Fig. 1: A map showing the location of two possible source volcanoes of Kuwae (red triangle) in Vanuatu, in the tropical Pacific, and Reclus (green triangle), located in the Southern Patagonian Ice Field, Chile (see text).

Also shown are the locations of the VK22 (Vostok; black circle), SPC14 (South Pole; blue circle), and WDC06A (WAIS Divide; purple circle) ice core sites mentioned in the text. Basemap from Google Earth Pro (version 7.3.6). Map data: © 2024 Google; Data SIO, NOAA, U.S. Navy, NGA, GEBCO; imagery: Landsat/Copernicus, US Geological Survey, PGC/NASA. Modified and annotated by the authors.