Yeah, well a six-pack of images that is!
Several of these fumaroles exist at the top of the volcano, spitting out smoke, steam, and sulphur which can be seen as a yellowish crust in the picture.
It was at this time that I heard a crackling hissing sound nearby, turned around, and saw that about 10 metres away the ground had opened up and there was now hot red lava following out of the newly formed crevice.