CHAPTER 12 KERN RIVER VALLEY PLANT ATTACHMENTS Attachment - KRV - 63896, 65562, 65590, 67589 1 (Kern Canyon Fault documents) Attachment - KRV - 66170 1 (2011 Sanitary Survey Report) Attachment - KRV - 66170 2 (Drinking Water Program) Attachment - KRV - 66170 3 (Excerpt from CH16 of WWS) Attachment - KRV - 71153 1 (Tank Inspection Report) 15 663698 Inactive fault may trigger big quake after all - SFGate Page 1 of 3 KRV Advertisement63896_65562_65590_67589 1 F ° San Francisco, CA(change) 59 Clear Today Sat. 46/68 46/66 5 Day Forecast Traffic Friday Mar 22, 2013 10:14 AM PT nmlkji sfgate.comnmlkj Web Search by YAHOO! nmlkj Businesses Sign In | Register Home News Sports Business Entertainment Food Living Travel Columns ShoppingCars Jobs Real Estate Index ▼ Bay Area & State Nation World Politics Crime Tech Obituaries Opinion Green Science Health Education Weird Inactive fault may trigger big quake after all Photo Galleries Displaying 1-3 of 40 David Perlman, Chronicle Science Editor Published 4:00 am, Sunday, July 11, 2010 Road Movies Favorite dishes 8271 Skyline Cir, 3/22/2013 Oaklan From Around the Web Tax Credits on House Repairs (eHow) The Deadly Health Risk Most Pot Smokers Don’t Know About (Take Part) Who Really Profits from the Basketball Tournament? [INFOGRAPHIC] (H&R Block) [?] A seismic fault in the Sierra Nevada, believed to Most Read | Most Commented 0 0 have been quiet for more than 3 million years, is 1. Flash sales: Homes snapped up in 24 hours Like active after all and capable of triggering strong 2. Former NBA player trashes his foreclosed quakes with magnitudes of 6 or even 7, home Comments (0) Email This 3. Tumbling boulder hits SUV on 101 scientists say. 4. Man finds grenade in Golden Gate Park Larger | Smaller Font 5. Road Movies Printable Version The Kern Canyon Fault, stretching for nearly 90 6. Ex-Titans cheerleader arrested for soliciting miles from north to south above the San Joaquin boy 7. 6 Ways The iPhone 5 Still Outshines Valley east of Bakersfield, cuts beneath a major Samsung's Galaxy S4 (AAPL, GOOG) flood control dam on the Kern River. Today's Deal For a half-dozen years those who oversee the 57-year-old Isabella flood control dam above $49 -- All-Day Salmon or Cod Deep Sea Bakersfield, as well as California Institute of Technology geologists, have been studying Fishing off Monterey the fault closely. SALE ENDS IN "It came as a surprise to see that a long-inactive fault can produce significant quakes," said 2d:13h:42m geologist Elisabeth Nadin of Caltech, who has hiked the sparsely populated rugged terrain PRICE and mapped where evidence showed the fault ruptured violently at least 3,300 years ago. $49 Geologists working for the Army Corps of Engineers have also studied the fault's potential for rupturing and are surveying the dam to determine whether it needs strengthening against future large quakes. The fault emerged some 86 million years ago when the immense granite mass of the Sierra was uplifting, said Nadin, who has found the evidence of past violence in the rocks around it. For millions of years, the mountains around the fault rose and subsided again. Volcanic activity continued, and a pulse of volcanism about 3.5 million years ago left a lava flow at the fault's northern end, she said. Nadin said, "Seismic activity on the fault continues today." Nadin, who just received her doctorate from Caltech, and her former Caltech adviser, Jason B. Saleeby who has also studied the fault, are publishing results of their findings in 699 http://www.sfgate.com/bayarea/article/Inactive-fault-may-trigger-big-quake-after-all-3258998.php 3/22/2013 Inactive fault may trigger big quake after all - SFGate Page 2 of 3 the September issue ofKRV the Bulletin of the63896_65562_65590_67589 Geological Society of America. FROM OUR HOMEPAGE 1 Typical of the evidence for recent temblors that Nadin cited are a series of "fault scarps" - small jagged cliffs 6 feet or more high - that run along the west side of the fault and indicate where the land was abruptly lifted up by the force of a quake. Those scarps, she said, show little evidence of erosion - a sign that they were uplifted relatively recently. During her field explorations along the fault, Nadin said, she also found scores of rounded boulders - deposits from a period of intense glaciation some 12,000 years ago - that had been lifted up from deep beneath the surface by much more recent earthquake activity. Devil’s Slide drive nears end This is the last weekend to take the dizzying, dangerous drive on Hwy. 1 before tunnels finally Ronn S. Rose, the dam safety program manager for the Army Engineers