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![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/177765/5af246dbb20049e583691d126e632e1c_rgdaqm.png)
Note the huge amplitudes of the flexural waves and their dispersion relation: Short periods arrive first and long periods take forever. This is a general property of flexural waves in slabs and has also be observed in floating ice on Earth.
Another feature is the ocean, which is a very low velocity layer. The P-wave speed in the mantle is 5 times higher, so that antipodal body waves actually spend a third of their travel time crossing the ocean only!
More to follow in an upcoming JGR paper.