Zone de subduction de cascadia

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New research published in the journal 'Science Advances', has focused their study off the west coast of North America giving seismologists a better understanding of what one scientist describes as "the single greatest geophysical hazard to the continental United States".   #cascadia mantle plumes #cascadia subduction zone #Juan de Fuca plate #molten rocks #new research shows quake causing cracks on pacific sea floor #northern america #sea floor #tectonic plates

New research published in the journal 'Science Advances', has focused their study off the west coast of North America giving seismologists a better understanding of what one scientist describes as "the single greatest geophysical hazard to the continental United States". #cascadia mantle plumes #cascadia subduction zone #Juan de Fuca plate #molten rocks #new research shows quake causing cracks on pacific sea floor #northern america #sea floor #tectonic plates

‘If the internet goes down, half the planet will come to a standstill’ –…

‘If the internet goes down, half the planet will come to a standstill’ – preppers will be last ones standing

Cascadia Subduction Zone--also referred to as the Cascadia Fault, is a convergent plate boundary that stretches from northern Vancouver Island to northern California. It is a very long, sloping subduction zone that separates the Explorer, Juan de Fuca, and Gorda plates, on the one hand, and the North American Plate, on the other.

Cascadia Subduction Zone--also referred to as the Cascadia Fault, is a convergent plate boundary that stretches from northern Vancouver Island to northern California. It is a very long, sloping subduction zone that separates the Explorer, Juan de Fuca, and Gorda plates, on the one hand, and the North American Plate, on the other.

If a megaquake like the one that hit Japan last March were to strike the U.S., the Pacific Northwest coast would be the likeliest spot. Geologists have their eyes on the Cascadia subduction zone, a 740-mile seam where the Juan de Fuca and North American plates meet. The CSZ has been building up tension for more than 300 years, say some seismologists. If that tension releases, here’s how the earthquake and resulting tsunami would shake out.

The Big-Shake, Big-Wave Theory

If a megaquake like the one that hit Japan last March were to strike the U.S., the Pacific Northwest coast would be the likeliest spot. Geologists have their eyes on the Cascadia subduction zone, a 740-mile seam where the Juan de Fuca and North American plates meet. The CSZ has been building up tension for more than 300 years, say some seismologists. If that tension releases, here’s how the earthquake and resulting tsunami would shake out.

On average, a magnitude 9.0 earthquake has occurred every 500 years. But averages can be deceiving.

What are the odds a giant earthquake will devastate Seattle? Experts weigh in.

On average, a magnitude 9.0 earthquake has occurred every 500 years. But averages can be deceiving.

The subduction zone is the place where two lithospheric plates come together, one riding over the other. Most volcanoes on land occur parallel to and inland from the boundary between the two plates.

The subduction zone is the place where two lithospheric plates come together, one riding over the other. Most volcanoes on land occur parallel to and inland from the boundary between the two plates.

Here is the Cascadia Subduction Zone in the American North West: The zone runs from Vancouver Island to Northern California. A small tectonic plate, called the Juan de Fuca plate is being shoved beneath the North American plate. Extremely large earthquakes and volcanos are common near these zones. The Cascadia zone is thought to be capable of causing earthquakes above 9 on the Richter Scale and extremely large tsunamis. The last known Cascadia quake was in 1700. There appear to have been…

Here is the Cascadia Subduction Zone in the American North West: The zone runs from Vancouver Island to Northern California. A small tectonic plate, called the Juan de Fuca plate is being shoved beneath the North American plate. Extremely large earthquakes and volcanos are common near these zones. The Cascadia zone is thought to be capable of causing earthquakes above 9 on the Richter Scale and extremely large tsunamis. The last known Cascadia quake was in 1700. There appear to have been…

http://endoftheamericandream.com/archives/coming-soon-this-is-what-would-happen-if-a-9-0-earthquake-hit-the-cascadia-subduction-zone  If you live in the Pacific Northwest, you have probably already heard of the Cascadia Subduction Zone.  It is where the Juan de Fuca plate meets the North American plate, and it stretches approximately 700 miles from northern Vancouver Island all the way down to northern California.  This subduction zone is capable of producing far more powerful earthq..

http://endoftheamericandream.com/archives/coming-soon-this-is-what-would-happen-if-a-9-0-earthquake-hit-the-cascadia-subduction-zone If you live in the Pacific Northwest, you have probably already heard of the Cascadia Subduction Zone. It is where the Juan de Fuca plate meets the North American plate, and it stretches approximately 700 miles from northern Vancouver Island all the way down to northern California. This subduction zone is capable of producing far more powerful earthq..

Remember that New Yorker story about a potential earthquake on the Cascadia Subduction Zone that scared the shit out of us? Well, Motherboard just published a series of heavily reported sci-fi stories about what might actually happen to Portland during such a disaster. And they’re way, way scarier.

This Account of an Imaginary 9.0 Earthquake in Portland Is Beyond Terrifying

Remember that New Yorker story about a potential earthquake on the Cascadia Subduction Zone that scared the shit out of us? Well, Motherboard just published a series of heavily reported sci-fi stories about what might actually happen to Portland during such a disaster. And they’re way, way scarier.

The Juan de Fuca and Gorda crustal plates, among the world's smallest. The Cascadia Subduction Zone is the black line with the converging arrows. Many of the most important Cascade volcanoes are shown as red triangles.Source: NASA -- http://geotripper.blogspot.com/2015/07/vagabonding-on-dangerous-ground.html

The Juan de Fuca and Gorda crustal plates, among the world's smallest. The Cascadia Subduction Zone is the black line with the converging arrows. Many of the most important Cascade volcanoes are shown as red triangles.Source: NASA -- http://geotripper.blogspot.com/2015/07/vagabonding-on-dangerous-ground.html

American Cities Vulnerable? Tsunamis Have California/Oregon Unprepared For A Cascadia Subduction Zone Mega Earthquake

American Cities Vulnerable? Tsunamis Have California/Oregon Unprepared For A Cascadia Subduction Zone Mega Earthquake

The beautiful landscapes of western Oregon and Washington—and the geological hazards we live with—are products of the Cascadia Subduction Zone. Sedimentary layers and basalt from the ocean floor are scraped off and uplifted as the Juan de Fuca Plate dives beneath the edge of the continent, forming the Coast Range. Farther inland the top of the descending plate becomes so hot that it dehydrates; the rising water melts rock that rises as magma to form the Cascade volcanoes. Puget Sound in…

The beautiful landscapes of western Oregon and Washington—and the geological hazards we live with—are products of the Cascadia Subduction Zone. Sedimentary layers and basalt from the ocean floor are scraped off and uplifted as the Juan de Fuca Plate dives beneath the edge of the continent, forming the Coast Range. Farther inland the top of the descending plate becomes so hot that it dehydrates; the rising water melts rock that rises as magma to form the Cascade volcanoes. Puget Sound in…

Intriguing Seismic Activity Along the Cascadia Subduction Zone:  go to youtube, BP Earthwatch video, BREAKING: 4ft. Drop off coast on 1/19/2016

Intriguing Seismic Activity Along the Cascadia Subduction Zone: go to youtube, BP Earthwatch video, BREAKING: 4ft. Drop off coast on 1/19/2016

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