In July of 1968, an explosive eruption on Arenal produced hot avalanches and ejected blocks that devastated the west flank of the volcano and killed 78 people. Arenal has been continuously active since 1968. For what's erupting now click here . November 1996 activity at Rincon de la Vieja Rincon de la Vieja began erupting volcanic ash and water vapor on November 6, 1995. Local authorities have evacuated 300 families.
Scientists are on their way to the remote volcano.
Great amounts of ash have been reported in local rivers. Heavy cloud formations have prevented satellite observations. The main cone is heavily vegetated with the exception of three craters to the west. A lake covered the crater floor. The most recent confirmed eruption of Rincon de la Vieja was in early 1992.