The second phase resulted in an estimated (0.25 km 3) of ejected tephra and an ash plume that rose to a height of approximately, which rates the explosive power of the eruption as a 4 on the Volcanic Explosivity Index.
The second phase of the eruption started on 14 April 2010 and resulted in an estimated (0.25 km 3) of ejected tephra. The ash plume rose to a height of approximately, which rates the explosive power of the eruption as a 4 on the Volcanic Explosivity Index.