Karangetang with numerous rock avalanches

The dome in the southern crater of the Indonesian volcano Karangetang continues to grow, and numerous rock avalanches are occurring, leaving glowing traces in nighttime images. There are also signs of a sluggish lava flow making its way down the southern flank. On long-exposure photos, the glowing traces of the rock avalanches are not always distinguishable from lava flows. A daytime image shows bluish gas emissions emanating from the flank, indicating a lava flow. A satellite photo from August 1st reveals two thermal anomalies in the infrared range, possibly originating from lava flows. The distinction between rock avalanches and lava flows is uncertain here as well.