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Mt Hood Volcano - John Seach
Oregon, USA
45.37 N, 121.69 W,
summit elevation 3426 m
stratovolcano
Mt Hood is Oregon's highest peak. It is located 75 km ESE of Portland. The volcano poses a direct hazard to communities downstream due to the risk of pyroclastic flows and lahars during times of eruption. The summit area is composed of andesite and dacite domes. Sulfatara activity has weakened the rocks and made them susceptible to slope failure.
Earthquake swarms occurred in January 1999. In September and Octover 2000 there were landslides and debris flown down the volcano. A series of earthquakes hit Mt Hood volcano on 28th June 2002.
Mt Hood Volcano Eruptions
1907?, 1869?, 1865-66, 1859, 1854?, 1853?