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Tracking the rupture of the Mw = 9.3 Sumatra earthquake over 1,150 km at teleseismic distance

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  • Frank Krüger

    (University of Potsdam)

  • Matthias Ohrnberger

    (University of Potsdam)

Abstract

Distant signals from Sumatra Two studies published this week view the earthquake that caused the devastating Indian Ocean tsunami of last December from a distance. Data from Japan's Hi-Net seismic array show that the rupture propagated in one direction, taking 8 minutes to travel 1,300 km north at 2.8 km per second. The calculations are based on the first seismic waves to reach the array; this monitoring system could in future be used to profile large earthquakes within minutes of their occurrence. Data from the German Regional Seismic Network, 9,000 km from the event, suggest that the rupture propagated at between 2.4 and 2.8 km per second initially, before slowing as it turned north.

Suggested Citation

  • Frank Krüger & Matthias Ohrnberger, 2005. "Tracking the rupture of the Mw = 9.3 Sumatra earthquake over 1,150 km at teleseismic distance," Nature, Nature, vol. 435(7044), pages 937-939, June.
    • Handle: RePEc:nat:nature:v:435:y:2005:i:7044:d:10.1038_nature03696
    DOI: 10.1038/nature03696
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    Cited by:

    1. Basab Mukhopadhyay & Sujit Dasgupta & M. Fnais & Manoj Mukhopadhyay, 2011. "Modelling the pore fluid diffusion process in aftershock initiation for 2004 Sumatra earthquake: implications for marine geohazard estimation in the Andaman region," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 57(1), pages 39-49, April.
    2. Sascha Brune & Stefan Ladage & Andrey Babeyko & Christian Müller & Heidrun Kopp & Stephan Sobolev, 2010. "Submarine landslides at the eastern Sunda margin: observations and tsunami impact assessment," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 54(2), pages 547-562, August.

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