SOURCE PARAMETERS OF MODERATE AND STRONG EARTHQUAKES IN THE BROADER AREA OF ZAKYNTHOS ISLAND (W. GREECE) FROM REGIONAL AND TELESEISMIC DIGITAL RECORDINGS
Περίληψη
The source parameters of all the moderate and strong events that occurred in the broader area of Zakynthos Island for the period 1997–2009 are determined using two different techniques depending on epicentral distance. For the strong events we employed teleseismic body-wave modeling between 30° and 90°, while for moderate events a regional moment tensor inversion approach was used. In both cases we used broadband waveform data with a good signal-to-noise ratio. The calculated focal mechanisms are representative of the displacement and strain fields of the broader area. Those associated with the Cephalonia transform fault are consistent with dextral strike-slip motion. The area between the island of Zakynthos and the Western coast of Peloponnese is also characterized by strike–slip faulting, while reverse faulting is mainly observed south of Zakynthos Island. Using both techniques, we also retrieved the source parameters of the biggest events of the seismic sequence of April 2006 near the southern coast of Zakynthos Island. The depths of the located events of the sequence vary mainly between 10 and 25 km. The fault plane solutions revealed thrust type faulting in all cases, something which can be related with upward motions in the southern part of the Island observed by DGPS measurements.
Λεπτομέρειες άρθρου
- Πώς να δημιουργήσετε Αναφορές
-
Chousianitis, K., Agalos, A., Papadimitriou, P., Lagios, E., & Makropoulos, K. (2010). SOURCE PARAMETERS OF MODERATE AND STRONG EARTHQUAKES IN THE BROADER AREA OF ZAKYNTHOS ISLAND (W. GREECE) FROM REGIONAL AND TELESEISMIC DIGITAL RECORDINGS. Δελτίο της Ελληνικής Γεωλογικής Εταιρείας, 43(4), 2005–2014. https://doi.org/10.12681/bgsg.11391
- Ενότητα
- Σεισμολογία
Αυτή η εργασία είναι αδειοδοτημένη υπό το CC Αναφορά Δημιουργού – Μη Εμπορική Χρήση 4.0.
Οι συγγραφείς θα πρέπει να είναι σύμφωνοι με τα παρακάτω: Οι συγγραφείς των άρθρων που δημοσιεύονται στο περιοδικό διατηρούν τα δικαιώματα πνευματικής ιδιοκτησίας επί των άρθρων τους, δίνοντας στο περιοδικό το δικαίωμα της πρώτης δημοσίευσης. Άρθρα που δημοσιεύονται στο περιοδικό διατίθενται με άδεια Creative Commons 4.0 Non Commercial και σύμφωνα με την οποία μπορούν να χρησιμοποιούνται ελεύθερα, με αναφορά στο/στη συγγραφέα και στην πρώτη δημοσίευση για μη κερδοσκοπικούς σκοπούς. Οι συγγραφείς μπορούν να: Μοιραστούν — αντιγράψουν και αναδιανέμουν το υλικό με κάθε μέσο και τρόπο, Προσαρμόσουν — αναμείξουν, τροποποιήσουν και δημιουργήσουν πάνω στο υλικό.
Λήψεις
Τα δεδομένα λήψης δεν είναι ακόμη διαθέσιμα.
Αναφορές
Agalos A., Papadimitriou P. and Makropoulos K., 2008. Rupture Histories of Strong Earthquakes. 31st
General Assembly of the European Seismological Commission, held at the Creta Maris Conference
Center, Hersonissos, Crete Greece, Book of Short papers, p 9-16.
Aki, K. and Richards, P.G., 2002. Quantitative Seismology. University Science Book, 2nd edition, Sausalito,
California.
Anderson, H. and Jackson J., 1987. Active tectonics of the Adriatic region. Geophys. J. R. Astr. Soc., 91,
-983.
Bouchon M., 1979. Discrete wave number representation of elastic wave fields in three-space dimensions.
Journal of Geophysical Research, 84, 3609–3614.
Bouchon, M., 2003. A review of the discrete wavenumber method. Pure Appl. Geophys. 160, 445–465.
Chousianitis K., 2009. Seismic source properties and ground deformation study of the broader area of
Cephalonia and Zakynthos Islands using Geophysical and Space techniques. Doctorate Thesis, Department
of Geophysics-Geothermics, University of Athens, p.280 (in Greek).
Dreger, D.S. and Helmberger, D.V., 1993. Determination of source parameters at regional distances with
three component sparse network data, J. Geophys. Res., 98 , 8107–8125.
Fan, G., Ni, J.F. and Wallace, T.C., 1994. Active tectonics of the Pamirs and Karakorum, J. Geophys.
Res., 99 , 7131–7160.
Finetti, I. and Morreli C., 1973. Geophysical Exploration of the Mediterranean Sea. Boll. Geof. Teor. ed
Appl., 15, 263-341.
Fukuyama, E. and Dreger, D.S., 2000. Performance test of an automated moment tensor determination
system for the future “Tokai” earthquake. Earth Planets Space, 52, 383-392.
