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USGS Cascades Volcano scientists listen to and watch volcanoes using a variety of equipment. Seismometers detect earthquakes, GPS receivers detect ground motion, "sniffers" detect volcanic gas, and staff innovate new equipment to solve unique activity detection needs.
Mount Hood is one of the most seismically active volcanoes in the Washington and Oregon Cascades, and the most seismically active volcano in Oregon. In an average month 1-2 earthquakes are located within 5 km (3 miles) of the summit.
Cascade volcanoes present unique challenges for volcano monitoring. The events surrounding the May 18, 1980 eruption of Mount St. Helens helped scientists to recognize some new and subtle patterns of volcanic activity that could help them forecast Cascade volcanoes' eruptions.
CASCADES VOLCANO OBSERVATORY WEEKLY UPDATE. U.S. Geological Survey. Friday, November 1, 2024, 11:13 AM PDT (Friday, November 1, 2024, 18:13 UTC) CASCADE RANGE (VNUM #) Current Volcano Alert Level: NORMAL.
The David A. Johnston Cascades Volcano Observatory (CVO) is a volcano observatory in the US that monitors volcanoes in the northern Cascade Range. It was established in the summer of 1980, after the eruption of Mount St. Helens. [2]
October 18, 1805: Lewis and Clark have their first sighting of a Cascade Range volcano. They see Mount Hood, Oregon, from a location near the Walla Walla River.
Mount Rainier National Park aids with logistical support as the USGS Cascades Volcano Observatory (CVO) conducts monitoring of seismic activity (with the Pacific Northwest Seismic Network), ground deformation, hydrothermal activity, and more to track Mount Rainier’s volcanic activity.
Scientists at the U.S. Geological Survey's Cascades Volcano Observatory (CVO) study and observe Mount St. Helens and other volcanoes of the Cascade Range in Washington, Oregon, and northern California that hold potential for future eruptions.
Scientists are seeing new signs that magma is moving deep within the Three Sisters volcanic complex in Oregon’s Cascade Range, but there are no signs of imminent eruption.
U.S. Geological Survey. David A. Johnston Cascades Volcano Observatory. 1300 SE Cardinal Court, Building 10, Suite 100. Vancouver, Washington, 98683-9589. phone: (360) 993-8900. fax: (360) 993-8980. Media & Press Inquiries, Public Information.