Energy radiation from the Sumatra earthquake

Sidao Ni (), Hiroo Kanamori and Don Helmberger
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Sidao Ni: School of Earth and Space Sciences, University of Science and Technology of China, Hefei
Hiroo Kanamori: Tectonics Observatory, California Institute of Technology
Don Helmberger: Tectonics Observatory, California Institute of Technology

Nature, 2005, vol. 434, issue 7033, 582-582

Abstract: Abstract We determined the duration of high-frequency energy radiation from Indonesia's great Sumatra–Andaman earthquake (26 December 2004) to be about 500 seconds. This duration can be translated into a rupture length of about 1,200 km, which is more than twice as long as that inferred from body-wave analyses performed soon after the event. Our analysis was able rapidly to define the extent of rupture, thereby aiding the assessment of seismic hazard in the immediate future.

Date: 2005
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DOI: 10.1038/434582a

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