Mapping magma chambers under the Hunga volcano before and after the 2022 eruption
Pre-, post-, and coeruptive datasets. (A and B) Marine gravity anomaly derived from satellite altimetry [V31.1 and V32.1, respectively]. Subaerial island outlines in gray. (C) Change in marine gravity anomaly between (A) and (B). (D and E) Vertical gravity gradient (VGG) data from satellite altimetry [V31.1 and V.32, respectively]. (F) Change in VGG between (D) and (E). (G) Preeruptive bathymetry, (H) Posteruptive bathymetry (see Materials and Methods), and (I) change in bathymetry between (G) and (H) attributed to the…
