The Kilauea volcano erupted on May 3, and since then, it has caused more than 4,000 earthquakes and spewed enough lava to cover 10.2 square miles of land. On Friday, scientists with the U.S. Geological Survey saw another spectacular event — a whirlwind at the volcano's fissure 8, caused by hot gases punching through the cooler air above, creating a vertical column of hot air.