geologist John S. Pallister spotted steam seeping from the lava dome in Mount St. Helens' crater. At approximately the same time, the Pacific Northwest Seismograph Network recorded a magnitude 2.9 earthquake, followed by a small tremor that lasted for nearly ninety minutes, and a magnitude 2.7 earthquake. But by the end of January, the lava dome growth had stopped. On July 10, 2008, it was determined that the eruption that began in 2004 had ended, after 5 months of inactivity. References External links Mount St. Helens National Volcanic Monument website from the U.S. Forest Service Mount St. Helens National Volcanic Monument's VolcanoCam Mount St. Helens photographs and current conditions from the United States Geological Survey website Time-lapse images of Mount St. Helens dome growth 2004-2008 - by USGS Mount St. Helens 2004 Mount St. Helens Mount St. Helens Mount St. Helens Mount St. Helens Mount St. Helens Mount St. Helens 2004 Mount St. Helens 2004 Cascade Volcanoes Volcanism of Washington (state) Mount St. Helens St. Helens Gifford Pinchot National Forest Mount St. Helens Mount St. Helens Mount St. Helens Mount St. Helens Mount St. Helens St. Helens Volcanic eruptions in the United States