Arenal, Costa Rica

In March, activity originating from Arenal’s Crater C consisted of gas emissions, sporadic Strombolian eruptions, and occasional avalanches from lava-flow fronts that traveled down the SW flanks. Volcanic activity was at relatively low levels and few eruptions occurred. Acid rain and small amounts of ejected pyroclastic material affected the NE and SE flanks. Eruptions produced [...]

Arenal, Costa Rica

In January, activity originating from Arenal’s Crater C consisted of gas emissions, sporadic Strombolian eruptions, and occasional avalanches from lava-flow fronts that traveled down the S flanks. Blocks from the lava-flow fronts periodically reached vegetation and started small fires. Volcanic activity was at relatively low levels and few eruptions occurred. Acid rain and small amounts [...]

Arenal, Costa Rica

In November, activity originating from Arenal’s Crater C consisted of gas emissions, sporadic Strombolian eruptions, lava flows traveling down the S flank, and occasional avalanches from lava-flow fronts. Blocks from near the edge of the crater rolled down the SE and SW flanks. Volcanic activity was at relatively low levels and few eruptions occurred. Acid [...]