in Sacramento, open. and Keith I. Kelson, senior geologist at the earthquake consulting firm of Fugro William Lettis & Associates in Walnut Creek, are among a group of specialists surveying the fault because of potential hazard to the dam. They have also studied evidence of recent seismic slip along the fault with a series of six deep trenches, isotope studies and drilling to reveal the ages of past quakes there. Rose, Kelson and other geologists working for the Corps of Engineers said in a recent report that their evidence suggests that the Kern Canyon Fault could generate earthquakes Road movies: Hot and not As 'On the Road' opens, a look at many film with magnitudes "from 6.5 to perhaps 7.5." journeys, some great, like this erotic trip, others a slog. Kelson said in an interview that the two-unit dam is considered a "critical facility" because the fault runs directly beneath one abutment of the dam's auxiliary unit. "It would likely cost hundreds of millions of dollars to replace it in the event of complete failure," he said. Although there is good evidence to determine the "slip rate" of recent movement along the fault, Rose said, it appears to be moving far more slowly than the annual slip rate along the Why so snarky, daddy? San Andreas Fault - "a hundred times slower," he said in an interview. Gossip blogger Perez Hilton insists he'll change his ways as he releases photos of son. The Isabella dam was built in 1953, primarily for flood control along the Kern River and to provide irrigation water for major Kern County farms around Bakersfield. In her study, Nadin noted that many active faults lie in the region, notably the Garlock and White Wolf faults. Whether those two have links deep underground to the Kern Canyon Fault is unknown, she said. The White Wolf Fault is considered potentially dangerous today because it ruptured violently in 1952 with a magnitude 7.3 quake that killed 12 in the tiny town of Tehachapi. Printable Version Email This Like 0 From Around the Web [What's this?] We Recommend The birth of a global currency (Business Without Borders) Is Kristen Stewart getting romantic with a female friend? 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Username Register Password gfedc Remember Me Sign In 700 http://www.sfgate.com/bayarea/article/Inactive-fault-may-trigger-big-quake-after-all-3258998.php 3/22/2013 Corps of Engineers studies risk of fault under Lake Isabella Dam | Article | The United States Army Page 1 of 3 Homepage > News Archives > Article KRV 63896_65562_65590_67589 1 Corps of Engineers studies risk of fault under Lake Isabella Dam October 30, 2009 By Mr. William Byrd (USACE) Like Sign Up to see what your friends like. Story Highlights z The Sacramento District is studying fault activity near the Lake Isabella auxiliary dam. z Engineers and geologists are digging a series of trenches and boring deep holes to study soil samples. z Studies revealed that the Kern Canyon fault, which runs beneath the auxiliary dam, is capable of causing large magnitude earthquakes z Results of the studies will be used to determine what remediation measures the Corps will need to take to keep the dam safe. LAKE ISABELLA, Calif. - Many dams throughout the world, Related Links even recently constructed ones, are located on active USACE News faults. One such dam, located at the Corps-managed Lake HQ US Army Corps of Isabella, is considered at risk after U.S. Geological Survey Engineers (USGS) studies revealed that the Kern Canyon fault, which runs beneath the auxiliary dam, is capable of US Army Corps of Engineers Sacramento District causing large magnitude earthquakes. Lake Isabella Dam Contractors working for the U.S. Army Corps of Engineers are nearing completion on a study of the fault at Lake Isabella by conducting two geotechnical exploratory actions near the auxiliary dam. Study results will be used as part of the Isabella Dam Safety Assurance Program. 701 http://www.army.mil/article/29633/Corps_of_Engineers_studies_risk_of_fault_under_Lake_Isabella_Dam/ 3/22/2013 Corps of Engineers studies risk of fault under Lake Isabella Dam | Article | The United States Army Page 2 of 3 Partnered with the Corps on the trenchingKRV and drilling 63896_65562_65590_67589 at Isabella are various trenching 1 and drilling contractors and geologists, said Tony Kittner, Isabella Dam project geologist, Sacramento District geotechnical engineering branch, who referred to some of the contractors and geologists as the "best in the world." The USGS is also performing geophysics work on the auxiliary dam and upstream in the delta region below nearby Kernville, Calif.