A Cascade Range volcano is one that is part of a series of mountains in western North America that includes an arc of volcanoes. The Cascade Range extends from British Columbia through Washington and Oregon to northern California.Know More
According to the United States Geological Survey, the Cascade Range volcanoes include the following:
Washington: Mount Adams, Mount Baker, Glacier Peak, Mount Rainier, and Mount St. Helens
Oregon: Mount Bailey, Belknap Shield Volcano, Crater Lake (Mount Mazama), Mount Hood, Mount Jefferson, Mount McLoughlin, Newberry Caldera, Mount Thielsen, Three Sisters; and California: Lassen Peak, Mount Shasta.
Mount Mazuma is the name given to the volcano that erupted about 8,000 years ago and subsequently collapsed to form Crater Lake.
A well-known Cascade Range volcano, Mount St. Helens famously erupted in May 1980 after an earthquake measuring 5.1 on the Richter scale shook its foundation. The earthquake triggered a collapse of the volcano's north face, and the subsequent avalanche of stone triggered the pressurized gases within the volcano to explode and send the falling debris into a wind that leveled 150 square miles of surrounding forest. The eruption lasted nine hours, although the initial explosions altered the volcano itself and the surrounding landscape instantaneously. The volcano continued to erupt periodically until 1986.Learn more about Volcanoes
When a volcano erupts, magma from beneath the Earth is forced out of the volcano's mouth in the form of molten lava. Large amounts of gases and ash can also be released with the lava, depending on the type of eruption.Full Answer >
The world's smallest volcano is the inactive Cuexcomate in Puebla, Mexico. Cuexcomate stands 43 feet tall, with a diameter of 76 feet. It was formed in 1064 as a result of an explosion of the nearby Popocatepetl.Full Answer >
A dome volcano, or a lava dome, occurs when a dome forms over the vent of a volcano because the eruption is too slow. Once the lava cools down, it forms a dome. The domes are typically fairly steep and filled with silica-rich lava, which is prone to explosions.Full Answer >
A quiet volcano is considered dormant. Dormant volcanoes are volcanoes that have not actively erupted in the past 10,000 years, but still have the potential to erupt at some point.Full Answer >