This is so COOL!
It's a loop of images from the new Himawarai-8 satellite, showing the the eruption of the Manam volcano in Papua New Guinea - last Friday, created by Dan Lindsay of NOAA.
The eruption height was > 20 km (stratospheric). Manam is near the Japan-Australia routes. It erupts relatively frequently and generally without much warning - the volcanologists don't understand the subterranean structure very well, and it's a difficult island to monitor.
Manam ash is actually hard to see using normal remote sensing techniques, because it tends to be locked in ice-ash aggregates, so often we've had to infer it using other techniques such as SO2 detection. True colour images, formerly only available on polar orbiters such as Aqua/Terra/MODIS.