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2021 | OriginalPaper | Chapter

Spatial Variation of Precursory Seismic Quiescence Observed Before Earthquake from 01.04.2010 in the Region of Crete

Authors : Emil Oynakov, Dimcho Solakov, Irena Aleksandrova, Yordan Milkov

Published in: Environmental Protection and Disaster Risks

Publisher: Springer International Publishing

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Abstract

Statistical analysis was performed, which reveals statistical parameters of the seismic setting before the earthquake in the region of Crete (01.04.2011 with coordinates 26.56^o E, 35.64^o N; M_l = 6.2, h = 63 km and T₀ = 13: 29: 10.5). For this purpose, the spatial and temporal changes in the b-value and the value of the Z-seismic lull were estimated. The temporary change in the b-value shows that the average value of b decreased from 1.75 ± 0.02 between 1985 and 2002 to 1.4 ± 0.02 between 2003 and 2011. A significant decrease in the b-value and clear anomalies of calm in the Z-value in early 2011 were also observed in several neighbouring areas. The epicenter of the earthquake falls in an area with a relatively low value of the a-parameter estimated for the entire previous period. In the study area, the abnormal decreasing trend of the b-value may be an indicator of increased stress, and the increasing trend of the Z-value may indicate areas of calm before the studied earthquake.

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Wyss, M., Habermann, R.E.: Precursory seismic quiescence. Pure Appl. Geophys. 126, 319–332 (1988)CrossRef

Wyss, M., Martirosyan, A.: Seismic Quiescence Before the M 7, 1988. Spitak earthquake, Armenia (1998)

Console, R., Montuori, C., Murru, M.: Statistical assessment of seismicity patterns in Italy: are they precursors of subsequent events? J. Seismol. 4, 435–449 (2000)CrossRef

Wiemer, S., Wyss, M.: Seismic quiescence before the landers (M = 7.5) and big bear (M = 6.5), 1992 earthquakes. Bull. Seismol. Soc. Am 84(3), 900–916 (1994)

Tsukakoshi, Y., Shimazaki, K.: Decreased b-value prior to the M 6.2 Northern Miyagi, Japan, earthquake of 26 July 2003. Earth Planet. Space 60, 915–924 (2008)

Bridges, D.L., Gao, S.S.: Spatial variation of seismic b-values beneath Makushin Volcano, Unalaska Island. Alaska. Earth Planet Sci Lett 245, 408–415 (2006)CrossRef

Nuannin, P., Kulha´nek, O., Persson, L.: Spatial and temporal b-value anomalies preceding the devastating off coast of NW Sumatra earthquake of December 26, 2004. Geophys. Res. Lett. 32, L11307 (2005). https://doi.org/10.1029/2005gl022679

Wiemer, S., Wyss, M.: Mapping the frequency-magnitude distribution in asperities: an improved technique to calculate recurrence times? J. Geophys. Res. 102(15), 115–128 (1997)

Wyss, M., Stefansson, R.: Nucleation points of recent main shocks in southern Iceland mapped by b-values. Bull. Seismol. Soc. Am. 96, 599–608 (2006). https://doi.org/10.1785/0120040056

10.

Wu, Y.M., Chang, C.H., Zhao, L., Teng, T.L., Nakamura, M.: A comprehensive relocation of earthquakes in Taiwan from 1991 to 2005. Bull. Seismol. Soc. Am. 98(3), 1471–1481 (2008)CrossRef

11.

Gutenberg, B., Richter, C.F.: Frequency of earthquakes in California. Bull. Seismol. Soc. Am. 34, 185–188 (1944)CrossRef

12.

Utsu, T.: A method for determining the value of b in the formula log n a bM showing the magnitude-frequency relation for earthquakes. Geophys. Bull. Hokkaido Univ. 13, 99–103 (1965). (in Japanese with English summary)

13.

Schorlemmer, D., Wiemer, S., Wyss, M.: Earthquake statistics at Parkfield, Stationarity of b values. J. Geophys. Res. 109: B12307 (2004). https://doi.org/10.1029/2004jb003234

14.

