Rupture along the Great Sumatran fault, Indonesia, during the earthquakes of 1926 and 1943
Abstract
While investigating features of Quaternary displacement along the Great Sumatran fault zone in the Padang Highlands of Sumatra, Indonesia (Figure 1), the authors incidentally came across heretofore unreported evidence of significant surficial displacements along the fault during the M_s = 6¾ earthquake of 28 June 1926 and the M_s = 7.6 earthquake of 9 June 1943. In both cases, eyewitness reports by long-term local residents allowed unequivocal documentation of the location and nature of the surficial fault displacements associated with the earthquakes, although it was only through the use of vertical aerial photographs to locate the active fault trace that it was possible to concentrate the questioning in promising areas. In every case, it was thus possible to locate the primary active fault trace to within a few hundred meters before commencing the search for local eyewitnesses.
Additional Information
© 1985, by the Seismological Society of America. Manuscript received 10 October 1984. In performing our field work in Sumatra, we appreciate the encouragement and support of John Katili, Director General of Geology and Mineral Resources of Indonesia. Hiroo Kanamori helped us considerably in the seismological interpretations.Attached Files
Published - bssa0750010313.pdf
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Additional details
- Eprint ID
- 49136
- Resolver ID
- CaltechAUTHORS:20140902-141119912
- Created
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2014-09-03Created from EPrint's datestamp field
- Updated
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2023-09-26Created from EPrint's last_modified field
- Other Numbering System Name
- Caltech Seismological Laboratory
- Other Numbering System Identifier
- 4108