Mount Agung on the island of Bali, Indonesia, is supposedly producing huge pulses of light, such huge pulses that satellites are picking them up from space. The same satellites cannot see lightning, so there might be something big going on, (that is, if Haarp tech is not what is producing the light, and it really is due to large geologic electrical discharges).
My guess is someone is playing with a volcano, and a satellite caught it. But if that is not the case, the current eruption at the volcano is probably a precursor to a really big blast.
There have been, in recent times, massive volcanic eruptions that make Mount St Helens look like nothing. The Krakatoa blast of 1883 was one such eruption, which created a volcanic winter and was heard 3,100 miles away, having a sound level of 310 DB at the blast site, being 180 decibels 100 miles away from the blast site. The proximity of Mount Agung to Krakatoa may be a cause for concern if Mount Agung really is producing the light flashes on it’s own, without assistance. See map: