Taco Cowboy writes: Newly discovered link between different faults means potential larger quakes in California
The Hayward and Calaveras faults are essentially the same system, meaning that a rupture on one could trigger a rupture on the other, producing considerably larger quakes than once thought
Researchers have mapped the land at the southern end of the Hayward Fault and found that the creep continued 15 km beyond to merge with the Calaveras Fault, which was thought to be independent
"The maximum earthquake on a fault is proportional to its length, so by having the two directly connected, we can have a rupture propagating across from one to the other, making a larger quake," said lead researcher Estelle Chaussard, a postdoctoral fellow in the Berkeley Seismological Laboratory. "People have been looking for evidence of this for a long time, but only now do we have the data to prove it"
The 70-kilometer-long Hayward Fault is already known as one of the most dangerous in the country because it runs through large population areas from its northern limit on San Pablo Bay at Richmond to its southern end south of Fremont
Last month the U.S. Geological Survey estimated a 14.3 percent likelihood of a magnitude 6.7 or greater earthquake on the Hayward Fault in the next 30 years, and a 7.4 percent chance on the Calaveras Fault, but there is one problem — the estimate was based on the assumption that the two faults are independent systems, and that the maximum quake on the Hayward Fault would be between magnitudes 6.9 and 7.0
Given that the Hayward and Calaveras faults are connected, the energy released in a simultaneous rupture could be 2.5 times greater, or a magnitude 7.3 quake
"A rupture from Richmond to Gilroy would produce about a 7.3 magnitude quake, but it would be even greater if the rupture extended south to Hollister, where the Calaveras Fault meets the San Andreas Fault" Chaussard said
The UC Berkeley team used 19 years of satellite data to map ground deformation using interferometric synthetic aperture radar (InSAR) and measure creep along the southern end of the Hayward Fault, and found, surprisingly, that the creep didn't stop south of Fremont, the presumed southern end of the fault, but continued as far as the Calaveras Fault
Both are strike-slip faults — the western side moves northward relative to the eastern side. The researchers found that the underground portion of the Hayward Fault meets the Calaveras Fault 10 kilometers farther north than where the creeping surface traces of both faults meet. This geometry implies that the Hayward Fault dips at an angle where it meets the Calaveras Fault
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RemyBR writes: Softpedia points to a Nvidia Developer Zone forum post revealing that the company has removed a specific Linux feature as of the v310 drivers due to the Windows platform. A BaseMosaic user on Ubuntu 12.04 noticed a change in the number of displays that can be used simultaneously after upgrading from the v295 drivers to v310. Another user, apparently working for Nvidia, gave a very troubling answer: "For feature parity between Windows and Linux we set BaseMosaic to 3 screens".
New photos have appeared in Google Maps showing unidentified titanic structures in the middle of the Chinese desert. The first one is an intricate network of what appears to be huge metallic stripes, the second structure seems to be some kind of giant targeting grid, and the third one consists of thousand of lines intersecting in a titanic grid that is about 18 miles long.
caferace writes: "Despite an underwhelming start at the classic IOMTT races this year, electric sportbikes are looking to have some promise. "Mission Motors, a San Francisco based company redefining the world of performance motorcycles, announced today that its zero-emissions Mission One electric superbike has claimed the national AMA top speed record for an electric motorcycle, achieving a record 150.059 mph two-pass average run sustained for one mile at Bonneville Speedway on September 1st, 2009. Lead up to runs for the record saw one-way speeds across the mile stretch at 161mph.""
Slaine writes: More information has come to light about why Apple and NBC aren't seeing eye-to-eye on selling TV shows through iTunes (previous/.). NBC wants far more restrictive DRM, and demanded $4.99 pricing for TV shows, more than doubling the price. Apple has retaliated by refusing to sell NBC's new fall shows, even though they have a contract through the end of the year. Something tells me NBC will be regretting this decision once the new season of shows starts.