The fault running for more than 600 miles off the coast of Washington, Oregon, Northern California and Vancouver Island, Canada is more complex than first thought, according to new research from the University of Oregon.“Our study doesn’t address the when question, but does address where it might start occurring,” said Doug Toomey, professor of Earth Sciences. California's earthquakes serve as a reminder that there’s still a lot we don’t know about the faults under Seattle. Updated 4:03 pm PST, Monday, February 25, 2019 Shortly before noon on Wednesday, April 13, 1949, an earthquake rocked the area from British Columbia to Oregon and caused extensive damage. Along the Washington state coast, the spike comes roughly every 14 months. “But it increases from one very small number to what’s still a very small number.”Trehu said the key thing to watch for is a quickening in the pattern of episodic tremors.“Potentially changes in the pattern, changes in that periodicity, could be indicative of something interesting,” she said. It is the fourth strong earthquake in the region in two months. In 2015, worries about the potential effects of a big Cascadia quake led to an The seismic detection network in the Pacific Northwest and California allows seismologists to map the pulls exerted by the episodic  in three dimensions, day by day.“When there’s a little pull, it increases the risk, the stress increases, and the probability for a great earthquake increases,” Trehu said.

The latest earthquakes recorded around Seattle Earthquake Tracker. Updated: July 12, 2019 - 1:20 PM . magnitude 0.9. 1 km NE of Elbe, WA Depth: 12.16 km. Seattle and the Northwest have had several large earthquakes. Examples include theSubscribe to GeekWire's Space & Science weekly newsletterHave a scoop that you'd like GeekWire to cover? A 6.8 magnitude earthquake occurred in Mindanao, Philippines on 15 December 2019 at 6:11 UTC. 4.6-magnitude earthquake shook Seattle and the Pacific Northwest early Friday. And whether it’s a decade of terror or one segment that goes, we don’t know the answer to that yet.”Toomey advocates for a permanent network of seismometers on the continental shelf to watch under the ocean, as seismometers and GPS stations do on land, the movement of the various plates.He said a more complete picture of plate movement could give scientists a much better idea of just when a quake becomes more likely, and contribute to the new ShakeAlert earthquake early warning system; which could provide minutes of notification to inland areas when a quake starts and how quickly the shaking will arrive.Notifications can be turned off anytime in the browser settings.New research from the University of Oregon provides a clearer picture of where the "Big One" could strike along the Cascadia Subduction Zone. Magnitude-4.6 Earthquake Rattles Seattle Area Awake. San Jose Earthquakes vs Seattle Sounders FC predictions and betting tips MLS 29/09/2019. magnitude 0.7. “And what our research shows is why there are three segments there. Magnitude 4.6 quake rattles greater Seattle area; no link to California Posted 3:15 AM, July 12, 2019, by Associated Press , Updated at 04:49PM, July 12, 2019 Facebook

4.6-magnitude earthquake shook Seattle and the Pacific Northwest early Friday. Subduction systems – where one tectonic plate slides over another – are capable of producing the world’s largest known earthquakes.

Earthquake experts lay out latest outlook for the ‘Really Big One’ that’ll hit Seattle Watch tsunami waves from a 9.0 earthquake hit the Pacific Northwest in new simulation videos "And it’s most likely to occur where the fault is more strongly locked.”Toomey, Ph.D. student Miles Bodmer, and a University of Oregon team set out seismometers, many of them on the continental shelf underwater, to try and image what the Cascadia Subduction Zone looks like deep inside the earth. © 2020 KING-TV.

Japan has such systems. Either way, instruments that monitor a 14-month pattern in seismic activity could serve as an super-early warning system for the “Really Big One,” the massive earthquake that’s expected to hit the Pacific Northwest sometime in the next few centuries.Such events are linked to the titanic clash between the Juan de Fuca tectonic plate and the North American plate, in a region known as the Cascadia subduction zone. It is now over, although analysis of the data continues. It’s not the same everywhere, it’s in three distinct segments.“It’s important for your viewers to realize that this is not news that says it’s worse than we thought it was, but it’s simply to understand how it’s split up into three segments and why some segments are more locked than others,” said Toomey.That may indicate where the rupture might be more likely to begin, at the northern end along Washington’s coast, or the southern end between Cape Mendocino, California where the fault begins and off southwestern Oregon, areas where the research has found more locking between the plates.One question raised by the research -- would the entire length of the fault unzip in one giant earthquake, or would different segments rupture independently, years apart…a theory called a “decade of terror?”“We don’t know if it goes in one, two or three segments,” said Toomey.

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