A small explosive eruption of Mount St. Helens on October 1st: the first in more than a decade—followed a week of increasing earthquake activity beneath the volcano and deformation of the lava dome. This eruption sent a steam and minor ash plume to an altitude of about 10,000 feet above sea level. (source)
We want more! We want more! (By the way, great view on Mount St. Helens with the VolcanoCam, though it might be experiencing server problems every now and again.)