EARTHQUAKE TRIGGERING EFFECT SCENARIOS DURING THE 2014 SEQUENCE IN CEPHALONIA AND 2015 EARTHQUAKE IN LEFKADA BROADER AREAS, IONIAN SEA, GREECE

PDF
Published: Jul 27, 2016
DOI: https://doi.org/10.12681/bgsg.11754
Keywords:
fault modelling stress transfer Cephalonia Lefkada earthquakes
S. Sboras
Aristotle University of Thessaloniki, Department of Geology
A. Chatzipetros
Aristotle University of Thessaloniki, Department of Geology
S. Pavlides
Aristotle University of Thessaloniki, Department of Geology
V. Karastathis
Institute of Geodynamics
G. Papadopoulos
Institute of Geodynamics
Abstract

In this paper we defined the local complex fault system of the Cephalonia three strongest earthquakes (Mw6.1, Mw5.3 and Mw6.0) of the January-February 2014 sequence and the Lefkada mainshock (Mw6.4) on November 17, 2015, in order to investigate the fault interaction i) within the 2014 sequence, ii) between the 2014 sequence and the fault that produced the 2015 Lefkada event, and iii) the cumulative effects of all Cephalonia and Lefkada strong events on other neighbouring faults, by calculating the static stress changes. The Coulomb stress change calculations suggest a complex distribution pattern on most of the cases, with only exceptions the F4 fault (Lefkada earthquake), which seems to be barely loaded with stress after the Cephalonia 2014 events, and the “Assos-Skala” fault, which seems to be stress relieved after all Caphalonia 2014 and Lefkada 2015 events.

Article Details
  • Section
  • Geophysics and Seismology
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Downloads
Download data is not yet available.
References
Aki, K., 1966. Generation and propagation of G-waves from the Niigata earthquake of June 16, 1964. 2. Estimation of earthquake movement, released energy and stress-strain drop from G spectrum, Bull. Earthq. Res. Inst., 44, 23-88.
Ambraseys, N., 2009. Earthquakes in the Mediterranean and Middle East: A Multidisciplinary Study of Seismicity up to 1900, Cambridge University Press, New York.
Benekos, G., Derdelakos, K., Bountzouklis, C. and Kourkouli, P., 2014. Surface displacements of the 2014 Cephalonia (Greece) earthquake using high resolution SAR interferometry, 5th EARSeL Workshop on Remote Sensing and Geology, June 19-20, 2014, Warsaw, Poland, 43-48.
Benetatos, C., Kiratzi, A., Roumelioti, Z., Stavrakakis, G., Drakatos, G. and Latoussakis, I., 2005. The 14 August 2003 Lefkada Island (Greece) earthquake: focal mechanisms of the mainshock and of the aftershock sequence, J. Seismol., 9(2), 171-190.
Boncori, J.P.M., Papoutsis, I., Pezzo, G., Tolomei, C., Atzori, S., Ganas, A., Karastathis, V., Salvi, S., Kontoes, C. and Antonioli, A., 2015. The February 2014 Cephalonia Earthquake (Greece): 3D Deformation Field and Source Modeling from Multiple SAR Techniques, Seismol. Res. Let., 86(1), early edition.
Briole, P., Elias, P., Parcharidis, I., Bignami, C., Benekos, G., Samsonov, S., Kyriakopoulos, C., Stramondo, S., Chamot-Rooke, N., Drakatou, M.L. and Drakatos, G., 2015. The seismic sequence of January–February 2014 at Cephalonia Island (Greece): constraints from SAR interferometry and GPS, Geophys. J. Int., 203(3), 1528-1540.
Caputo, R., Chatzipetros, A., Pavlides, S. and Sboras, S., 2013. The Greek Database of Seismogenic Sources (GreDaSS): state-of-the-art for northern Greece, Ann. Geophys., 55(5), 859-894.
Chatzipetros, A., Sboras, S. and Pavlides, S., 2014. The Cephalonia (Greece) January 26, 2014 M6.1 earthquake: preliminary interpretation and stress transfer analysis, Geophys. Res. Abstracts, 16, EGU2014-16820.
