Juan de Fuca Plate

Plate tectonics is a theory about how the plates are constantly moving on top of a layer of magma that is constantly taking in old crust to recycle it this constant movement causes earthquakes, tsunamis and other geological events. The movement of the Pacific and North American plates cause the old sea floor to be replaced by the now wider North American plate. Also with the movement the continental plate was stretched as the Pacific plate pulled the continental plate to the northwest which…

there are volcanos there are usually tectonic plates beneath them either pushing against or pulling away from one another. Take for instance the Cascade Mountain Range in Northern California and stretches through Oregon and into Vancouver, British Columbia and sits northeast of the San Andreas Fault line that runs 750 miles through California. This fault creates the tectonic boundary between the Northern America and Pacific Plates. The three types of plate boundaries are convergent, meaning…

The great Crater Lake in Oregon was once a stratovolcano named Mount Mazama. Mount Mazama had a very catastrophic pyroclastic eruption that produce about 12 cubic miles of magma. The Mount Mazama volcano has been recorded as one of the largest volcano eruption that has taken place in the last 10,000 years. The Mount Mazama volcano was one of the major volcanoes at the Cascade Range. The range of Mount Mazama’s summit was roughly between 11,000 and 12,000 prior to its climatic eruption. The…

on what plates it is located on, what landforms are around it, etc. Axial Seamount is an underwater volcano located in the Northeastern Pacific Ocean, about 483 kilometers (300 miles) off the coast of Oregon. Because its frequent volcanic activity, the first underwater volcano observatory is located near the volcano. (www.pmel.noaa.gov) According to www.en.wikipedia.org, the two plates that create the boundary are called the Juan de Fuca plate and the North American Plate. These two plates form…

Mt. St. Helens is a stratovolcano part of a group of volcanoes called The Ring of Fire. These are created from the convergence/subduction between the Juan De Fuca plate and the North American plates. Its most common type of eruption is intermediate eruptions, which is what the composition was in its most recent eruption. Mt. St. Helens most recently erupted on May 18, 1980. An earthquake right under the mountain caused an enormous landslide/avalanche going close to 150 mph. A huge hazard from…

Volcanoes are mountains that can erupt to spew molten rock everywhere. A volcano can be formed in different ways like hotspots or tectonic plates. The tectonic plates can form volcanoes by forming convergent or transform boundaries. A convergent boundary is when two tectonic plates collide into each other, forming mountains. The transform boundaries form mountains when they slide into one another. Hotspots are formed when the magma is forced up to the Earth's surface. Before Mount St. Helens…

Basin Geography The Klamath River Basin is located in the Eastern parts of Northern California and Southern Oregon. The upper portion of the basin lies partially in the arid Great Basin region of South Eastern Oregon and partly in the eastern Cascades. The Klamath Basin Wildlife Refuge complex and much of the farmlands are located in the Upper Basin. The climate in the Upper Klamath Basin varies with changes in elevation, but it is typically dry with precipitation falling in the winter season…

Mount St. Helens is a volcanic stratovolcano still actively located in the Cascade Range in Western North America in the state of Washington. It was formed by a subduction plate boundary also located on the Juan de Fuca plate. The Cascade range is one of the most famous mountain ranges, and has one of the most active volcanos located in Western North America. Other areas or famous landmarks surrounding Mount St. Helens are the South Fork Toutle River, North Fork Toutle River, Castel lake,…

natural disasters ignorance can be deadly. I would like to learn more about the volcanic risk associated with living in or close to the Cascade Mountain Range. The Cascade Mountain Range was created by the subduction of the Juan de Fuca plate underneath the North American plate thus they are lined with Composite volcanoes which have the potential to create explosive eruptions. We mainly only hear about Mt. St. Helens and Mt. Rainer when we discuss dangerous volcanoes, but I would like to know if…

Introduction Canada is a northern country that has many livable cities. One of these cities is Vancouver which is located in British Columbia [49.2505° N, 123.1119° W] (“Vancouver Map” par.1). It is a beautiful water-level city in the lower mainland region. Vancouver has a powerful economy, it is one of the main industrial centres of Canada (“Vancouver Map” par. 2). Vancouver is an environmentally friendly city and has a diverse population. This report addresses the environmental, economic and…