Eruption of Kilauea
![](https://cimss.ssec.wisc.edu/satellite-blog/images/2023/06/hi_so2-20230607_170117.png)
GOES-18 SO2 RGB, Shortwave Infrared (3.9 µm) and Fire Power derived product images [click to play animated GIF | MP4]
The thermal signature was also evident in Nighttime Microphysics RGB imagery from the CSPP GeoSphere site — and after sunrise the hazy SO2-rich volcanic plume could be seen in True Color RGB images, drifting southwestward away from Kilauea and the Big Island of Hawai`i.
GOES-18 Ash RGB images created using Geo2Grid (below) showed the SO2-rich volcanic cloud (shades of cyan) as it drifted southwest. According to the Hawaiian Volcano Observatory, a sulfur dioxide (SO2) emission rate of approximately 65,000 tonnes per day was measured between approximately 8 and 9 a.m. local time (1800-1900 UTC).![](https://cimss.ssec.wisc.edu/satellite-blog/images/2023/06/GOES-18_ABI_RadC_ash_2023158_183117Z.png)
GOES-18 Ash RGB images [click to play animated GIF | MP4]