Stress studies in the Central Alborz by inversion of earthquake focal mechanism data

Pourbeyranvand, S.

doi:10.1007/s11600-018-0207-1

Artykuł - szczegóły

Tytuł artykułu

Stress studies in the Central Alborz by inversion of earthquake focal mechanism data

Autorzy

Pourbeyranvand S.

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-018-0207-1

Warianty tytułu

Języki publikacji

Abstrakty

The Alborz is one of the most important seismotectonic provinces in Iran. Furthermore, emplacement of Tehran as a mega city in southern part of the Alborz intensifies the seismic vulnerability in this area. In this study, the focal mechanism data from teleseismic and local seismic networks are used for stress tensor inversion. The earthquake focal mechanisms in the Central Alborz are divided into several groups with respect to their location. Two different stress tensor inversions, linear and nonlinear, are used for obtaining the principal stress orientations. The results show spatial variations in tectonic stress field, consistent with fault orientations and faulting mechanisms. The maximum compressional stress directions obtained in this study are confirmed by fast S-wave polarization axes reported by a previous shear wave splitting study. The maximum horizontal stress directions are also compared with GPS strain rates. The results indicate a partitioning of deformation in the area due to regional stresses along preexisting faults.

Słowa kluczowe

deformation partitioning earthquake focal mechanism inversion stress shear wave splitting

podział na deformacje trzęsienie ziemi mechanizm ogniskowy odwrócenie naprężenie rozdzielenie fali poprzecznej

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2018

Tom

Vol. 66, no. 6

Strony

1273--1290

Opis fizyczny

Bibliogr. 45 poz.

Twórcy

autor

Pourbeyranvand S.

beyranvand@iiees.ac.ir

Seismology Department, International Institute of Earthquake Engineering and Seismology, Tehran, Iran

