In June an onset of PP energy is observed from a storm in the southern Atlantic at day 2.5, as the storm builds so does the PP-stack, reaching a maximum at day 4.0, and then decaying until day 5.    From day 5.5 to day 6.7, PP waves are seen further south in the southern Atlantic, in good agreement with a storm in this region.  In both cases, P backprojection yields a less likely source region than PP backprojection, either landing on continents or oceanic regions without storms.


June movie