Studia Geophysica et Geodaetica

, Volume 59, Issue 1, pp 51–57 | Cite as

Application of P-wave Mwp magnitude to earthquakes for tsunami early warning in and around South-Western Turkey

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Abstract

Tsunami warning centres inform the population who are located near and around coastal areas by determining the size and location of an earthquake. The Pacific Tsunami Early Warning System has used P-wave moment magnitude (Mwp) for the warning system for many years. A moment magnitude determination from the P-wave arrivals has the advantage of estimating the size of an earthquake within a couple of minutes, compared to other estimation procedures. The Eastern Mediterranean region is tectonically active area and has experienced many tsunami earthquakes in history. In this paper, the moment magnitude determination technique was used to calculate the moment magnitudes of events that occurred in the Eastern Mediterranean and near the coasts of Turkey with magnitudes between 5.5 and 6.8 and epicentral distance between about 100 and 1700 km. Mwp was calculated using seismic stations that were installed in the area and the number of stations used changed event by event. Their numbers were in the range of 11 to 71. Calculated Mwp values showed good compatibility with Global Centroid Moment Tensor Mw. The results of this study are encouraging for the early warning system that will be set up in the near future in the region.

Keywords

P-wave moment magnitude rapid seismic repor 

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References

  1. Fokaefs A. and Papadopoulos G., 2005. Historical earthquakes and tsunami sources in Eastern Mediterranean Sea. Geophys. Res. Abs., 7, 00732.Google Scholar
  2. Goldstein P., Dodge D., Firpo M. and Minner L., 2003. SAC2000: Signal processing and analysis tools for seismologists and engineers. In: Lee W.H.K., Kanamori H., Jennings P.C. and Kisslinger C. (Eds), International Handbook of Earthquake and Engineering Seismology. International Geophysics, 81, Part B, 1613–1614.CrossRefGoogle Scholar
  3. Goodman-Tchernov B.N., Dey H.W., Reinhardt E.G., McCoy F. and Mart Y., 2009. Tsunami waves generated by the Santorini eruption reached Eastern Mediterranean shores. Geology, 37, 943–946.CrossRefGoogle Scholar
  4. Hanks T. and Kanamori H., 1979. A moment magnitude scale. J. Geophys. Res., 84, 2348–2350.CrossRefGoogle Scholar
  5. Hirshorn B., Weinstein S. and Tsuboi S., 2013. On the application of Mwp in the near field and the March 11, 2011 Tohoku earthquake. Pure Appl. Geophys., 170, 975–991.CrossRefGoogle Scholar
  6. Kanamori H., 1977. The energy release in great earthquakes. J. Geophys. Res., 82, 2981–2987.CrossRefGoogle Scholar
  7. Kanjo K., Furudate T. and Tsuboi S., 2006. Application of Mwp to the great December 26, 2004 Sumatra earthquake. Earth Planets Space, 58, 121–126.CrossRefGoogle Scholar
  8. Le Pichon X., Lallemant S.J., Chamot-Rooke N., Lemeur D. and Pascal G., 2002. The Mediterranean Ridge backstop and the Hellenic nappes. Marine Geol., 186, 111–125.CrossRefGoogle Scholar
  9. Lomax A. and Michelini A., 2009. Tsunami early warning using source duration time. Geophys. Res. Lett., 36, L09306.CrossRefGoogle Scholar
  10. McClusky S., Balassanian S., Barka A., Demir C., Ergintav S., Georgiev I., Gürkan O., Hamburger M., Hurst K., Kahle H., Kastens K., Kekelidze G., King R., Kotzev V., Lenk O., Mahmoud S., Mishin A., Nadariya M., Ouzounis A., Paradissis D., Peter Y., Prilepin M., Reilinger R., Sanli I., Seeger H., Tealeb, A., Toksöz M.N. and Veis G., 2000. Global positioning system constraints on plate kinematics and dynamics in the eastern Mediterranean and Caucasus. J. Geophys. Res., 105, 695–719.Google Scholar
  11. Ozel N.M., Necmioglu O., Yalciner A.C., Kalafat D. and Erdik M., 2011. Tsunami hazard in the Eastern Mediterranean and its connected seas: Toward a Tsunami warning center in Turkey. Soil Dyn. Earthq. Eng., 31, 598–610.CrossRefGoogle Scholar
  12. Tezel T. and Yanik K., 2013. Improvement in Mwp magnitude determinations and applications to earthquakes in Turkey. Seismol. Res. Lett., 84, 991–996.CrossRefGoogle Scholar
  13. Tinti S., Armigliato A., Pagnoni G. and Zaniboni F., 2005. Scenarios of giant tsunamis of tectonic origin in the Mediterranean. ISET J. Earthq. Technol., 42, 171–188.Google Scholar
  14. Tsuboi S., Abe K., Takano K. and Yamanaka Y., 1995. Rapid determination of Mw from broadband P waveforms. Bull. Seismol. Soc. Amer., 83, 606–613.Google Scholar
  15. Tsuboi S., Whitmore P. M. and Sokolowski T.J., 1999. Application of Mwp to deep and teleseismic earthquakes. Bull. Seismol. Soc. Amer., 89, 1345–1351.Google Scholar
  16. Yolsal S., Taymaz T. and Yalçiner A.C., 2007. Understanding tsunamis, potential source regions and tsunami-prone mechanisms in the Eastern Mediterranean. Geol. Soc. London Spec. Publ., 291, 201–230.CrossRefGoogle Scholar
  17. Wessel P. and Smith W.H.F., 1998. New, improved version of Generic Mapping Tools released. EOS Trans. AGU, 79, 579.CrossRefGoogle Scholar
  18. Whitmore P.M., Tsuboi S., Hirshorn B. and Sokolowski T.J., 2002. Magnitude dependent correction for Mwp. Sci. Tsunami Hazards, 20, 187–192.Google Scholar

Copyright information

© Institute of Geophysics of the ASCR, v.v.i 2014

Authors and Affiliations

  1. 1.Department of Geophysical Engineering, Faculty of EngineeringÇanakkale Onsekiz Mart UniversityÇanakkaleTurkey

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