Bibliografia

1. Abbassi A, Nasrabadi A, Tatar M, Yaminifard F, Abbassi M, Hatzfeld D, Priestley K (2010) Crustal velocity structure in the southern edge of the Central Alborz (Iran). J Geodyn 49(2):68–78. https://doi.org/10.1016/j.jog.2009.09.044
2. Alavi M (1996) Tectonostratigraphic synthesis and structural style of the Alborz mountain system in northern Iran. J Geodyn 21(1):1–33
3. Allen M, Ghassemi MR, Sharabi M, Qorashi M (2003) Accommodation of late Cenozoic oblique shortening in the Alborz range, Iran. J Struct Geol 25:659–672
4. Ambraseys NN, Melville CP (1982) A history of Persian earthquakes. Cambridge earth science series. Cambridge University Press, London, p 212
5. Berberian M (1983) The southern Caspian: a compressional depression floored by a trapped, modified oceanic crust. Can J Earth Sci 20(2):163–183
6. Berberian M, King GCP (1981) Towards a paleogeography and tectonic evolution of Iran. Can J Earth Sci 18:210–265
7. Berberian M, Walker R (2010) The Rudbar Mw 7.3 earthquake of 1990 June 20; seismotectonics, coseismic and geomorphic displacements, and historic earthquakes of the western ‘High-Alborz’, Iran. Geophys J Int 182:1577–1602. https://doi.org/10.1111/j.1365-246X.2010.04705.x
8. Berberian M, Yeats RS (2001) Contribution of archaeological data to studies of earthquake history in the Iranian Plateau. J Struct Geol 23:563–584
9. Djamour Y, Vernant P, Bayer R, Nankali HR, Ritz JF, Hinderer J, Hatam Y, Luck B, Moigne N, Sedighi M, Khorrami F (2010) GPS and gravity constraints on continental deformation in the Alborz mountain range, Iran. Geophys J Int 183:1287–1301
10. Ekström G, Nettles M, Dziewonski AM (2012) The global CMT project 2004–2010: Centroid-moment tensors for 13,017 earthquakes. Phys Earth Planet Inter 200–201:1–9. https://doi.org/10.1016/j.pepi.2012.04.002
11. Engdahl ER, Van der Hilst R, Buland R (1998) Global teleseismic earthquake relocation with improved travel times and procedures for depth determination. Bull Seismol Soc Am 88:722–743
12. Gephart JW, Forsyth DW (1984) An improved method for determining the regional stress tensor using earthquake focal mechanism data: application to the San Fernando earthquake sequence. J Geophys Res 89:9305–9320
13. Gillard D, Wyss M (1995) Comparison of strain and stress tensor orientation: application to Iran and Southern California. J Geophys Res Solid Earth 100(B11):22197–22213
14. Hardebeck J, Hauksson E (2001) Stress orientations obtained from earthquake focal mechanisms: what are appropriate uncertainty estimates? Bull Seismol Soc Am 91(2):250–262
15. Hollingsworth J, Nazari H, Ritz JF, Salamati R, Talebian M, Bahroudi A, Walker R, Rizza M, Jackson J (2010) Active tectonics of the east Alborz mountains, NE Iran: Rupture of the left-lateral Astaneh fault system during the great 856 A.D. Qumis earthquake. J Geophys Res. https://doi.org/10.1029/2009jb007185
16. Jackson J, Priestley K, Allen M, Berberian M (2002) Active tectonics of the South Caspian Basin. Geophys J Int 148:214–245
17. Javidfakhr B, Bellier O, Shabanian E, Siame L, Léanni L, D Bourlès, Ahmadian S (2011) Fault kinematics and active tectonics at the southeastern boundary of the eastern Alborz (Abr and Khij fault zones): geodynamic implications for NNE Iran. J Geodyn 52:290–303
18. Kagan YY (1991) 3-D rotation of double-couple earthquake sources. Geophys J Int 106:709–716
19. Keiding M, Lund B, Arnadottir Th (2009) Earthquakes, stress, and strain along an obliquely divergent plate boundary: Reykjanes Peninsula, Southwest Iceland. J Geophys Res. https://doi.org/10.1029/2008jb006253
20. Khorrami F, Hesami Kh, Nankali HR, Tavakoli F (2012) Geosciences. Geol Surv Iran 82:223–230
21. Lund B, Böđvarsson R (2002) Correlation of microearthquake body-wave spectral amplitudes. Bull Seismol Soc Am 92(6):2419–2433
22. Lund B, Slunga R (1999) Stress tensor inversion using detailed microearthquake information and stability constraints: application to Olfus in southwest Iceland. J Geophys Res 104(B7):14947–14964
23. Lund B, Townend J (2007) Calculating horizontal stress orientations with full or partial knowledge of the tectonic stress tensor. Geophys J Int 170:1328–1335. https://doi.org/10.1111/j.1365-246X.2007.03468.x
