Aseismic zone and earthquake segmentation associated with a deep subducted seamount inSumatra

Nature Geoscience

Volumn 4, Issue 5, 2011, Pages 308-311

  Singh, Satish C ^a   Hananto, Nugroho ^a   Mukti, Maruf ^a   Robinson, David P ^b   Das, Shamita ^b   Chauhan, Ajay ^a   Carton, Helene ^c   Gratacos, Bruno ^d   Midnet, Stephan ^d   Djajadihardja, Yusuf ^e   Harjono, Heri ^f  

^a INSTITUT DE PHYSIQUE DU GLOBE DE PARIS   (France)

^b UNIVERSITY OF OXFORD   (United Kingdom)

^c Doherty Earth Observatory of Columbia University   (United States)

^d CGG   (France)

^e AGENCY FOR THE ASSESSMENT AND APPLICATION OF TECHNOLOGY BPPT   (Indonesia)

^f INDONESIAN INSTITUTE OF SCIENCES   (Indonesia)

Author keywords

[No Author keywords available]

Indexed keywords

EARTHQUAKE INTENSITY; EARTHQUAKE MECHANISM; EROSION; FOREARC BASIN; IMAGING METHOD; SEAMOUNT; SUBDUCTION; SUBDUCTION ZONE; THRUST;

GREATER SUNDA ISLANDS; SUMATRA; SUNDA ISLES;

EID: 79955633030     PISSN: 17520894     EISSN: 17520908     Source Type: Journal    
DOI: 10.1038/ngeo1119     Document Type: Article

References (29)

1. Cloos, M. Thrust type subduction zone earthquakes and seamount asperities: A physical model for earthquake rupture. Geology 20, 601-604 (1992).
2. Scholz, C. H. & Small, C. The effect of seamount subduction on seismic coupling. Geology 25, 487-490 (1997).
3. Kodaira, S., Takahashi, N., Nakanishi, A., Miura, S. & Kaneda, Y. Subducted seamount imaged in the rupture zone of the 1946 Nankaido earthquake. Science 289, 104-106 (2000). (Pubitemid 30463300)
4. Bilek, S. L., Schwartz, S. Y. & DeShon, H. R. Control of seafloor roughness on earthquake rupture behaviour. Geology 31, 455-458 (2003). (Pubitemid 36659071)
5. Robinson, D. P., Das, S. & Watts, A. B. Earthquake rupture stalled by subducting fracture zone. Science 312, 1203-1205 (2006). (Pubitemid 43801143)
6. Cummins, P. R., Baba, T., Kodaira, S. & Kaneda, Y. The 1946 Nankai earthquake and segmentation of the Nankai Trough. Phys. Earth Planet. Int. 132, 75-87 (2002).
7. Mochizuki, K., Yamada, T., Shinohara, M., Yamanaka, Y. & Kanazawa, T. Weak interplate coupling by seamounts and repeating M-7 earthquakes. Science 321, 1194-1197 (2008).
8. Abercrombie, R. E., Antolik, M. & Ekström, G. The June 2000 Mw 7.9 earthquake south of Sumatra: Deformation in the India-Australia Plate. J. Geophys. Res. 108, 2018 (2003).
9. Ranero, C.R. & van Huene, R. Subduction erosion along the Middle America convergent margin. Nature 404, 748-752 (2000). (Pubitemid 30212399)
10. Bangs, N. L. B., Gulick, S. P. S. & Shipley, T. H. Seamount subduction erosion in the Nankai Trough and its potential impact on the seismogenic zone. Geology 34, 701-704 (2006).
11. von Huene, R., Ranero, C. R. & Vannucchi, P. Generic model of subduction erosion. Geology 32, 913-916 (2004). (Pubitemid 39447935)
12. von Huene, R. When seamounts subduct. Science 321, 1165-1166 (2008).
13. Das, S. & Scholz, C. H. Why large earthquakes do not nucleate at shallow depth. Nature 305, 621-623 (1983). (Pubitemid 14286356)
14. Chlieh, M., Avouac, J-P., Sieh, K., Natawidjaja, D. H. & Galetzka, J. Investigation of interseismic strain accumulation along the Sunda megathrust, offshore Sumatra. J. Geophys. Res. 113, B05305 (2008).
15. Konca, A. O. et al. Partial rupture of a locked patch of the Sumatra megathrust during the 2007 earthquake sequence. Nature 456, 631-635 (2008).
16. Fitch, T. J. Plate convergence, transcurrent faults, and internal deformation adjacent to Southeast Asia and the western Pacific. J. Geophys. Res. 77, 4432-4462 (1972).
17. Prawirodirdjo, L., McCaffrey, R., Chadwell, C. D., Bock, Y. & Subarya, C. Geodetic observation of an earthquake cycle at the Sumatra subduction zone: Role of interseismic strain segmentation. J. Geophys. Res. 115, B03414 (2010).
18. Kopp, H., Flueh, E., Klaeschen, D., Bialas, J. & Reichert, C. Crustal structure of the central Sunda margin at the onset of oblique subduction. Geophys. J. Int. 147, 449-474 (2001). (Pubitemid 33033753)
19. Singh, S. C. et al. Evidence of active backthrusting at the NE Margin of Mentawai Islands, SW Sumatra. Geophys. J. Int. 180, 703-714 (2010).
20. Chauhan, A. et al. Seismic imaging of forearc backthrusts at northern Sumatra subduction zone. Geophys. J. Int. 179, 1772-1780 (2009).
21. Singh, S. C. et al. Seismic evidence for broken oceanic crust in the 2004 Sumatra earthquake epicentral region. Nature Geosci. 1, 777-781 (2008).
22. Dessa, J-X. et al. Megathrust earthquakes can nucleate in the forearc mantle: Evidence from the 2004 Sumatra event. Geology 37, 659-662 (2009).
23. Simoes, M., Avouac, J. P., Cattin, R. & Henry, P. Sumatra subduction zone: A case for a locked fault zone extending into the mantle. J. Geophys. Res. 109, B10402 (2004).
24. Schöffel, H-J. & Das, S. Fine details of the Wadati-Benioff zone under Indonesia and its geodynamic implications. J. Geophys. Res. 104, 13101-13114 (1999).
25. Dominguez, S., Malavieille, J. & Lallemand, S. E. Deformation of accretionary wedges in response to seamount subduction: Insights from sandbox experiments. Tectonics 19, 182-196 (2000).
26. Sclater, J. G. & Christie, P. A. F. Continental stretching: An explanation of the post-mid-Cretaceous subsidence of the Central North Sea basin. J. Geophys. Res. 85, 3711-3739 (1980).
27. Diament, M. et al. Mentawai fault zone off Sumatra-a new key to the geodynamics of western Indonesia. Geology 20, 259-262 (1992).
28. Cande, S. C. & Kent, D. V. Revised calibration of the geomagnetic polarity time scale for the late Cretaceous and Cenozoic. J. Geophys. Res. 100, 6093-6095 (1995).
29. Dewey, J. W. Seismic Studies with the Method of Joint Hypocenter Determination, PhD Thesis, Univ. of California, Berkeley (1971).