Mount Asama erupted in early February 2009, sending ash to a height of ,"Volcano erupts close to Tokyo," BBC. 2 February 2009. and throwing rocks up to 1 km (⅝ mi) from the crater. Ash fall was reported in Tokyo, southeast of the volcano crater. On 16 February there were 13 recorded volcanic earthquakes and an eruption emitting smoke and ash in a cloud high.
