Finance

Newly identified fault could set off 7.4 natural disaster in Southern California

Newly identified fault could set off 7.4 natural disaster in Southern California”

The study led by the Scripps Institution of Oceanography at the University of California focused on the Rose Canyon and Newport-Inglewood faults.

A powerful fault system that runs from San Diego to Los Angeles could produce a magnitude 7.3 to 7.4 natural disaster if the segments rupture, according to an analysis led by researchers at Scripps Institution of Oceanography at the University of California San Diego (UCSD).

The team identified four segments of the fault that are horizontally offset in a pattern known as stepovers.

That puts the Newport-Inglewood/Rose Canyon fault more on par with the famous San Andreas fault in terms of predicted quake strength.

More news: Mavs Legend Dirk Nowitzki Reaches 30000 Career Points

By looking through data from previous and new seismic surveys, including bathymetric data gathered offshore, the researchers estimated that the fault could cause up to a magnitude-7.3 quake if the offshore segments rupture and a magnitude-7.4 quake if that rift extends onshore.

The massive fault system, which was previously considered as two separate faults, runs from San Diego Bay to Seal Beach, Orange County, and finally moves on the shore to the Los Angeles Basin.

These areas are now tagged as potential hazards despite the fault being on offshore because of its significant distance of no more than four miles from San Diego, Orange County, and Los Angeles County coast.

While the likelihood of a full rupture sits at 30-40%, lead author Valerie Sahakian, who is now a postdoctoral fellow at the USGS in Menlo Park, says that a smaller quake in the magnitude 5 or 6 range could still have a significant impact on the region.

More news: Vimeo arrives fashionably late to the 360 video party

This allowed them to generate a "nested survey" of the region, accounting for different resolution scales and depth penetration.

The claim was made in a new study that Scripps - which is part of UC San Diego - published this week in the Journal of Geophysical Research.

After drawing up a map of what was underneath, researchers found proof of what they'd suspected for years; the gap between the two systems was only 1 1/4 miles apart from each other, not 3 miles, as reported in the past. If such rapture occurred, the researchers warned that it could create magnitude 7.3 earthquakes.

"One of the reasons why this location is of importance is because in Southern California, the Big Bend, Carrizo, and Mojave sections of the San Andreas Fault accommodate 50-70% of plate motion". A stepover is a section in between faults where they don't directly meet. The 1933 Long Beach quake at the fault was magnitude 6.4, killing 115 people.

More news: White House plagiarizes ExxonMobil in an attempt to herald the oil giant



Like this

Latest


11 March 2017
Poland threatens to derail European Union summit over Tusk
Before heading into the meeting, French President Francois Hollande, Merkel and Muscat said that Tusk had their full support. It was the first time such a decision was made without unanimity since the job was created in 2009.

11 March 2017
USA bird flu cases have local farmers on guard
A turkey farm in Wisconsin also reported a less serious case of bird flu, but it didn't require the culling of an entire flock. Don't borrow disease-Do not share equipment or supplies with neighbors or other bird owners.

10 March 2017
Google has confirmed its Kaggle acquisition
As part of the partnership, SAP will retain the control and be the custodian of all the data stored in the HANA database on the Google Cloud Platform .

10 March 2017
Trump to nominate Noel Francisco for solicitor general
The role of Solicitor General doesn't usually make too many headlines, but that's nearly certain to change in the next four years. Francisco has argued before the Supreme Court on several occasions, including two high-profile cases from recent sittings.

10 March 2017
Hales added to England squad in West Indies
He was given out lbw on 93 off Kraigg Brathwaite but asked for a video review which showed the ball would have missed off stump. Hales is now fit to return to action, and is expected to replace Sam Billings at the top of the order alongside Jason Roy .

10 March 2017
'World's heaviest woman' has surgery in India, loses 100 kgs
The bariatric surgery, which shrinks the stomach and is used as a last resort to treat people who are dangerously obese, took place Tuesday.

09 March 2017
Buffalo Bills decide to keep QB Tyrod Taylor on restructured contract
For the second time in seven months, Tyrod Taylor has agreed to a new contract with the Buffalo Bills. McDermott was hired in January to replace former coach Rex Ryan - a staunch supporter of Taylor.

08 March 2017
Iranian vessels reportedly blocked Royal Navy and United States ships in 'unsafe' move
In February Iran tested medium-range ballistic missiles, which the U.S. said violated a UN Security Council resolution. The Strait of Hormuz is strategically important due to the amount of oil which passes through its waters.

08 March 2017
Poachers: Zoo Rhino Killed in Its Enclosure in France, Horn Sawed Off
Rhino horn is used as an aphrodisiac in China and can fetch as much as €200,000 on the black market. Zookeepers discovered his carcass Tuesday in the rhinoceros' enclosure.

08 March 2017
Bears Considered Frontrunner To Sign Mike Glennon
The 27-year-old is reportedly expected to command a deal between $14-$15 million on the open market. According to NFL.com, the Bears have emerged at the front-runners to sign Glennon.



Recommended