Later three lava domes were emplaced and three explosive eruptions took place, accompanied by the emission of volcanic ash, blocks, lava bombs and pumice. The first eruption with a tephra volume of about happened at 10,600 ± 80 years before present, the second in the middle Holocene and the last sub-Plinian to phreatomagmatic eruption (Brown Ticsani) took place shortly before the Huaynaputina eruption of 1600, generating about of tephra. This volcano stage also produced lava flows which filled valleys, formed a lava flow field northwest of the volcano and pyroclastic flows on the eastern side of the volcano.