Erratum
for
Skarlatoudis et al., BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 93 (6) 2591-2603.
Bulletin of the Seismological Society of America; December 2007; v. 97; no. 6;
p. 2219-2221; DOI: 10.1785/0120070176
© 2007 Seismological Society of America
Erratum to Empirical Peak Ground-Motion Predictive Relations for Shallow Earthquakes in Greece
A. A. Skarlatoudis,
C. B. Papazachos,
B. N. Margaris,
N. Theodulidis,
Ch. Papaioannou,
I. Kalogeras,
E. M. Scordilis, and
V. Karakostas
Geophysical Laboratory, University of Thessaloniki, P.O. Box 352-1, GR-54124, Thessaloniki, Greece
In a previously published article related to peak ground-motion attenuation in Greece (Skarlatoudis et al., 2003) equations (3a) and (3b) described the empirical peak ground velocity (PGV) predicting relation for shallow earthquakes in Greece. Since their publication these relations were used in some applications for the broader Aegean area and were also compared with independent results produced by other researchers. After significant differences recognized in these comparisons, the input data and all regression stages were checked again. This check resulted in the recognition of misprints in the PGV data set, which led to underestimating the predicted PGV levels, mostly at near source distances by a factor of 2–3.
After correcting the misprints and applying the same regression technique, as in Skarlatoudis et al. (2003), equations (3a) and (3b) became
 | (3a) |
 | (3b) |
where PGV is in cm/sec, Mw is the moment magnitude, R is the epicentral distance, h is the focal depth of each earthquake, S is the variable accounting for the local site conditions, and F is the variable referring to the effect of the faulting mechanism of the earthquakes in the predicting relations. Consequently the corresponding figures, Figures 4b, 5b, and 6b have been revised and are shown here.
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Figure 4. Comparison of the horizontal PGV empirical relations plotted together with the ±1 curves with the observed values, scaled to Mw 6.5. This is the corrected version of figure 4b in the original paper.
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Figure 5. Distribution of the residuals of peak velocity (PGV) in terms of distance. This is the corrected version of figure 5b in the original paper.
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Figure 6. Comparison of the PGV empirical relations, (black continuous line) with those proposed by Theodulidis (1991) (black dashed-dotted line) and Margaris et al. (2002) (black dashed line) for Greek data, for Mw 6.5 and rock soil conditions (UBC class B, S=0). This is the corrected version of figure 6b in the original paper.
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Manuscript received 10 July 2007
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References
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Margaris, B. N., C. B. Papazachos, Ch. Papaioanou, N. Theodoulidis, I. Kalogeras, and A. A. Skarlatoudis (2002). Empirical attenuation relations for the horizontal strong ground motion parameters of shallow earthquakes in Greece, in Proc. of the 12th European Conf. on Earthquake Engineering, 9–13 September, London.
Skarlatoudis, A. A., C. B. Papazachos, B. N. Margaris, N. Theodoulidis, C. H. Papaioannou, I. Kalogeras, E. M. Scordilis, and V. G. Karakostas (2003). Empirical peak ground motion predictive relations for shallow earthquakes in Greece, Bull. Seismol. Soc. Am. 93, 2591-2603.[Abstract/Free Full Text]
Theodulidis, N. P. (1991). Contribution to strong ground motion study in Greece, Ph.D. Thesis (in Greek), 500 pp.
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