3D Visualization of Recent Sumatra Earthquake |
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Scientists at the Scripps Institution of Oceanography have created an interactive three-dimensional visualization of the 28 March 2005 magnitude 8.7 earthquake in Sumatra. The visualization shows the earthquake's hypocenter and aftershocks recorded until 29 March 2005, and compares it with the location of the 26 December 2004 magnitude 9 event and the consequent seismicity in that region. 
To view this visualization, viewers need to download and install the free viewer program iView3D (http://www.ivs3d.com/products/iview3d). Viewers can rotate, zoom in and out, or pan around the data set. For detailed instructions, refer to the “Help” menu after launching iView3D. The 26 December 2004 and the 28 March 2005 events are shown as red diamonds in the scene (the deeper diamond represents the 28 March event). The orange spheres represent aftershocks (magnitudes 4.7 to 6.1) in the region since 28 March 2005, and the gray spheres indicate aftershocks from the December event. The yellow spheres on the surface show the fault rupture due to the December event, and the purple cross-hairs on the surface indicate the possible error in the rupture location. An updated scene file related to this event will be available on the Scripps Institution of Oceanography Visualization center Web page: http://siovizcenter.ucsd.edu/library/Tsunami/tsunami.htm. The 5 April 2005 issue of Eos will include a news article about this visualization. Download the visualization at http://www.agu.org/pubs/eos/topics/20050330/20050411.scene [17MB].
—Atul Nayak and Debi Kilb
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