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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 ]
A volcano observatory is an institution that conducts research and monitoring of a volcano. Each observatory provides continuous and periodic monitoring of the seismicity , other geophysical changes, ground movements, volcanic gas chemistry, and hydrologic conditions and activity between and during eruptions .
Dee Wright Observatory is an observation structure at the summit of McKenzie Pass in the Cascade Mountains of Oregon. The structure is an open shelter constructed with lava stone. It is located in the midst of a large lava flow, and offers an exceptional view of numerous Cascade peaks.
USGS Cascades Volcano Observatory geophysicist Rebecca Kramer works on station PR05, part of the Mount Rainier lahar detection network. The system has been upgraded and expanded since it was first ...
This is a list of Cascade volcanoes, i.e. volcanoes formed as a result of subduction along the Cascadia subduction zone in the Pacific Northwest of North America. The volcanoes are listed from north to south, by province or state: British Columbia , Washington , Oregon , and California .
The Cascade Volcanoes ... Lassen Volcanic Center Rockland Tephra 610,000 7 130 326.7 [10] [11] Mount Baker Volcanic Field Lake Tapps Tephra 1,149,000 7
The mysterious drones spotted for weeks in the night skies above New Jersey have captured the nation’s attention, sparking wide-ranging theories about the origin and purpose of the flying objects.
On a clear day, visibility from the summit exceeds 100 miles (160 km), and one can, in a single view, take in the entire caldera. Also visible from this point are the white-peaked Cascade Range volcanoes to the north, the Columbia River Plateau to the east, and the Western Cascades and the more-distant Klamath Mountains to the west.