CaltechAUTHORS
Published May 20, 2005 | Version Supplemental Material
Journal Article Open

The Great Sumatra-Andaman Earthquake of 26 December 2004

Creators

  • 1. ROR icon University of California, Santa Cruz
  • 2. ROR icon California Institute of Technology
  • 3. ROR icon Pennsylvania State University
  • 4. ROR icon Harvard University
  • 5. ROR icon New Mexico Institute of Mining and Technology
  • 6. ROR icon University of Arizona
  • 7. ROR icon University of Wisconsin–Madison
  • 8. ROR icon Miami University
  • 9. ROR icon Geological Survey of Japan
  • 10. ROR icon United States Geological Survey

Abstract

The two largest earthquakes of the past 40 years ruptured a 1600-kilometer-long portion of the fault boundary between the Indo-Australian and southeastern Eurasian plates on 26 December 2004 [seismic moment magnitude (M_w) = 9.1 to 9.3] and 28 March 2005 (M_w = 8.6). The first event generated a tsunami that caused more than 283,000 deaths. Fault slip of up to 15 meters occurred near Banda Aceh, Sumatra, but to the north, along the Nicobar and Andaman Islands, rapid slip was much smaller. Tsunami and geodetic observations indicate that additional slow slip occurred in the north over a time scale of 50 minutes or longer.

Additional Information

© 2005 American Association for the Advancement of Science. Received 14 March 2005; accepted 25 April 2005. This work was supported in part by the U.S. National Science Foundation under grants EAR-0125595, EAR-0337495, and EAR-0207608. Seismic waveform data from the Global Seismographic Network (funded by NSF under Cooperative Agreement EAR-0004370 and USGS) were obtained from the Incorporated Research Institutions for Seismology (IRIS) Data Management System. Jason data were provided by Lee-Lueng Fu of the Jet Propulsion Laboratory in Pasadena, CA.

Attached Files

Supplemental Material - 1112250s1.mov

Supplemental Material - 1112250s2.mov

Supplemental Material - Lay_SOM.pdf

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Lay_SOM.pdf

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Additional details

Identifiers

Eprint ID
20879
Resolver ID
CaltechAUTHORS:20101118-091748150

Funding

NSF
EAR-0125595
NSF
EAR-0337495
NSF
EAR-0207608

Dates

Created
2010-11-18
Created from EPrint's datestamp field
Updated
2023-04-19
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Caltech Tectonics Observatory , Division of Geological and Planetary Sciences (GPS)
Other Numbering System Name
Caltech Tectonics Observatory
Other Numbering System Identifier
16