Hiromu Okada

403 total citations
16 papers, 327 citations indexed

About

Hiromu Okada is a scholar working on Geophysics, Artificial Intelligence and Atmospheric Science. According to data from OpenAlex, Hiromu Okada has authored 16 papers receiving a total of 327 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Geophysics, 3 papers in Artificial Intelligence and 3 papers in Atmospheric Science. Recurrent topics in Hiromu Okada's work include earthquake and tectonic studies (10 papers), Geological and Geochemical Analysis (8 papers) and High-pressure geophysics and materials (6 papers). Hiromu Okada is often cited by papers focused on earthquake and tectonic studies (10 papers), Geological and Geochemical Analysis (8 papers) and High-pressure geophysics and materials (6 papers). Hiromu Okada collaborates with scholars based in Japan, United States and France. Hiromu Okada's co-authors include I. Selwyn Sacks, Philippe Jousset, J. A. Snoke, Hitoshi Mori, Ann Shawing Yang, Kenji Notsu, Masanori Sato, Nemesio M. Pérez, Toshiya Mori and Francisco Barahona and has published in prestigious journals such as Geophysical Journal International, Bulletin of the Seismological Society of America and Journal of Volcanology and Geothermal Research.

In The Last Decade

Hiromu Okada

16 papers receiving 284 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hiromu Okada Japan 10 288 28 25 23 15 16 327
P.E. Comninakis Greece 7 587 2.0× 35 1.3× 30 1.2× 55 2.4× 12 0.8× 9 625
Hiroshi Yakiwara Japan 10 411 1.4× 9 0.3× 37 1.5× 81 3.5× 32 2.1× 21 447
Wu-Lung Chang Taiwan 6 344 1.2× 12 0.4× 49 2.0× 69 3.0× 7 0.5× 7 400
Riccardo Rasà Italy 8 399 1.4× 18 0.6× 90 3.6× 35 1.5× 13 0.9× 9 433
Robert S. Cockerham United States 8 348 1.2× 12 0.4× 38 1.5× 71 3.1× 7 0.5× 10 377
Charles S. McCreery United States 11 396 1.4× 72 2.6× 48 1.9× 115 5.0× 15 1.0× 38 458
C. S. Weaver United States 7 245 0.9× 9 0.3× 61 2.4× 69 3.0× 6 0.4× 17 294
Toshikazu Tanada Japan 9 261 0.9× 7 0.3× 37 1.5× 66 2.9× 14 0.9× 20 294
А. С. Прытков Russia 13 386 1.3× 41 1.5× 29 1.2× 32 1.4× 3 0.2× 30 428
E. Lo Giudice Italy 8 366 1.3× 11 0.4× 61 2.4× 32 1.4× 15 1.0× 18 394

Countries citing papers authored by Hiromu Okada

Since Specialization
Citations

This map shows the geographic impact of Hiromu Okada's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hiromu Okada with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiromu Okada more than expected).

Fields of papers citing papers by Hiromu Okada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hiromu Okada. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hiromu Okada. The network helps show where Hiromu Okada may publish in the future.

Co-authorship network of co-authors of Hiromu Okada

This figure shows the co-authorship network connecting the top 25 collaborators of Hiromu Okada. A scholar is included among the top collaborators of Hiromu Okada based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hiromu Okada. Hiromu Okada is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

16 of 16 papers shown
1.
Yang, Ann Shawing & Hiromu Okada. (2018). Corporate innovations as institutional anomie: Patent activities and financial performance of the international aerospace industry. Finance research letters. 28. 328–336. 9 indexed citations
2.
Hernández, Pedro A., Kenji Notsu, Hiromu Okada, et al.. (2006). Diffuse Emission of CO2 from Showa-Shinzan, Hokkaido, Japan: A Sign of Volcanic Dome Degassing. Pure and Applied Geophysics. 163(4). 869–881. 26 indexed citations
3.
Oshima, Hiromitsu, Hiroshi Aoyama, Hitoshi Mori, et al.. (2006). P-wave velocity structure of Usu volcano: Implication of structural controls on magma movements and eruption locations. Journal of Volcanology and Geothermal Research. 160(1-2). 175–194. 22 indexed citations
4.
Matsumoto, Mitsuhiro, et al.. (2005). Investigation on Acidification of River Waters in Nara Prefecture. Journal of Environmental Chemistry. 15(1). 103–116. 2 indexed citations
5.
Jousset, Philippe, Hitoshi Mori, & Hiromu Okada. (2003). Elastic models for the magma intrusion associated with the 2000 eruption of Usu Volcano, Hokkaido, Japan. Journal of Volcanology and Geothermal Research. 125(1-2). 81–106. 43 indexed citations
6.
Jousset, Philippe, Hitoshi Mori, & Hiromu Okada. (2000). Possible magma intrusion revealed by temporal gravity, ground deformation and ground temperature observations at Mount Komagatake (Hokkaido) during the 1996-1998 crisis. Geophysical Journal International. 143(3). 557–574. 20 indexed citations
7.
Jousset, Philippe & Hiromu Okada. (1999). Post-eruptive volcanic dome evolution as revealed by deformation and microgravity observations at Usu volcano (Hokkaido, Japan). Journal of Volcanology and Geothermal Research. 89(1-4). 255–273. 22 indexed citations
8.
Goto, Akio, et al.. (1994). Viscosity Measurements of Dome Lava and Volcanic Ejecta of Unzen Volcano. 39(6). 267–271. 2 indexed citations
9.
Nishimura, Yuichi, Hitoshi Mori, & Hiromu Okada. (1992). Earthquake Families Observed at Tarumai Volcano, Hokkaido, Japan, during Junuary and February, 1988. Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University). 9(2). 289–302. 1 indexed citations
10.
Miyamachi, Hiroki, Hidefumi Watanabe, Takeo Moriya, & Hiromu Okada. (1987). Seismic experiments on Showa-Shinzan lava dome using firework shots. Pure and Applied Geophysics. 125(6). 1025–1037. 4 indexed citations
11.
Okada, Hiromu, et al.. (1983). Erosion and mass movements on Mt. Usu accelerated by crustal deformation that accompanied its 1977-1982 volcanism. Medical Entomology and Zoology. 5(2). 33–62. 6 indexed citations
12.
Okada, Hiromu, et al.. (1980). Peculiar Occurrence of Usu Earthquake Swarm Associated with the Recent Doming Activity. Zisin (Journal of the Seismological Society of Japan 2nd ser ). 33(2). 215–226. 3 indexed citations
13.
Snoke, J. A., I. Selwyn Sacks, & Hiromu Okada. (1977). Determination of the subducting lithosphere boundary by use of converted phases. Bulletin of the Seismological Society of America. 67(4). 1051–1060. 67 indexed citations
14.
Sacks, I. Selwyn & Hiromu Okada. (1974). A comparison of the anelasticity structure beneath western South America and Japan. Physics of The Earth and Planetary Interiors. 9(3). 211–219. 62 indexed citations
15.
Snoke, J. A., I. Selwyn Sacks, & Hiromu Okada. (1974). A model not requiring continuous lithosphere for anomalous high-frequency arrivals from deep-focus South American earthquakes. Physics of The Earth and Planetary Interiors. 9(3). 199–206. 17 indexed citations
16.
Okada, Hiromu. (1971). Forerunners of <i>ScS</i> Waves from Nearby Deep Earthquakes and Upper Mantle Structure in Hokkaido. Zisin (Journal of the Seismological Society of Japan 2nd ser ). 24(3). 228–239. 21 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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2026