Robert Y. Koyanagi

2.3k total citations
41 papers, 1.7k citations indexed

About

Robert Y. Koyanagi is a scholar working on Geophysics, Artificial Intelligence and Atmospheric Science. According to data from OpenAlex, Robert Y. Koyanagi has authored 41 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Geophysics, 12 papers in Artificial Intelligence and 11 papers in Atmospheric Science. Recurrent topics in Robert Y. Koyanagi's work include earthquake and tectonic studies (25 papers), Geological and Geochemical Analysis (14 papers) and High-pressure geophysics and materials (13 papers). Robert Y. Koyanagi is often cited by papers focused on earthquake and tectonic studies (25 papers), Geological and Geochemical Analysis (14 papers) and High-pressure geophysics and materials (13 papers). Robert Y. Koyanagi collaborates with scholars based in United States, Czechia and United Kingdom. Robert Y. Koyanagi's co-authors include Keiiti Aki, Daniel Dzurisin, William L. Ellsworth, Richard S. Fiske, Michael P. Ryan, Arnold T. Okamura, Thomas L. Wright, Donald A. Swanson, Dallas B. Jackson and Peter W. Lipman and has published in prestigious journals such as Science, Journal of Geophysical Research Atmospheres and Geophysical Research Letters.

In The Last Decade

Robert Y. Koyanagi

39 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Robert Y. Koyanagi United States 20 1.6k 262 235 124 68 41 1.7k
Jerry P. Eaton United States 21 2.2k 1.4× 257 1.0× 452 1.9× 90 0.7× 29 0.4× 61 2.4k
J. C. VanDecar United States 25 2.9k 1.8× 230 0.9× 251 1.1× 89 0.7× 61 0.9× 48 3.1k
V. K. Gaur India 23 2.0k 1.3× 207 0.8× 130 0.6× 83 0.7× 99 1.5× 62 2.3k
Larry J. Ruff United States 35 4.0k 2.5× 188 0.7× 313 1.3× 166 1.3× 49 0.7× 75 4.2k
Ragnar Stefánsson Iceland 25 1.9k 1.2× 272 1.0× 157 0.7× 46 0.4× 47 0.7× 51 2.1k
Axel Björnsson Iceland 13 894 0.6× 195 0.7× 60 0.3× 71 0.6× 68 1.0× 21 1.0k
P. Vergély France 18 1.5k 0.9× 183 0.7× 174 0.7× 197 1.6× 29 0.4× 43 1.6k
Isidore Zietz United States 18 990 0.6× 199 0.8× 241 1.0× 209 1.7× 45 0.7× 60 1.2k
L. W. Braile United States 32 2.3k 1.4× 185 0.7× 293 1.2× 239 1.9× 153 2.3× 82 2.5k
A. Galdéano France 18 993 0.6× 178 0.7× 91 0.4× 163 1.3× 62 0.9× 41 1.1k

Countries citing papers authored by Robert Y. Koyanagi

Since Specialization
Citations

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

Fields of papers citing papers by Robert Y. Koyanagi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert Y. Koyanagi. 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 Robert Y. Koyanagi. The network helps show where Robert Y. Koyanagi may publish in the future.