Cocard, M., Kahle, H.G., Peter, Y., Geiger, A., Veis, G., Felekis, S., Paradissis, D. and Billiris, H., 1999. New constraints on the rapid crustal motion of the Aegean region: recent results inferred from GPS measurements (1993-1998) across the West Hellenic Arc, Greece, Earth
Planet. Sci. Lett., 172(1), 39-47.
Deng, J. and Sykes, L.R., 1997a. Evolution of the stress field in southern California and triggering of moderate-size earthquakes: a 200-year perspective, J. Geophys. Res., 102, 9859-9886.
Deng, J. and Sykes, L.R., 1997b. Stress evolution in southern California and triggering of moderate-, small-, and micro-size earthquakes. J. Geophys. Res., 102, 24411-24435.
Ganas, A., Marinou, A., Anastasiou, D., Paradissis, D., Papazissi, K., Tzavaras, P. and Drakatos, G., 2013. GPS-derived estimates of crustal deformation in the central and north Ionian Sea, Greece: 3-yr results from NOANET continuous network data, J. Geodyn., 67, 62-71.
Ganas, A., Briole, P., Papathanassiou, G., Bozionelos, G., Avallone, A., Melgar, D., Argyrakis, P., Valkaniotis, S., Mendonidis, E., Moshou, A. and Elias, P., 2015. A preliminary report on the Nov 17, 2015 M=6.4 South Lefkada earthquake, Ionian Sea, Greece, Report published online on EMSC, 22 pp.
Grandazzi, M., 1954. Le tremblement de terre des îles ioniennes (aout 1953), Annales de Geographie, 340, 431-453.
Hollenstein, C., Müller, M.D., Geiger, A. and Kahle, H.G., 2008. GPS-derived coseismic displacements associated with the 2001 Skyros and 2003 Lefkada earthquakes in Greece, Bull. Seismol. Soc. Am., 98(1), 149-161.
Kahle, H.G., Müller, M.V. and Veis, G., 1996. Trajectories of crustal deformation of western Greece from GPS observations 1989-1994, Geophys. Res. Let., 23(6), 677-680.
Karastathis, V.K., Mouzakiotis, E., Ganas, A. and Papadopoulos, G.A., 2014. High-precision relocation of seismic sequences above a dipping Moho: the case of the January-February 2014 seismic sequence in Cephalonia Isl (Greece), Solid Earth Discuss, 6(2), 2699-2733.
King, G.C.P. and Cocco, M., 2001. Fault interaction by elastic stress changes: New clues from earthquake sequences, Adv. Geophys., 44, 1-38.
King, G., Tselentis, A., Gomberg, J., Molnar, P., Roecker, S., Sinvhal, H., Soufleris, C. and Stock, J., 1983. Microearthquake seismicity and active tectonics of northwestern Greece, Earth Planet. Sci. Lett., 66, 279-288.
King, G.C.P., Stein, R.S. and Lin, J., 1994. Static Stress Changes and the Triggering of Earthquakes, Bull. Seism. Soc. Am., 84(3), 935-953.
Lagios, E., Papadimitriou, P., Novali, F., Sakkas, V., Fumagalli, A., Vlachou, K. and Del Conte, S., 2012. Combined Seismicity Pattern Analysis, DGPS and PSInSAR studies in the broader area of Cephalonia (Greece), Tectonophysics, 524, 43-58.
Nalbant, S.S., Hubert, A. and King, G.C.P., 1998. Stress coupling between earthquakes in northwestern Turkey and the north Aegean Sea, J. Geophys. Res., 103, 24469-24486.
Papadimitriou, E.E., 2002. Mode of strong earthquake recurrence in the Central Ionian Islands (Greece): possible triggering due to Coulomb Stress Changes generated by the occurrence of previous strong shocks, Bull. Seismol. Soc. Am., 92(8), 3293-3308.
Papadimitriou, P., Kaviris, G. and Makropoulos, K., 2006. The Mw= 6.3 2003 Lefkada earthquake (Greece) and induced stress transfer changes, Tectonophysics, 423(1), 73-82.
