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High Quality GIF Animation (~15 MB)
Propagation of rupture front as imaged by the Hi-Net array. The plotted quantity is the squared amplitude of the back-projected stacks, i.e., proportional to released energy at high frequencies.
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Rupture Length = ~1300 km Rupture Area = ~210 000 km2 The red contoured area shows the rupture area, with darker red colours indicating higher energy release. The black star indicates the mainshock epicentre, and the red dots give the locations of the first month of aftershocks. The surface topography and bathymetry obtained from ETOPO2 are used as the background. |