Iio

They often publish in venues such as:

  • Earth Planets and Space
  • Zenodo (CERN European Organization for Nuclear Research)
  • Journal of Geophysical Research Solid Earth
  • Geophysical Journal International
  • Tectonophysics

Selected recent papers by Tomomi Okada include:

  • "Updip Fluid Flow in the Crust of the Northeastern Noto Peninsula, Japan, Triggered the 2023 Mw 6.2 Suzu Earthquake During Swarm Activity" (2023), Geophysical Research Letters
  • "Focal mechanisms and the stress field in the aftershock area of the 2018 Hokkaido Eastern Iburi earthquake (MJMA = 6.7)" (2021), Earth Planets and Space
  • "Stagnant forearc mantle wedge inferred from mapping of shear-wave anisotropy using S-net seafloor seismometers" (2020), Nature Communications
  • "Simultaneous Analysis of Seismic Velocity and Electrical Conductivity in the Crust and the Uppermost Mantle: A Forward Model and Inversion Test Based on Grid Search" (2021), Journal of Geophysical Research Solid Earth
  • "Spatio-temporal analysis of seismic anisotropy associated with the Cook Strait and Kaikōura earthquake sequences in New Zealand" (2020), Geophysical Journal International

Okada's research includes extensive studies on seismic velocity, seismic anisotropy, focal mechanisms, and the fluid dynamics related to earthquake activity. The scientist applies advanced modeling and inversion techniques to analyze the earth's crust and mantles, particularly concerning earthquake aftershock zones and mantle wedge dynamics.

Best Publications

  • A unified source model for the 2011 Tohoku earthquake

    Kazuki Koketsu;Yusuke Yokota;Naoki Nishimura;Yuji Yagi

  • Nearly complete stress drop in the 2011 M w 9.0 off the Pacific coast of Tohoku Earthquake

    Akira Hasegawa;Keisuke Yoshida;Tomomi Okada

  • Anomalous deepening of a seismic belt in the upper-plane of the double seismic zone in the Pacific slab beneath the Hokkaido corner: Possible evidence for thermal shielding caused by subducted forearc crust materials

    Saeko Kita;Tomomi Okada;Akira Hasegawa;Junichi Nakajima

  • Change in stress field after the 2011 great Tohoku-Oki earthquake

    Akira Hasegawa;Keisuke Yoshida;Youichi Asano;Tomomi Okada

  • Stress before and after the 2011 great Tohoku‐oki earthquake and induced earthquakes in inland areas of eastern Japan

    Keisuke Yoshida;Akira Hasegawa;Tomomi Okada;Takeshi Iinuma

  • Temporal Stress Changes Caused by Earthquakes: A Review

    Jeanne L. Hardebeck;Tomomi Okada

  • Existence of a seismic belt in the upper plane of the double seismic zone extending in the along-arc direction at depths of 70–100 km beneath NE Japan

    Saeko Kita;Tomomi Okada;Junichi Nakajima;Toru Matsuzawa

  • Plate subduction, and generation of earthquakes and magmas in Japan as inferred from seismic observations: An overview

    Akira Hasegawa;Junichi Nakajima;Naoki Uchida;Tomomi Okada

  • Extensional structure in Northern Honshu Arc as inferred from seismic refraction/wide‐angle reflection profiling

    Takaya Iwasaki;Wataru Kato;Takeo Moriya;Akiko Hasemi

  • Repeating earthquakes and quasi-static slip on the plate boundary east off northern Honshu, Japan

    Toru Matsuzawa;Naoki Uchida;Toshihiro Igarashi;Tomomi Okada

  • Source parameters of a M4.8 and its accompanying repeating earthquakes off Kamaishi, NE Japan: Implications for the hierarchical structure of asperities and earthquake cycle

    Naoki Uchida;Toru Matsuzawa;William L. Ellsworth;Kazutoshi Imanishi

  • Existence of interplane earthquakes and neutral stress boundary between the upper and lower planes of the double seismic zone beneath Tohoku and Hokkaido, northeastern Japan

    Saeko Kita;Tomomi Okada;Akira Hasegawa;Junichi Nakajima

  • Tomographic imaging of hydrated crust and mantle in the subducting Pacific slab beneath Hokkaido, Japan: Evidence for dehydration embrittlement as a cause of intraslab earthquakes

    Junichi Nakajima;Yusuke Tsuji;Akira Hasegawa;Saeko Kita

  • Lateral variation of the cutoff depth of shallow earthquakes beneath the Japan Islands and its implications for seismogenesis

    Aiymjan M. Omuralieva;Akira Hasegawa;Toru Matsuzawa;Junichi Nakajima

  • Evolution of late Cenozoic magmatism and the crust-mantle structure in the NE Japan Arc

    Takeyoshi Yoshida;Jun Ichi Kimura;Ryoichi Yamada;Valerio Acocella

  • Shear‐wave polarization anisotropy beneath the north‐eastern part of Honshu, Japan

    Tomomi Okada;Toru Matsuzawa;Akira Hasegawa

  • Comparison of source areas of M4.8±0.1 repeating earthquakes off Kamaishi, NE Japan: are asperities persistent features?

    Tomomi Okada;Toru Matsuzawa;Akira Hasegawa

  • Hypocenter migration and crustal seismic velocity distribution observed for the inland earthquake swarms induced by the 2011 Tohoku-Oki earthquake in NE Japan: Implications for crustal fluid distribution and crustal permeability

    Tomomi Okada;Toru Matsuzawa;Norihito Umino;Keisuke Yoshida

  • Estimation of the Orientations of the S‐net Cabled Ocean‐Bottom Sensors

    Ryota Takagi;Naoki Uchida;Takashi Nakayama;Ryosuke Azuma

  • Prestate of Stress and Fault Behavior During the 2016 Kumamoto Earthquake (M7.3)

    Satoshi Matsumoto;Yusuke Yamashita;Manami Nakamoto;Masahiro Miyazaki

  • High-resolution seismic velocity structure beneath the Hokkaido corner, northern Japan: Arc-arc collision and origins of the 1970 M 6.7 Hidaka and 1982 M 7.1 Urakawa-oki earthquakes

    Saeko Kita;Akira Hasegawa;Junichi Nakajima;Tomomi Okada

  • The 2005 M7.2 MIYAGI-OKI earthquake, NE Japan: Possible rerupturing of one of asperities that caused the previous M7.4 earthquake

    Tomomi Okada;Tadashi Yaginuma;Norihito Umino;Toshio Kono

Frequent Co-Authors

Toru Matsuzawa
Toru Matsuzawa Tohoku University
Akira Hasegawa
Akira Hasegawa Tohoku University
Naoki Uchida
Naoki Uchida Tohoku University
Norihito Umino
Norihito Umino Tohoku University
Junichi Nakajima
Junichi Nakajima Tokyo Institute of Technology
Martha K. Savage
Martha K. Savage Victoria University of Wellington
Clifford H. Thurber
Clifford H. Thurber University of Wisconsin–Madison
Dapeng Zhao
Dapeng Zhao Tohoku University
Takaya Iwasaki
Takaya Iwasaki University of Tokyo

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