All volcanoes in the Cascade Range of Washington and Oregon are at normal background levels of activity this week. Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN Weekly Update: https://on.doi.gov/2hwAiRm The spectacular eruption of Mount St. Helens on May 18, 1980, electrified scientists and the public. The colossal landslide, northward-directed blast, and eruption column made news worldwide. Reconnaissance of the devastation spurred efforts to understand the power and aw

This week, all volcanoes in the Cascade Range of Washington and Oregon are at normal background levels of activity. Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN Weekly Update: https://ow.ly/4v2i50WKzEk Past Week Observations: Small earthquakes were detected at Mount Rainier and Mount St. Helens. Seismicity at Mount Rainier has largely returned to background levels after a swarm of small earthquakes that began on July 8. Coming in for a landing! Taking advantage of the g