The Tectonic Framework of the Sumatran Subduction Zone

@article{Mccaffrey2009TheTF,
  title={The Tectonic Framework of the Sumatran Subduction Zone},
  author={R. Mccaffrey},
  journal={Annual Review of Earth and Planetary Sciences},
  year={2009},
  volume={37},
  pages={345-366}
}
  • R. Mccaffrey
  • Published 2009
  • Geology
  • Annual Review of Earth and Planetary Sciences
The great Aceh-Andaman earthquake of December 26, 2004 and its tragic consequences brought the Sumatran region and its active tectonics into the world’s focus. The plate tectonic setting of Sumatra has been as it is today for tens of millions of years, and catastrophic geologic events have likely been plentiful. The immaturity of our understanding of great earthquakes and other types of geologic hazards contributed to the surprise regarding the location of the 2004 earthquake. The timing… Expand
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References

SHOWING 1-10 OF 98 REFERENCES
Geodetic observations of interseismic strain segmentation at the Sumatra Subduction Zone
Deformation above the Sumatra subduction zone, revealed by Global Positioning System (GPS) geodetic surveys, shows nearly complete coupling of the forearc to the subducting plate south of 0.5°S andExpand
Seismology: Earthquake risk on the Sunda trench
TLDR
Calculations show that stresses imposed by the second rupture have brought closer to failure the megathrust immediately to the south, under the Batu and Mentawai islands, and have expanded the area of increased stress on the Sumatra fault. Expand
Neotectonics of the Sumatran fault, Indonesia
The 1900-km-long, trench-parallel Sumatran fault accommodates a significant amount of the right-lateral component of oblique convergence between the Eurasian and Indian/Australian plates from 10°N toExpand
Seismic history and seismotectonics of the Sunda Arc
Historic records of the last 300 years reveal two great interplate earthquakes (1833, MW = 8¾ 1861, MW = 8¼–8½), which ruptured major segments of the Sumatra fore arc in western Indonesia; aExpand
Mentawai fault zone off Sumatra: A new key to the geodynamics of western Indonesia
The geodynamic evolution of the western part of the Sunda arc is controlled by the change from frontal subduction of the Indo-Australian plate along Java to oblique subduction along Sumatra. ThisExpand
Deformation and Slip Along the Sunda Megathrust in the Great 2005 Nias-Simeulue Earthquake
TLDR
Measurements from coral microatolls and Global Positioning System stations reveal trench-parallel belts of uplift up to 3 meters high on the outer-arc islands above the rupture and a 1-meter-deep subsidence trough farther from the trench. Expand
Plate-boundary deformation associated with the great Sumatra–Andaman earthquake
TLDR
Estimates of the ground displacement associated with the Sumatra–Andaman earthquake are reported, using near-field Global Positioning System surveys in northwestern Sumatra combined with in situ and remote observations of the vertical motion of coral reefs, to show that the earthquake was generated by rupture of the Sunda subduction megathrust over a distance of >1,500 kilometres and a width of <150  Kilometres. Expand
Ultralong Period Seismic Study of the December 2004 Indian Ocean Earthquake and Implications for Regional Tectonics and the Subduction Process
Analysis of the earth's longest period normal modes shows that the December 2004 Sumatra-Andaman earthquake was much larger (Mw 9.3) than ini- tially inferred from surface-wave data and involved slipExpand
Indonesian earthquake: Earthquake risk from co-seismic stress
TLDR
This work has calculated the distributions of co-seismic stress on the contiguous Sunda trench subduction zone, as well as on the neighbouring, vertical strike–slip Sumatra fault, and finds an increase in stress on both structures that significantly boosts the already considerable earthquake hazard posed by them. Expand
Tectonics of the Indonesian Region
The plate-tectonic evolution of a region can be deduced by following the assumptions that subduction zones are characterized by ophiolite, melange, wildflysch, and blueschist, that intermediate andExpand
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