Aside from regular eruptions, there are fumarolic-seismic events such as in 1995-1996 when sulfur dioxide and water vapour, emitted at temperatures of up to , formed clouds that rose over above the crater. Ubinas persistently emanates smoke, and lahars which have damaged fields, irrigation canals and paths have been recorded, such as the 2016 lahars caused by early 2016 precipitation events which mobilized ash that had fallen over the previous years. These lahars destroyed local water supplies and left the Matalaque and Ubinas districts temporarily isolated.