Here’s a photo by Gonzaga Barreira that was published on the BBC site. It came with the following caption:
“Nakadake volcano in Japan erupted for the first time in 25 years, covering surrounding villages in volcanic ash. Gonzaga Barreira was in Mount Aso, Kumamoto Prefecture, when he took the picture. He said: ‘It’s the biggest volcano in Japan and has one of the biggest calderas in the world, with a few thousand people living inside the caldera.’”