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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:45 |
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Conference: Bucharest University Faculty of Physics 2018 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Emphirical relations for the estimations of seismogenetic source parameters
Authors:
Eduard Gabriel CONSTANTINESCU(1)
Affiliation:
1) National Institute for Earth Physics, No. 1 Calugareni Street, Magurele, Ilfov, Romania.
E-mail
edi.constantinescu@infp.ro
Keywords:
seismic source, slip per event, source width, source length, seismic moment, moment magnitude.
Abstract:
This paper presents the empirical relations that estimates seismic source parameters such as: slip per event, fault rupture length, fault rupture width and the dislocated surface size. The empirical relation selected for the present paper are those developed by Wells and Coppersmith (1994), Bath and Duda (1964) and Hanks and Kanamori (1979). Using the above relations, parameter values were calculated for 24 known and well documented seismogenetic sources. Also, a brief comparison between results obtained using these relations and results published for the same seismogenetic source, was made. The results have shown significant differences between published and calculated parameter values. These results lead to the conclusion that additional constrains implied by the region’s geology and tectonics were used for a better estimation of the published seismogenetic source parameters. Further more constrains of similar nature could be applied for estimation of such parameters for less studied seismogenetic sources.
References:
Hanks T. C.,Kanamori H. "A Moment Magnitude Scale", Journal of Geophysical Research, Vol. 84, no. B5, 1979.
Wells D.L., Coppersmith K.J. "New empirical Relationship among Magnitude, Rupture Lenght, Rupture Width, Rupture Area and Surface Displacement", Bulletin of the Seismological Society of America, Vol. 84, No. 4, pp.974-1002, 1994.
Kanamori H., Anderson D.L., "Theoretical Basis of some Empirical Relations in Seismology",Bulletin of the Seismological Society of America, Vol. 65, No. 5, pp.1073-1095, 1975.
“New Manual of Seismological Observatory Practice” – NMSOP (2002), revised version, electronically published 2009, IASPEI.
Peter M. Shearer, “Introduction to Seismology – Second Edition,” Scripps Instituttion of Oceanography, University of California, San Diego, Cambridge University Press, 2009.
Basili R., Valensise G., Vannoli P., Burrato P. Fracassi U., Mariano S., Tiberti M., Boschi E., “The Database of Individual Seismogenic Sources (DISS), version 3: Summarizing 20 years of reserch on Italy’s earthquake geology”, Tectonophysics 453 (2008) 20-43.
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