The quest for reference stations at the National Observatory of Athens, Greece

Ktenidou, Olga-Joan; Pikoulis, Erion-Vasilis; Papageorgiou, Antonia; Gkika, Fevronia; Liakopoulos, Spyros; Cekinmez, Ziya; Savvaidis, Panagiotis; Fragouli, Kalliopi-Elli; Chalaris, Fanis; Evangelidis, Christos P.

doi:10.5194/nhess-26-41-2026

Articles | Volume 26, issue 1

https://doi.org/10.5194/nhess-26-41-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Harmonized seismic hazard and risk assessment for Europe

https://doi.org/10.5194/nhess-26-41-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 1

Research article

|

13 Jan 2026

Research article |

| 13 Jan 2026

The quest for reference stations at the National Observatory of Athens, Greece

Olga-Joan Ktenidou, Erion-Vasilis Pikoulis, Antonia Papageorgiou, Fevronia Gkika, Spyros Liakopoulos, Ziya Cekinmez, Panagiotis Savvaidis, Kalliopi-Elli Fragouli, Fanis Chalaris, and Christos P. Evangelidis

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Cumulative views and downloads (calculated since 26 Jan 2024)

Month	HTML	PDF	XML	Total
Jan 2024	71	25	2	98
Feb 2024	149	16	6	171
Mar 2024	84	15	3	102
Apr 2024	69	38	8	115
May 2024	36	23	7	66
Jun 2024	45	19	4	68
Jul 2024	65	22	12	99
Aug 2024	17	9	4	30
Sep 2024	17	12	2	31
Oct 2024	15	9	0	24
Nov 2024	15	6	0	21
Dec 2024	8	8	0	16
Jan 2025	23	6	1	30
Feb 2025	23	18	0	41
Mar 2025	27	17	1	45
Apr 2025	23	21	3	47
May 2025	23	14	2	39
Jun 2025	33	24	0	57
Jul 2025	17	15	1	33
Aug 2025	63	33	1	97
Sep 2025	332	15	5	352
Oct 2025	32	20	8	60
Nov 2025	41	45	26	112
Dec 2025	32	49	4	85
Jan 2026	34	14	0	48

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Short summary

Greek seismic data are invaluable to global databases. Recordings from stations on rock (i.e. not soft deposits) are needed in seismology in order to define reference ground conditions and ground motions, which serve as the basis for all hazard calculations. However, very little knowledge exists on how rock stations in Greece behave. This is the first time the network of the National Observatory is studied systematically and multiparametrically to reveal the most adequate reference stations.


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