Electronic Supplement to
The Great Intraplate Earthquakes of 11 April 2012: En Echelon and Conjugate Fault Ruptures on an Emerging Indian-Australian Plate Boundary

by Han Yue, Thorne Lay, Keith Koper

 

Supplementary Materials

This electronic supplement provides supplementary Quicktime movies showing short-period back-projections for the Mw 8.6 and Mw 8.2 events of 11 April 2012.



Teleseismic P-Wave Back-Projection Animations

Short-period P wave energy filtered from broadband recordings in Europe and Japan are back-projected to the source region assuming a spatial grid of possible source locations. Fourth-root stacking of the signals at each location identifies locations of coherent short-period seismic radiation.


Auxillary Movie 01

Mainshock backprojection animation. QuickTime (.mov) animation of short-period P wave back-projections for the 11 April 2012 Mw 8.6 mainshock event using stations in Europe and Japan. The left panel is for European stations filtered in the 0.5-2.0 Hz band. This corresponds to the information in Figure 2b,c. The middle panel is for the same European recordings filtered in the 0.1-0.5 Hz band. The right panel is for the F-net broadband recordings in Japan filtered in the 0.5-2.0 Hz band. [H.264 Encoded QuickTime Movie; ~4 MB].

Auxillary Movie 02

Mw 8.2 Aftershock backprojection animation. QuickTime (.mov) animation of short-period P wave back-projections for the 11 April 2012 Mw 8.2 aftershock event using stations in Europe and Japan. The left panel is for European stations filtered in the 0.5-2.0 Hz band. This corresponds ot the information in Figure 2d. The middle panel is for the same European recordings filtered in the 0.1-0.5 Hz band. The right panel is for the F-net broadband recordings in Japan filtered in the 0.5-2.0 Hz band. [H.264 Encoded QuickTime Movie; ~2.3 MB].




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