P. Varotsos

11.4k total citations
242 papers, 8.7k citations indexed

About

P. Varotsos is a scholar working on Geophysics, Artificial Intelligence and Materials Chemistry. According to data from OpenAlex, P. Varotsos has authored 242 papers receiving a total of 8.7k indexed citations (citations by other indexed papers that have themselves been cited), including 160 papers in Geophysics, 75 papers in Artificial Intelligence and 57 papers in Materials Chemistry. Recurrent topics in P. Varotsos's work include Earthquake Detection and Analysis (125 papers), Seismology and Earthquake Studies (72 papers) and Seismic Waves and Analysis (44 papers). P. Varotsos is often cited by papers focused on Earthquake Detection and Analysis (125 papers), Seismology and Earthquake Studies (72 papers) and Seismic Waves and Analysis (44 papers). P. Varotsos collaborates with scholars based in Greece, Japan and Germany. P. Varotsos's co-authors include K. Alexopoulos, N. V. Sarlis, E. S. Skordas, M. Lazaridou, Haruo Tanaka, R. O. Simmons, Masashi Kamogawa, Seiya Uyeda, Wolfgang Ludwig and Toshiyasu Nagao and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Physical Review Letters.

In The Last Decade

P. Varotsos

234 papers receiving 8.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. Varotsos Greece 54 6.8k 3.1k 1.6k 1.5k 543 242 8.7k
N. V. Sarlis Greece 38 4.0k 0.6× 2.4k 0.8× 1.5k 1.0× 208 0.1× 218 0.4× 173 5.0k
C. G. Sammis United States 45 6.1k 0.9× 924 0.3× 348 0.2× 588 0.4× 588 1.1× 112 8.4k
K. Alexopoulos Greece 26 2.2k 0.3× 688 0.2× 164 0.1× 848 0.6× 266 0.5× 61 3.0k
E. S. Skordas Greece 36 3.5k 0.5× 2.0k 0.7× 1.3k 0.9× 153 0.1× 143 0.3× 122 4.2k
Alex Hansen Norway 42 722 0.1× 178 0.1× 292 0.2× 1.4k 0.9× 1.3k 2.4× 273 6.9k
Frank Press United States 42 4.8k 0.7× 623 0.2× 69 0.0× 209 0.1× 1.3k 2.4× 163 7.2k
H. Scher United States 42 677 0.1× 105 0.0× 271 0.2× 2.7k 1.8× 912 1.7× 104 11.8k
Barbara Romanowicz United States 63 13.3k 1.9× 790 0.3× 67 0.0× 118 0.1× 719 1.3× 291 13.9k
R. A. Guyer United States 48 2.0k 0.3× 167 0.1× 24 0.0× 1.8k 1.2× 1.0k 1.9× 201 8.1k
S. F. J. Cox United Kingdom 47 4.4k 0.6× 1.6k 0.5× 23 0.0× 1.1k 0.7× 202 0.4× 247 7.6k

