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Show 10 Thursday, December THE GREEN SHEET 10, 1987 Side West Be On Would Lighter Earthquake Damage MAGNA. According to Craig Nelson, engineering geologist with Salt Lake County, in case of an earthquake, if you live in Magna or Kearns your position isnt nearly as bad as it would be if you lived in other parts of the county. Nelson was speaking to the Magna Community Council last week, outlining potential risks of earthquakes in general and the Salt Lake Valley in particular. He noted that over the past five years between $5 and $6 million have been pumped into this area by the federal government to investigate earthquake hazards. Reviewing geological hazards, Nelson says they fell into four main categories. Ground shaking, liquifaction, and landslides, debris flow. The reason we have is the motion earthquakes between the North America and Pacific plates that are slowly sliding by each other. The plate movement exerts a force factor between the Wasatch Front and the Sierra Nevada range and the area between is getting stretched. It is a series of basins and mountain ranges," Nelson said, Salt Lake sits on the very eastern edge with Reno on the extreme western edge." He went on to say that 50 Arts Help Sought MAGNA. The Magma Arts Council is seeking interested persons to serve as board members. Applications must be received by Mike Retford, president of the organization by Dec. 21. The terms of office will be three years. Retford said that there are four positions open. Other officers of the council include Maggie Iloweison, vice president; Bill Gray, treasurer million years ago it probably took only five hours to reach Reno because at that time the plates were so much closer together, but as the stretching has taken place over the years they are farther apart. Pointing out that the Wasatch Front is part of the international earthquake belt, Nelson said that we can expect a major quake ranging from 7 to 7.2 all the way north to Tremonton, and south to Nephi. "When such a thing happens you foot vertical can expect a horizontal with displacement cracks up to 12 feet wide," Nelson said. "Taking an average of the 10 or 12 segments on the fault line, we have determined that we get a major earthquake ever 444 years. When was the last one? Under the Nephi fault segment 500 years ago. It may happen tomorrow or not for another 100 years, but we must try to minimize risks now in the event it does happen." Nelson said that information made from trenching studies using a backhoe to trench across the scarp showed that it only two-fovertical takes a to completely displacement collapse a building. "We have mapped the faults in Salt Lake County and there are two major ones," Nelson said. "The Wasatch Fault zone follows from the Drive Highland Mall Cottonwood to the University of Utah then jogs down to the Salt Palace and Beck 5 Street." "The West Valley Fault also presents a risk, and as the result of a trenching study we have found that it is directly in line with UDOT and American Express," he said, "The American Express parking lot is on the fault, and at the UDOT facility the fault runs right through the and Susan Ieckman, secretary. Current council members include Linda McGettigan, police academy." Nelson said they have made a Glenda Gunn, Elaine Whitman, Eva Van Wagoner and Lois geological map of the area and have drawn a buffer zone around Lower. the faults to show developers The annual and meeting of new board where to and where not to build appointment members will take place on Feb. housing. He also noted that ground 23. Also new officers will be elected at that time. shaking is the most widespread hazard was and Activities during the past year seismic include organizing and formally responsible for the destruction of incorporating the arts council, San Francisco in 1906. Mexico building a float that appeared in City was leveled by the same five different parades, including cause. "The interesting thing about the Days of 47 Parade, and which that won first place in the parade here quake was the factjthat it was built on an old lake bed, and on July 4. The group was also responsible Salt Lake is built on the same for providing live entertainment type of soil from old Lake at the Magna celebration on July Bonneville. "The secondary hazard from 4th at the Copper Community Park, as well as sponsoring a ground shaking is fires that follow literary contest and lending in the wake of the earthquake," continual support for the Top Hat Nelson said, "But the uniform Theatre at the Magna Recreation building code recognizes we have a problem because the Wasatch Center. "Were looking forward to Front is in seismic zone three, the organizing an arts festival in second highest in the nation Magna for local artists to display (California is highest) and when there is shaking in bedrock and and sell their work," Retford said. seismic waves travel a long way and are amplified in the valley JK CRAFTS 3448 South 5600 West Tole Painting Classas Tole Paints, Yarn, Counted Cross Stitch, Balloon Bouquets, "How To" Books, Silk Flowers Make It and Take It Every Saturday stable becomes like quicksand. "It has happened sometime