Cool video, but it would be much cooler if there was some idea of the timescale (i.e. how often do these waves occur?). I doubt that it's shown real-time; perhaps 10x or 100x?
And, I've been searching for the actual study/paper, but with no success. 'Twould be good for the BU press blurb to link to it...
Final (need $$): https://www.science.org/doi/10.1126/science.aax5440