Extended Data Fig. 2: Time stack of the radially-sorted, window-averaged, and low-pass filtered GOES-17 satellite data.
From: Diverse tsunamigenesis triggered by the Hunga Tonga-Hunga Ha’apai eruption

Time series are given at numerous time-stamps on January 15, as given along the right edge of the figure. The peak of the (Lamb wave) pressure pulse crest for each time series is given by the red dots. The distance coordinate of the red dot in each time series divided by the time since generation yields the time-averaged pulse speed, while the difference in successive pulse crest locations divided by the time between the two images (10 min) gives the instantaneous speed of the pulse, or the celerity. GOES-17 data provided by NOAA.