24. Masson F, Djamour Y, Van Gorp S, Chéry J, Tatar M, Tavakoli F, Nankali H, Vernant P (2006) Extension in NW Iran driven by the motion of the South Caspian Basin. Earth Planet Sci Lett 252(1–2):180–188. https://doi.org/10.1016/j.epsl.2006.09.038
25. Michael AJ (1984) Determination of stress from slip data: faults and folds. J Geophys Res 89(B13):11517–11526
26. Mirzayi Suzani M, Shahidi A, Ramezani Omali R, Alizadeh Suri F (2016) Geosciences. Geol Surv Iran 95:39–48
27. Motavalli-Anbaran S, Zeyen H, Brunet M, Ardestani VE (2011) Crustal and lithospheric structure of the Alborz Mountains, Iran and surrounding areas from integrated geophysical modeling. Tectonics. https://doi.org/10.1029/2011tc002934
28. Musumeci C, Patanè D, Scarfĭ L, Gresta S (2005) Stress directions and shear-wave anisotropy: observations from local earthquakes in Southeastern Sicily, Italy. Bull Seismol Soc Am 95(4):1359–1374. https://doi.org/10.1785/0120040108
29. Naimi-Ghassabian N, Khatib M, Nazari H, Heyhat M (2015) Present-day tectonic regime and stress patterns from the formal inversion of focal mechanism data, in the North of Central–East Iran Blocks. J Afr Earth Sci 111:113–126. https://doi.org/10.1016/j.jafrearsci.2015.07.018
30. Nemati M, Hatzfeld D, Gheitanchi MR, Sadidkhouy A, Mirzaei N (2011) Microseismicity and seismotectonics of the Firuzkuh and Astaneh faults (East Alborz, Iran). Tectonophysics 506(1–4):11–21. https://doi.org/10.1016/j.tecto.2011.04.007
31. Nemati M, Hollingsworth J, Zhan Z, Bolourchi MJ, Talebian M (2013) Microseismicity and seismotectonics of the South Caspian Lowlands, NE Iran. Geophys J Int 193(3):1053–1070. https://doi.org/10.1093/gji/ggs114
32. Radjaee A, Rham D, Mokhtari M, Tatar M, Priestley K, Hatzfeld D (2010) Variation of Moho depth in the central part of the Alborz. Geophys J Int 181:173–184. https://doi.org/10.1111/j.1365-246X.2010.04518.x
33. Raeesi M, Zarifi Z, Nilfouroushan F, Boroujeni SA, Tiampo K (2016) Quantitative analysis of seismicity in Iran. Pure Appl Geophys 174(3):793–833. https://doi.org/10.1007/s00024-016-1435-4
34. Ritz J-F, Nazari H, Ghassemi A, Salamati R, Shafei A, Solaymani S, Vernant P (2006) Active transtension inside central Alborz: a new insight into northern Iran-southern Caspian geodynamics. Geology 34(6):477–480
35. Sadidkhouy A, Javan-Doloei G, Siahkoohi HR (2008) Seismic anisotropy in the crust and upper mantle of the Central Alborz Region, Iran. Tectonophysics 456(3–4):194–205
36. Shabanian E, Bellier O, Abbassi MR, Siame L, Farbod Y (2010) Plio-Quaternary stress states in NE Iran: Kopeh Dagh and Allah Dagh-Binalud mountain ranges. Tectonophysics 480(1–4):280–304
37. Snoke JA, Munsey JW, Teague AC, Bollinger GA (1984) A program for focal mechanism determination by combined use of polarity and SV -P amplitude ratio data, Earthquake Notes, 55, #3, 15
38. Stocklin J (1974) Possible ancient continental margin in Iran. In: Burke C, Drake C (eds) Geology of continental margins. Springer, New York, pp 873–877
39. Tatar M, Jackson J, Hatzfeld D, Bergman E (2007) The 28 May 2004 Baladeh earthquake (Mw 6.2) in the Alborz, Iran: implications for Tehran and the geology of the South Caspian Basin margin. Geophys J Int 170:249–261
40. Tatar M, Hatzfeld D, Abbassi A, Yamini Fard F (2012) Microseismicity and seismotectonics around the Mosha fault (Central Alborz, Iran). Tectonophysics 544–545:50–59
41. Vavryčuk V (2014) Iterative joint inversion for stress and fault orientations from focal mechanisms. Geophys J Int 199(1):69–77. https://doi.org/10.1093/gji/ggu224
42. Vavrycuk V, Bouskova A (2008) S-wave splitting from records of local micro-earthquakes in West Bohemia/Vogtland: an indicator of complex crustal anisotropy. Stud Geophys Geod 52:631–650. https://doi.org/10.1007/s11200-008-0041-z
43. Vernant Ph, Nilforoushan F, Che´ry J, Bayer Y, Djamour R, Massona F, Nankali H, Ritz JF, Sedighi M, Tavakoli F (2004) Deciphering oblique shortening of central Alborz in Iran using geodetic data, Earth planet. Sci Lett 223:177–185
44. Zanchi A, Berra F, Mattei M, Ghassemi M, Sabouri J (2006) Inversion tectonics in central Alborz, Iran. J Struct Geol 28:2023–2037
45. Zarifi Z, Nilfouroushan F, Raeesi M (2014) Crustal stress map of Iran: insight from seismic and geodetic computations. Pure Appl Geophys 171(7):1219–1236

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-4d6add62-86b3-40ce-bdd3-20a1b2151319