Papadimitriou, P., Karakonstantis, A., Bozionelos, G., Kapetanidis, V., Kaviris, G., Spingos, I., Millas, C., Kassaras, I. and Voulgaris, N., 2015. Preliminary report on the Lefkada 17 November 2015 Mw=6.4 earthquake, Report published online on EMSC, 12 pp.
Papadopoulos, G.A. and Plessa, A., 2001. Historical earthquakes and tsunamis of the south Ionian Sea occurring from 1591 to 1837, Bull. Geol. Soc. Greece, 34(4), 1547-1554.
Papadopoulos, G.A., Karastathis, V.K., Koukouvelas, I., Sachpazi, M., Baskoutas, I., Chouliaras, G., Agalos, A., Daskalaki, E., Minadakis, G., Moshou, A., Mouzakiotis, A., Orfanogiannaki, K., Papageorgiou, A., Spanos, D. and Triantafyllou, I., 2014. The Cephalonia, Ionian Sea (Greece), sequence of strong earthquakes of January-February 2014: a first report, Res. Geophys., 4(5441), 19-30.
Papathanassiou, G., Ganas, A., Moshou, A. and Valkaniotis, S., 2016. Geoenviromental effects of the M=6.4 17 November 2015 earthquake on south Lefkada, Ionian Sea, Greece, Bull. Geol. Soc. Greece, 50, in press.
Papazachos, B. and Papazachou, C., 1997/2003. The earthquakes of Greece. Ed Ziti, Thessaloniki.
Pavlides, S., Caputo, R., Sboras, S., Chatzipetros, A., Papathanasiou, G. and Valkaniotis, S., 2010. The Greek Catalogue of Active Faults and Database of Seismogenic Sources, Bull. Geol. Soc. Greece, 43(1), 486-494.
Sboras, S., 2012. The Greek Database of Seismogenic Sources: seismotectonic implications for North Greece, PhD Thesis, Università degli studi di Ferrara, Italy, 252 pp.
Sboras, S., Pavlides, S., Caputo, R., Chatzipetros, A., Michailidou, A., Valkaniotis, S. and Papathanassiou, G., 2014. The use of geological data to improve SHA estimates in Greece, Boll. Geofis. Teor. Appl., 55(1), 55-67.
Sokos, E., Kiratzi, A., Gallovič, F., Zahradník, J., Serpetsidaki, A., Plicka, V., Janský, J., Kostelecký, J. and Tselentis, G.A., 2015. Rupture process of the 2014 Cephalonia, Greece, earthquake doublet (Mw6) as inferred from regional and local seismic data, Tectonophysics, 656, 131-141.
Stein, R., Barka, A. and Dieterich, J., 1997. Progressive failure on the North Anatolian fault since 1939 by earthquake stress triggering, Geophys. J. Int., 128, 593-604.
Stiros, S.C., Pirazzoli, P.A. and Laborel, J.F., 1994. The 1953 earthquake in Cephallonia (Western Hellenic Arc): costal uplift and halotectonic faulting, Geophys. J. Int., 117(3), 834-849.
Toda, S., Stein, R.S., Richards-Dinger, K. and Bozkurt, S., 2005. Forecasting the evolution of seismicity in southern California: Animations built on earthquake stress transfer, J. Geophys. Res., 110, B05S16.
Toda, S., Stein, R.S., Sevilgen, V. and Lin, J., 2011. Coulomb 33 Graphic-rich deformation and stress-change software for earthquake, tectonic, and volcano research and teaching - user guide, US Geological Survey Open-File Report, 2011-1060, 63 pp.
Valkaniotis, S., Ganas, A., Papathanassiou, G. and Papanikolaou, M., 2014. Field observations of geological effects triggered by the January-February 2014 Cephalonia (Ionian Sea, Greece) earthquakes, Tectonophysics, 630, 150-157.
Vannucci, G. and Gasperini, P., 2004. The new release of the database of Earthquake Mechanisms of the Mediterranean Area (EMMA Ver. 2). Ann. Geofis., supplement to Vol 47, 307-334.
Wells, D.L. and Coppersmith, J.K., 1994. New Empirical Relationships among Magnitude, Rupture Length, Rupture Width, Rupture Area, and Surface Displacement, Bull. Seism. Soc. Am., 84, 974-1002.
Most read articles by the same author(s)