Etsuro Koyama

14 total papers · 450 total citations
8 papers, 297 citations indexed

About

Etsuro Koyama is a scholar working on Geophysics, Ecology and Nuclear and High Energy Physics. According to data from OpenAlex, Etsuro Koyama has authored 8 papers receiving a total of 297 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Geophysics, 2 papers in Ecology and 2 papers in Nuclear and High Energy Physics. Recurrent topics in Etsuro Koyama’s work include Seismic Waves and Analysis (3 papers), earthquake and tectonic studies (3 papers) and Polar Research and Ecology (2 papers). Etsuro Koyama is often cited by papers focused on Seismic Waves and Analysis (3 papers), earthquake and tectonic studies (3 papers) and Polar Research and Ecology (2 papers). Etsuro Koyama collaborates with scholars based in Japan, United States and Indonesia. Etsuro Koyama's co-authors include Hiroshi Tsuji, Jun Oikawa, Takao Ohminato, Takayoshi Nakano, Masaki Takeo, Junji Yoshida, S. Takahashi, Yoshitsugu Aoki, Hirofumi Tanaka and Minoru Takeo and has published in prestigious journals such as Earth and Planetary Science Letters, Geophysical Research Letters and Journal of Geophysical Research Solid Earth.

Co-authorship network of co-authors of Etsuro Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Etsuro Koyama. A scholar is included among the top collaborators of Etsuro Koyama 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 Etsuro Koyama. Etsuro Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Etsuro Koyama

8 papers receiving 292 citations

Fields of papers citing papers by Etsuro Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Etsuro Koyama. 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 Etsuro Koyama. The network helps show where Etsuro Koyama may publish in the future.

Countries citing papers authored by Etsuro Koyama

Since Specialization
Citations

This map shows the geographic impact of Etsuro Koyama'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 Etsuro Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Etsuro Koyama more than expected).

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