Countries citing papers authored by P. Varotsos

Since Specialization
Citations

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

Fields of papers citing papers by P. Varotsos

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P. Varotsos

This figure shows the co-authorship network connecting the top 25 collaborators of P. Varotsos. A scholar is included among the top collaborators of P. Varotsos 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 P. Varotsos. P. Varotsos 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.
Varotsos, P., N. V. Sarlis, E. S. Skordas, et al.. (2025). Twenty-Five Years After the Chi-Chi Earthquake in the Light of Natural Time Analysis. Geosciences. 15(6). 198–198.
2.
Sarlis, N. V., E. S. Skordas, & P. Varotsos. (2025). Recent Advances on the VAN Method. Applied Sciences. 15(19). 10516–10516.
3.
Varotsos, P., E. S. Skordas, N. V. Sarlis, & Stavros‐Richard G. Christopoulos. (2024). Review of the Natural Time Analysis Method and Its Applications. Mathematics. 12(22). 3582–3582. 2 indexed citations
4.
Varotsos, P., N. V. Sarlis, & E. S. Skordas. (2024). Direct interconnection of seismicity with variations of the Earth's electric and magnetic field before major earthquakes. Europhysics Letters (EPL). 146(2). 22001–22001. 4 indexed citations
5.
Varotsos, P., N. V. Sarlis, E. S. Skordas, Toshiyasu Nagao, & Masashi Kamogawa. (2023). Natural time analysis together with non-extensive statistical mechanics shorten the time window of the impending 2011 Tohoku M9 earthquake in Japan. Communications in Nonlinear Science and Numerical Simulation. 125. 107370–107370. 8 indexed citations
6.
Varotsos, P., N. V. Sarlis, E. S. Skordas, et al.. (2023). Improving the Estimation of the Occurrence Time of an Impending Major Earthquake Using the Entropy Change of Seismicity in Natural Time Analysis. Geosciences. 13(8). 222–222. 8 indexed citations
7.
Varotsos, P., N. V. Sarlis, & E. S. Skordas. (2023). Natural Time Analysis: The New View of Time, Part II. 14 indexed citations
8.
Huang, Qinghua, et al.. (2023). RASE: A Real-Time Automatic Search Engine for Anomalous Seismic Electric Signals in Geoelectric Data. IEEE Transactions on Geoscience and Remote Sensing. 61. 1–11. 9 indexed citations
9.
Varotsos, P., N. V. Sarlis, & E. S. Skordas. (2022). Order Parameter and Entropy of Seismicity in Natural Time before Major Earthquakes: Recent Results. Geosciences. 12(6). 225–225. 13 indexed citations
10.
Varotsos, P., N. V. Sarlis, & E. S. Skordas. (2022). Thermodynamics of Point Defects in Solids and Relation with the Bulk Properties: Recent Results. Crystals. 12(5). 686–686. 14 indexed citations
11.
Peschos, Dimitrios, Giorgos Tatsis, Vasilis Christofilakis, et al.. (2020). Remote sensing natural time analysis of heartbeat data by means of a portable photoplethysmography device. International Journal of Remote Sensing. 42(6). 2292–2302. 11 indexed citations
12.
Flores-Márquez, Elsa Leticia, et al.. (2020). Natural Time Analysis of Seismicity within the Mexican Flat Slab before the M7.1 Earthquake on 19 September 2017. Entropy. 22(7). 730–730. 14 indexed citations
13.
Sarlis, N. V., E. S. Skordas, Stavros‐Richard G. Christopoulos, & P. Varotsos. (2020). Natural Time Analysis: The Area under the Receiver Operating Characteristic Curve of the Order Parameter Fluctuations Minima Preceding Major Earthquakes. Entropy. 22(5). 583–583. 29 indexed citations
14.
Varotsos, P., N. V. Sarlis, & E. S. Skordas. (2019). Phenomena preceding major earthquakes interconnected through a physical model. Annales Geophysicae. 37(3). 315–324. 45 indexed citations
15.
Peschos, Dimitrios, Giorgos Tatsis, Spyridon K. Chronopoulos, et al.. (2019). A Prototype Photoplethysmography Electronic Device that Distinguishes Congestive Heart Failure from Healthy Individuals by Applying Natural Time Analysis. Electronics. 8(11). 1288–1288. 30 indexed citations
16.
Ramírez-Rojas, Alejandro, Elsa Leticia Flores-Márquez, N. V. Sarlis, & P. Varotsos. (2018). The Complexity Measures Associated with the Fluctuations of the Entropy in Natural Time before the Deadly México M8.2 Earthquake on 7 September 2017. Entropy. 20(6). 477–477. 33 indexed citations
17.
Varotsos, P., N. V. Sarlis, & E. S. Skordas. (2014). Study of the temporal correlations in the magnitude time series before major earthquakes in Japan. Journal of Geophysical Research Space Physics. 119(11). 9192–9206. 95 indexed citations
18.
Sarlis, N. V., E. S. Skordas, & P. Varotsos. (2010). Effect of significant data loss on identifying Seismic Electric Signals by using detrended fluctuation analysis in natural time. AGU Fall Meeting Abstracts. 2010. 1 indexed citations
19.
Sarlis, N. V. & P. Varotsos. (2001). Comments on the transmission of electric signals in dielectric media. 49. 277–285. 3 indexed citations
20.
Varotsos, P., et al.. (1999). A note on the extent of the SES sensitive area around Lamia (LAM), Greece. 47. 435–444. 4 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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