further eruptions occurred in 1877, 1914-1915, 1921, 1922-1925, 1938, 1940, 1949, 1950-1954, 1957-1999, 2001-2002 and 2004-present. one of the most active volcanic islands in the world, suwanosejima recorded 156 volcanic eruptions in 2008 and 216 in 2009.