The Sakurajima Volcano in Japan had a very powerful eruption on July 24th that sent 18-inch rocks flying more than a mile away. The volcano erupts on a daily basis but this eruption occurred at the less frequently active Minami-dake crater. The residents of nearby Kagoshima City were showered with ash but most quickly swept away the debris.
Nina Sen is a frequent contributor to Live Science’s Life’s Little Mysteries series: an exploration and explanation of our world’s phenomena, both natural and man-made. She also writes astronomy photo stories for Live Science's sister site Space.com.