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Mount Hood, also known as Wy'east, is an active stratovolcano in the Cascade Range and is a member of the Cascade Volcanic Arc.It was formed by a subduction zone on the Pacific Coast and rests in the Pacific Northwest region of the United States.
The volcano has a pinnacle appearance resembling the spire-like shape of Mount Thielsen. [14] According to Harris (2005), the volcano resembles Cleopatra's Needle from certain angles and the Sugarloaf Mountain in Brazil from others. [5] The proximal relief for the volcano is 2,707 feet (825 m), while the draping relief is 3,363 feet (1,025 m).
Recent argon–argon dating suggests that eruptive activity at the Boring Lava Field began between 2.6 and 2.4 million years ago, yielding far-reaching basalt lava flows, the Highland Butte shield volcano, a number of monogenetic vents, and one andesitic lava flow. These took place near the southern Portland Basin, and were followed by about ...
The Sand Mountain Volcanic Field (also known as the Sand Mountain Field) is a volcanic field in the upper McKenzie River watershed, located in the United States in Oregon. Part of the Cascade Volcanic Arc , it lies southwest of Mount Jefferson and northwest of Belknap Crater and Mount Washington .
The recent eruptive activity at Belknap Crater means that it is one of the youngest mafic volcanoes in the Oregon Cascades. [ 55 ] There are about 6,500 people living within 19 miles (30 km) of Belknap Crater, with a population of about 362,000 within 62 miles (100 km). [ 3 ]
He was one of 107 soldiers from Oregon buried in the Netherlands American Cemetery near the village of Margraten. [9] The Cinder Pit volcano 1.5 miles (2.4 km) north of Blue Lake Crater was historically excavated for road metal. [25] There was a drilling site near Santiam Pass about 6.2 miles (10 km) to the west of Blue Lake Crater. [33]
Earthquakes unrelated to volcanic activity also take place in Oregon, though they are usually less than 2.5 on the Richter magnitude scale. Volcanoes can also cause earthquakes reaching magnitudes up to 5 on the Richter scale, which sometimes occur as swarms. These clusters of tremors cause shaking of houses, walls, and windows and can crack ...
Axial Seamount is the youngest volcano and current eruptive center of the Cobb–Eickelberg Seamount chain, a chain of seamounts that terminates south of Alaska. [5] Axial lies where the chain intersects with the Juan de Fuca Ridge , [ 6 ] approximately 480 km (298 mi) west of Oregon.