in the past in the Salt Lake Valley," he added. "In Japan in 1964, the soil liquified and the buildings simply rolled over, he said, "But it not only damages buildings it damages pipes. It is very bad for buried gasoline tanks and septic tanks, as well as water pipes, and in Anchorage, Alaska the rupture of water pipes prevented them from putting out the fires." According to the liquifaction map, the areas most susceptible are along the Jordan River and some tributaries along Little Cottonwood and Big Cottonwood Creek. Most of the downtown Salt Lake area and a little over half of West Valley City is subject to liquifaction. "There is a greater than 50 percent chance in the next hundred years of some of these areas liquifying during a ground shaking." Also part of the discussion was the failure to plan when people build on slopes that are steeper than 30 percent, and the county is now requiring specific standards to stabilize slopes. In addition Nelson said that a debris flow is like a landslide, which has more viscosity like the Farmington episode that happened in 1984. Nelson said that the Wasatch Front, Holladay and Millcreek are subject to rock falls, but the Oquirrh Mountains are in pretty good shape since most of the rock fall occurs on the west side of the mountain range. There is also the danger of flood hazards in the event of an earthquake which comes from streams, lakes and ground water. "But we now have a good handle on flooding because we now where the 100 year and the 500 year flood plains are. But if the Wasatch fault slipped two feet down, the Great Salt Lake would what to do. And he stressed into downtown Salt Lake and know how to turn off the natural having emergency food and water Davis County." gas supply, which causes fires. He supplies, as well as a battery r According to Nelson, if the valley suggested putting a radio, a flash light, and operated so valve tilts, all the sewer lines will flow wrench near the shutoff the bed side so you near slippers the other way. He also said that you wouldnt have to hunt for one where see can you are going, keep single family dwellings are pretty in the event of a quake. the emergency with abreast home advised He also having resiliant and generally dont radio station the on instructions collapse unless they are right on drills with the family because it from being feet and your prevent be who might prepares children top of the fault. with broken cut glass. As to which kind of house is alone when one occurs to know most liable to ride out an earthquake, Nelson said that earthquake insurance premiums cost $100 a year for a frame house EXAMINATION and $800 a year for brick. If an earthquake does hit it is By Appointment With This Coupon Only best to stay inside of the building, and the best place to be is in the call 967-333- 8 bathroom because it is the smallest room in the house, has So. Redwood DR RON BROWN the most wall area, and the Podiatrist Foot Specialist fewest things falling down. DISEASES & SURGERY OF THE FEET What can you do to prepare for an earthquake? Secure your Callouses, corns and bunions Bone spurs and calcium deposits water heater with bands of steel Arch problems Running iniuries to prevent it tipping over and Ingrown toenails Warts filling your basement with 40 or Foot pain and other problems involving 50 gallons of water. Also the feet and lower extremities water left in a tank that is LASER THERAPY MACHINE secured can be used for culinary x rays are Insurances Most purposes if the water lines break. Expires 123187 extra if needed Accepted In addition homeowners need to flow three-quarte- min 4370 I -- n coupon n srszStenn 2222 West 3500 South 9000 South 111 West D West Valley Sandy oa. 9O U 0 Sizzlin HRS: Mon. to Thurs. p.m.. Sat. 9 a.m. to STEAK HOUSE NEW ITEM - 11 10:30 BARBEQUE BEEF RIBS $)9 0, a.m. to 10:30 p.m. 11 9 BREAKFAST BAR ALL YOU CAN EAT No Coupon D a.m. to 9:30 p.m., Fri. 9 a.m. to p.m., Sun. Required on This Item. 9:00a. m.to2:00 p.m (Includes Free Omelet) Breakfast Bar Includes All You Can Eat: Scrambled Bacon, Ham, Eggs, Sausage, Waffles, French Toast, Hash Browns, Country Gravy, Pastries, Plus Fresh Fruit and Salad Bar. ICOUPONQ 'Mp sediment." He went on to say that a very well designed building may only sustain a small amount of damage, but a poorly designed one can be totally destroyed. Nelson said that liquifaction occurs when there is a high water table and sandy soil, and the areas most vulnerable are from 5600 South north to the Davis County line and west to 7300 West. With the movement of the earth, ground that was formerly IsThereADodorln The Neighborhood? I'Jhieh Perm Cost $22.35? The one on the left. She came to Tliird Dimension Cuts. The other woman paid $40 at a high priced salon for the same perm. And paid extra for a cut and style. A costly mistake. Because our penns run from $22.93 to $39.95, and include cut and style. And eveiy one of them is about $15 less t h;ui other salons. And you never need an appointment. TE3DRD mmmi ait I7e Dont Make You 3875 W. 5400 South IV (West Point Center next to Albertsons) - To advice on finding a physician whos just right for your familys needs. 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