The pictures are impressive, of ash columns rocketing into the sky, surrounded by lightning strikes.  Believe or not it’s considered a moderate eruption.  It’s enough to spread enough ash to shut down airports in Argentina and Chile.

The Puyehue-Cordon Caulle volcano complex erupted on Saturday, June 4, causing thousands of people to evacuate.  Chile is home to hundreds of active volcanoes that periodically make themselves known, and most people know when it’s time to leave.

Vulcanologist say eruptions could continue for several weeks.