The Anak Krakatau volcano in Indonesia is shooting boulders out of its crater like fireworks.
The "lava bombs" (yep, that's a real thing) hurled into the sky at the weekend were as big as trucks, according to James Reynolds, a natural disaster chaser who shot a video of the eruption.
Anak is only a century old - not even a blip on Earth's geological timeline - but it's already become one of the most-watched volcanoes in the world. That probably has to do with its lineage; Anak Krakatau is, geophysically speaking, Krakatoa's volcanic child.
Krakatoa lives in infamy for its 1883 eruption. Between the pyroclastic flow, earthquakes, ash fall and tsunamis, the volcano killed tens of thousands of people that year. The sound of the eruption was heard in Australia.