Major fault line off West Coast could trigger catastrophic 9-magnitude earthquake, study finds - and it's due to blow
9 months, 2 weeks ago

Major fault line off West Coast could trigger catastrophic 9-magnitude earthquake, study finds - and it's due to blow

Daily Mail  

An underwater fault line along the US West Coast could trigger a megaquake that would be more devastating than California's 'Big One,' a new study suggests. Using underwater mapping techniques, scientists have mapped the Cascadia Subduction Zone - a 600-mile fault line extending from southern Canada to northern California - in never before seen detail. If an earthquake of over 9 magnitude struck the West Coast US it could generate tsunamis reaching 100 feet high or more, kill more than 10,000 people and cause over $80 billion in damages in just Oregon and Washington alone. Cascadia's four segments make it more dangerous than other major fault lines because they have different rock and sediment, with the most concerning section extending along northern Oregon, into Washington and southern British Columbia.

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History of this topic

Experts warn a mega quake will trigger a devastating 100ft-high tsunami, cause carnage for seven million people and destroy 140,000 square miles. Here they share the key actions needed to improve your
3 months, 3 weeks ago

Experts warn a mega quake will trigger a devastating 100ft-high tsunami, cause carnage for seven million people and destroy 140,000 square miles. Here they share the key actions needed to improve your

Daily Mail  

Not far off the coast of the Pacific Northwest, a crack exists in the Earth’s crust. For this is the ‘Big One’ – the long-anticipated earthquake that could one day bring devastation to the continent. At a magnitude 9, it’s been predicted the eruption of the Cascadia Subduction Zone – a so-called megaquake – could kill 14,000 people and severely …

A string of earthquakes has been detected off the coast of Oregon
6 years, 8 months ago

A string of earthquakes has been detected off the coast of Oregon

Daily Mail  

A series of earthquakes have shaken a region of ocean off the west coast of the US. This geological activity has caused the Cascadia Subduction Zone 'megathrust' fault, which is a 650 mile long line that stretches from Northern Vancouver Island to Cape Mendocino California. Running from Northern California to British Columbia, the Cascadia subduction zone can deliver a quake …

California earthquake latest: 6.5 magnitude tremor recorded off West Coast
8 years, 3 months ago

California earthquake latest: 6.5 magnitude tremor recorded off West Coast

The Independent  

The latest headlines from our reporters across the US sent straight to your inbox each weekday Your briefing on the latest headlines from across the US Your briefing on the latest headlines from across the US SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy A 6.5 magnitude earthquake …

4 Northern California faults primed for big quakes
10 years, 5 months ago

4 Northern California faults primed for big quakes

India TV News  

San Francisco: Three fault segments running beneath Northern California and its roughly 15 million people are overdue for a major earthquake, including one section that lies near the dams and canals that supply much of the state's water, according to a geological study published on Monday. Underestimated by geologists until now, the fault running between the cities of Napa and …

Tsunami’s effects in California offer clues about future, more powerful seismic events
14 years ago

Tsunami’s effects in California offer clues about future, more powerful seismic events

LA Times  

Although the effect of the tsunami was minuscule in California compared with Japan, the scattered damage is providing a rare opportunity to study how the waves work and to help officials better prepare for what could be a far more destructive seismic event along the state’s coast. But officials estimate a Southern California tsunami could cost billions of dollars, inundate …

Pacific Northwest Earthquakes Could Strike Closer to Home
15 years, 4 months ago

Pacific Northwest Earthquakes Could Strike Closer to Home

Wired  

Major earthquakes occurring along the Cascadia subduction zone off the coast of Washington state could strike closer to the state’s urban areas than some models have suggested, a new study notes. GPS data gathered at dozens of sites throughout western Washington hint that slippage along the interface between the North American and Juan de Fuca tectonic plates could occur as …

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