Co-authorship network of co-authors of Robert Y. Koyanagi

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

All Works

20 of 20 papers shown
1.
Trusdell, Frank A., et al.. (1995). Volcanic investigations in the Commonwealth of the Northern Mariana Islands, April to May 1994. Antarctica A Keystone in a Changing World. 10 indexed citations
2.
Koyanagi, Robert Y., et al.. (1993). Volcanologic investigations in the Commonwealth of the Northern Mariana Islands, May 1992. Antarctica A Keystone in a Changing World. 3 indexed citations
3.
Wyss, Max & Robert Y. Koyanagi. (1992). Seismic gaps in Hawaii. Bulletin of the Seismological Society of America. 82(3). 1373–1387. 13 indexed citations
4.
Chouet, Bernard, et al.. (1989). Data summary for dense GEOS array observations of seismic activity associated with magma transport at Kilauea Volcano, Hawaii. Antarctica A Keystone in a Changing World. 10 indexed citations
5.
Rydelek, P. A., Paul M. Davis, & Robert Y. Koyanagi. (1988). Tidal triggering of earthquake swarms at Kilauea Volcano, Hawaii. Journal of Geophysical Research Atmospheres. 93(B5). 4401–4411. 49 indexed citations
6.
Nielsen, N. Norby, et al.. (1984). 10. Damage Survey of the Kaoiki, Hawaii Earthquake of November 16, 1983. Earthquake Spectra. 1(1). 173–195. 3 indexed citations
7.
Koyanagi, Robert Y., et al.. (1984). Kaoiki, Hawaii earthquake of November 16, 1983; a preliminary compilation of seismographic data at the Hawaiian Volcano Observatory. Antarctica A Keystone in a Changing World. 11 indexed citations
8.
Ryan, Michael P., et al.. (1983). Magma reservoir subsidence mechanics: Theoretical summary and application to Kilauea Volcano, Hawaii. Journal of Geophysical Research Atmospheres. 88(B5). 4147–4181. 77 indexed citations
9.
Johnston, Arch C., Max Wyss, Robert Y. Koyanagi, & R. E. Habermann. (1982). P wave travel times: Stability and change within the source volume of a M = 7.2 earthquake. Journal of Geophysical Research Atmospheres. 87(B8). 6889–6905. 12 indexed citations
10.
Koyanagi, Robert Y., et al.. (1981). Seismicity of the lower east rift zone of Kilauea Volcano, Hawaii, 1960 to 1980. Antarctica A Keystone in a Changing World. 9 indexed citations
11.
Aki, Keiiti & Robert Y. Koyanagi. (1981). Deep volcanic tremor and magma ascent mechanism under Kilauea, Hawaii. Journal of Geophysical Research Atmospheres. 86(B8). 7095–7109. 246 indexed citations
12.
Ryan, Michael P., Robert Y. Koyanagi, & Richard S. Fiske. (1981). Modeling the three‐dimensional structure of macroscopic magma transport systems: Application to Kilauea Volcano, Hawaii. Journal of Geophysical Research Atmospheres. 86(B8). 7111–7129. 142 indexed citations
13.
Dzurisin, Daniel, L.A. Anderson, Gordon P. Eaton, et al.. (1980). Geophysical observations of Kilauea Volcano, Hawaii, 2. Constraints on the magma supply during November 1975–September 1977. Journal of Volcanology and Geothermal Research. 7(3-4). 241–269. 89 indexed citations
14.
Crosson, Robert S. & Robert Y. Koyanagi. (1979). Seismic velocity structure below the island of Hawaii from local earthquake data. Journal of Geophysical Research Atmospheres. 84(B5). 2331–2342. 42 indexed citations
15.
Ellsworth, William L. & Robert Y. Koyanagi. (1977). Three-dimensional crust and mantle structure of Kilauea Volcano, Hawaii. Journal of Geophysical Research Atmospheres. 82(33). 5379–5394. 147 indexed citations
16.
Swanson, Donald A., Dallas B. Jackson, Robert Y. Koyanagi, & Thomas L. Wright. (1976). The February 1969 east rift eruption of Kilauea Volcano, Hawaii. USGS professional paper. 60 indexed citations
17.
Jackson, Dallas B., Donald A. Swanson, Robert Y. Koyanagi, & Thomas L. Wright. (1975). The August and October 1968 east rift eruptions of Kilauea Volcano, Hawaii. USGS professional paper. 62 indexed citations
18.
Moore, James G. & Robert Y. Koyanagi. (1969). The October 1963 eruption of Kilauea Volcano, Hawaii. USGS professional paper. 17 indexed citations
19.
Kinoshita, W.T., Robert Y. Koyanagi, Thomas L. Wright, & Richard S. Fiske. (1969). Kilauea Volcano: The 1967-68 Summit Eruption. Science. 166(3904). 459–468. 28 indexed citations
20.
Fiske, Richard S. & Robert Y. Koyanagi. (1968). The December 1965 eruption of Kilauea Volcano, Hawaii. USGS professional paper. 31 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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