![](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240603_goes18_shortwaveInfrared_Kilauea_anim.gif\")
<\/a>GOES-18 Shortwave Infrared (3.9 \u00b5m) images, from 1021-2001 UTC on 03 June [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>5-minute PACUS Sector GOES-18\u00a0(GOES-West)<\/em>\u00a0Shortwave Infrared (3.9 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> showed the thermal anomaly (heat signature) following the onset of an eruption of Kilauea on the Big Island of Hawai`i — which began around 1030 UTC on 03 June 2024. The peak 3.9 \u00b5m brightness temperature sensed at the eruption site was 134.2\u00baC at 1221 UTC, which was just a few degrees below the 137.88\u00baC saturation temperature of GOES-18 ABI<\/strong><\/a>\u00a0Band 7 detectors.<\/p>\n GOES-18 Nighttime Microphysics RGB<\/strong><\/a> + daytime True Color RGB images from the CSPP GeoSphere<\/strong><\/a>\u00a0site\u00a0(below)<\/strong><\/em> displayed a narrow volcanic plume as it moved southwest; prior to sunrise, the Kilauea eruption thermal anomaly appeared as purple to blue pixels in the Nighttime Microphysics RGB images. Such volcanic plumes from similar Kilauea eruptions often contain varying amounts of SO2<\/sub>.<\/p>\n GOES-18 Nighttime Microphysics RGB + daytime True Color RGB images [click to play MP4 animation]<\/p><\/div>GOES-18 SO2<\/sub> RGB<\/strong><\/a> images (below)<\/em><\/strong> did display a SO2<\/sub> signature (lighter shades of cyan), which more obvious immediately downwind of Kilauea but could also be seen streaming off the southwest coast of the Big Island.<\/p>\n<\/a>