Individual wave propagations in ionosphere and troposphere triggered by the Hunga Tonga-Hunga Ha'apai underwater volcano eruption on 15 January 2022

Supp_Mov.avi  shows the spatial distribution of the TEC perturbations in the study area (25°S–55°S, 70°E–160°W) from 04:00 UT to 22:00 UT on 15 January 2022 with a temporal interval of 1 minute. The blue dashed line shows that waves propagate with a speed of 335 m/s.  The black dashed line indicates that perturbations propagate with a speed of 305 m/s adding a 12-minute delay.