Futterman, W.I., 1962. Dispersive body waves. Journal of Geophysical Research, 67, 5279-5291.
Ηatzfeld, D., Pedotti, G., Hatzidimitrioiu, P. and Makropoulos, K., 1990. The strain pattern in the western
Hellenic arc deduced from a microearthquakes survey. Geophys. J. Int. 101, 181-202.
XLIII, No 4 – 2013
Herrmann, T. and Wang, G.Y., 1985. A comparison of synthetic seismograms. Bull. Seism. Soc. Am., 75, 41-56.
Ichinose, G.A., Anderson, J.G., Smith, K.D. and Zeng, Y., 2003. Source parameters of eastern California and
western Nevada earthquakes from regional moment tensor inversion, Bull. Seism. Soc. Am., 93, 61-84.
Jackson, J. and McKenzie, D., 1988. The relationship between plate motions and seismic moment tensors,
and the rates of active deformation in the Mediterranean and Middle East. Geophysical Journal of the
Royal Astronomical Society, 93, no.1, 45-73.
Jost, M.L. and Herrmann, R., 1989. A student’s guide to and review of moment tensors. Seism. Res. Lett.,
, 37-57.
Kanamori, H. and Stewart, G.S., 1976. The mechanism of the Guatemala earthquake of February 4, 1976,
revealed by teleseismic surface-wave and body-wave analysis. Eos, Transactions, American Geophysical
Union, 57, 950.
Kikuchi, M. and Kanamori, H., 1991. Inversion of complex body waves; III, Bull. Seismol. Soc. Am., 81,
-2350.
Kikuchi, M., Kanamori, H. and Satake, K., 1993. Source complexity of the 1988 Armenian earthquake;
evidence for a slow after-slip event, Journal of Geophysical Research, 98, 15,797-15,808.
Kissel, C. and Laj, C., 1988. The Tertiary geodynamical evolution of the Aegean arc: a paleomagnetic reconstruction.
Tectonophysics 146, 183-201.
Lagios E., Sakkas V., Papadimitriou P., Damiata B.N., Parcharidis I., Chousianitis K. and Vassilopoulou
S., 2006. Crustal deformation in the Central Ionian Islands (Greece): Results from DGPS and DInSAR
analyses (1995-2006). Tectonophysics, 444, 119-145.
Le Pichon, X. and Angelier, J., 1979. The Hellenic arc and trench system: a key to the noetectonic evolution
of the Eastern Mediterranean area. Tectonophysics 60, 1-42.
Makropoulos, K. and Burton, P., 1981. A catalogue of Seismicity in Greece and the Adjacent Areas. Geophys.
J. R. Astr. Soc., 65, 741-762, and Microfiche GJ65/1.
Mercier, J.-L., Sorel, D. and Simeakis, K., 1987. Changes in the state of stress in the overriding plate of
a subduction zone, the Aegean arc from the Pliocene to the Present, Ann. Tectonicae, 1, 20-39.
Papadimitriou, P., 1983. Etude de repliques de seismes de Corinthe (1981), Rapport de stage du DEA, IPG Paris.
Papadimitriou, P., 1988. Etude de la structure du manteau superieur de l’Europe et modelisation des ondes
de volume engendrees par des seismes egeens, Doctorat de l’ Universite Paris VII, Paris, France.
Papadimitriou, P., Kaviris, G. and Makropoulos, K., 2006. The Mw=6.3 2003 Lefkada earthquake
(Greece) and induced stress transfer changes, Tectonophysics, 423, 7–30.
Saikia, C.K., 1994. Modified frequency-wavenumber algorithm for regional seismograms using Filon’s
quadrature: modelling of Lg waves in eastern North America. Geophys. J. Int., 118, 142-158.
Saikia, C.K., Woods, B.B. and Thio, H.K., 2001. Calibration of the regional crustal waveguide and the
retrieval of source parameters using waveform modeling. Pure Appl. Geophys., 158, 1301–1338.
Scordilis, E.M., Karakaisis, G.F., Karacostas, B.G., Panagiotopoulos, D.G., Comninakis, P.E. and Papazachos,
B.C., 1985. Evidence for transform Faulting in the Ionian Sea: The Cephalonia Island earthquake
Sequence of 1983. PAGEOPH, 123, 388–397.
Thio, H.K. and Kanamori, H., 1995. Moment-tensor inversions for local earthquakes using surface waves
recorded at TERRAscope, Bull. Seismol. Soc. Am., 85 , 1021–1038.
Underhill, J.R., 1989. Late Cenozoic deformation of the Hellenide foreland, western Greece. Geol. Soc.
Am. Bull. 101, 613-634.
Wessel, P. and Smith, W.H.F., 1998. New improved version of the generic mapping tools released. Eos
Trans. AGU 79, 579.
Zeng, Y. and Anderson, J.G., 1995. A method for direct computation of the differential seismogram with
respect to the velocity change in a layered elastic solid. Bull. Seismol. Soc. Am., 85 , 300–307.
