The volcano Sakura-Jima on the Japanese Island Kyushu emitted a dense ash cloud. Currently, it is the most active volcano in Japan, erupting several hundred times per year. Normally, these eruptions are fairly small, but sometimes a great eruption can form an ash cloud of 3.8 km in height.
This volcanoe, called "cherry blossom island" in Japanese and more than 1 km high, is in the very south of the Japanese main islands in the prefecture Kagoshima. There are many other volcanoes close-by, nevertheless, there are some cities with several hundret thousand inhabitants, i.e. Kagoshima directly opposite to Sakura-Jima.
Picture taken on November 11, 2013
Sensor: Landsat 8 - OLI