Wiemer, S.: A program to analyse seismicity: ZMAP. Geophys. Res. Lett. 72, 373–382 (2001)

15.

Aki, K.: Maximum likelihood estimate of b in the formula log N = a-bM and its confidence limits. Bull. Earthq. Res. Inst. Tokyo Univ. 43, 237–239 (1965)

16.

Wiemer, S., Wyss, M.: Minimum magnitude of completeness in earthquake catalogs: examples from Alaska, the western United States, and Japan. Bull. Seismol. Soc. Am. 90(4), 859–869 (2000)CrossRef

17.

Wiemer, S., Wyss, M.: Mapping spatial variability of the frequency–magnitude distribution of earthquakes. Adv. Geophys. 45, 259–302; Wu YM, Chiao LY (2006) Seismic quiescence before the 1999 (2002)

18.

Habermann, R.E.: Man-made changes of seismicity rates. Bull. Seism. Soc. Am. 77, 141–159 (1987)

19.

Maeda, K., Wiemer, S.: Significance test for seismicity rate changes before the 1987 Chiba-toho-oki earthquake (M6.7). Japan. Ann. Geofis 42(5), 833–850 (1999)

20.

Damanik, R., Andriansyah Putra, H.E., Zen, M.T.: Variations of b-values in the Indian Ocean—Australian plate subduction in south Java Sea. In: Proceedings of the Bali 2010 International Geosciences Conference and Exposition, Bali, Indonesia, pp. 19–22 (2010)

21.

University of Athens- http://dggsl.geol.uoa.gr/en_index.html

22.

Taylor, S.R., Denny, M.D.: An analysis of spectral differences between Nevada Test Site and Shagan River nuclear explosions. J. Geophys. Res. Solid Earth 96(B4), 6237–6245 (1991)CrossRef

23.

Woessner, J., Wiemer, S.: Assessing the quality of earthquake catalogues: estimating the magnitude of completeness and its uncertaint. Bull. Seismol. Soc. Am. 95(2), 684–698 (2005). https://doi.org/10.1785/0120040007

24.

Schorlemmer, D., Woessner, J.: Probability of detecting an earthquake. Bull. Seismol. Soc. Am. 98(5), 2103–2117 (2008). https://doi.org/10.1785/0120070105

25.

Görgün, E., Zang, A., Bohnhoff, M., Milkereit, C., Dresen, G.: Analysis of Izmit aftershocks 25 days before the November 12th 1999 Düzce earthquake. Turkey. Tectonophysics 474(3–4), 507–515 (2009)CrossRef

26.

Schorlemmer, D., Neri, G., Wiemer, S., Mostaccio, A.: Stability and significance tests for b-value anomalies: example from the Tyrrhenian Sea. Geophys. Res. Lett. 30(16), 1835 (2003). https://doi.org/10.1029/2003GL017335

27.

Westerhaus, M., Wyss, M., Yilmaz, R., Zschau, J.: Correlating variations of b values and crustal deformation during the 1990s may have pinpointed the rupture initiation of the Mw = 7.4 Izmit earthquake of 1999 August 17. Geophys. J. Int. 148, 139–152 (2002)

28.

Motaghi, K., Hessami, K., Tatar, M.: Pattern recognition of major asperities using local recurrence time in Alborz Mountains, Northern Iran. J. Seismol. 14, 787–802 (2010). https://doi.org/10.1007/s10950-0109201-z

29.

Wyss M., Martirosyan A.H.: Seismic quiescence before the M 7, 1988, Spitak earthquake, Armenia Geophys. J. Int 134(2), 329–340 (1998). https://doi.org/10.1046/j.1365-246x.1998.00543.x

Title: Spatial Variation of Precursory Seismic Quiescence Observed Before Earthquake from 01.04.2010 in the Region of Crete
Authors: Emil Oynakov
Dimcho Solakov
Irena Aleksandrova
Yordan Milkov
Publisher: Springer International Publishing
Book: Environmental Protection and Disaster Risks
Print ISBN: 978-3-030-70189-5

Electronic ISBN: 978-3-030-70190-1

Copyright Year: 2021
DOI: https://doi.org/10.1007/978-3-030-70190-1_16