Tag Archive for: earthquake

Utah Geological Survey
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Kennecott slide triggered 16 earthquakes, study shows

deseretnews.com

The gargantuan awe-inspiring landslide at Kennecott’s Bingham Canyon mine last April was so stunning, the “firsts” and “mosts” it accomplished are something wild to ponder.

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Read further at The Salt Lake Tribune with this article—sltrib.com
“Kennecott landslide so big it triggered earthquakes”

Accelerating to speeds of up to 100 miles per hour, April’s massive landslide in Kennecott’s Bingham Canyon mine actually triggered earthquakes, the first time that is known to have occurred.

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Utah Geological Survey
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Earthquake Risk in the Salt Lake Valley

In Christchurch, New Zealand in February, 2011, a magnitude 6.3 earthquake struck six miles from the city center. The sandy type of soil present in the area caused the ground to basically liquefy during shaking.

UGS Geologist Chris DuRoss is interviewed by KCPW: Explore Utah Science to discuss the hazard of liquefaction we face right here in the the Salt Lake Valley.

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Earthquake Risk in the Salt Lake Valley

Michael Hylland, a geologist at the Utah Geological Survey, examines disruptions in the subsurface soil at a trench dug through a section of the Wasatch Fault

 

Utah Geological Survey
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Earthquake Risk in the Salt Lake Valley

kcpw.org

You wouldn’t know it from experience, but the Wasatch Front is one of the most seismically at risk areas in Utah and in the Intermountain West. Scientists are looking at thousands of years of earthquake history to learn more about the hazard we face. Kim Schuske has this story.

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Utah Geological Survey
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MORNING EARTHQUAKE; SOUTHERN UTAH IS EARTHQUAKE COUNTRY

st.georgeutah.com

An earthquake of local magnitude 2.7 occurred at 5:32 a.m., Tuesday, about 90 miles southeast of Cedar City in northern Arizona according to the U.S. Geological Survey website. The USGS also lists the quake at 3.0 magnitude because it uses a different rating system. A micro-earthquake of local magnitude 2.0 occurred last Wednesday 5 miles south of Hurricane; and another 2.0 occurred Sunday 13 miles north-northwest of Ivins.

 

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Utah Geological Survey

DO YOU HAVE EARTHQUAKE INSURANCE

sltrib.com

Thinking a bit about earthquakes today? A lot of people don’t realize that earthquake damage is not covered by basic homeowner’s insurance policies. If an earthquake damages or destroys your home and you don’t have earthquake coverage, you’re still obligated to pay your mortgage – even if you can no longer live in your home.

Whether or not earthquake insurance makes sense for you, however, depends a few things, such as where you live and how worried you are about earthquakes. Your financial situation is another factor, because earthquake coverage isn’t cheap. Many people pay $300 to $500 or more per year to be covered in the event of earthquakes. That’s in addition to the cost of your basic homeowner’s insurance policy. (Many major insurance companies do not actually sell earthquake insurance in Utah, but they can refer you to a specialty company that does sell the coverage.)

For more information about the risk of earthquakes in Utah, go here. The Utah Geological Survey also has a lot of good information here. The Utah Department of Insurance also has some information you may want to read here. Another good source of information is your homeowner’s insurance agent.

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Utah Geological Survey

MIDSIZE QUAKE HITS SOUTHWESTERN UTAH MONDAY MORNING

sltib.com

A 4.6 magnitude earthquake hit southwestern Utah early Monday morning.

The 5:06 a.m. quake could be felt in the sparsely populated area about eight miles northwest of Circleville and eight miles west of Junction. Several people called the Seismograph Stations at the University of Utah to report they experienced the pre-dawn shaking. No damage or injuries have been reported.

“It’s a moderate-sized earthquake, so we’re unlikely to have significant damage,” said Keith Koper, director of the U.’s Seismograph Stations. “But people will definitely be aware of it if they are relatively close to the epicenter.”

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Utah Geological Survey

UTAH SHAKES, RATTLES, AND ROLLS

Salt Lake Tribune

It wasn’t The Big One, but Thursday’s earthquake did enough shaking to make northern Utah take notice.

A 4.9 magnitude earthquake hit five miles northeast of Randolph at 5:59 p.m. Thursday, according to the University of Utah Seismograph Stations.

The shaking at the Rich County Sheriff’s Office in Randolph knocked down pictures, but did not generate reports of injuries or damages, said dispatcher Russ Handley.

At the Randolph Sinclair station, there was a loud rumble and some bottles tipped over, said manager Tammy Hoffman.

“It kind of shook people up, but some people who were driving [at the time] didn’t even know it happened,” she said.

A 4.9 is a “light” earthquake, according to Kristine Pankow, associate director of the University of Utah Seismograph Stations. It wouldn’t be enough to knock people over, but people would feel it, she said. However, it was the largest quake since 1992, she said. On average, Utah gets an earthquake of about magnitude 5 every 10 years, but this one waited 18.

“I guess it was just time,” she said.

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IN THE MEDIA

KSL.com
Deseret News
StarValleyIndependent.com

EARTHQUAKE RESOURCES

Utah Seismic Safety Commission
Putting Down Roots in Earthquake Country

Utah Geological Survey
University of Utah Seismograph Stations

Utah Geological Survey

GOVERNOR ANNOUNCES EARTHQUAKE PREPAREDNESS WEEK

ksl.com

Gov. Gary Herbert has designated April 4-10 as Earthquake Preparedness Week.

A website provides tips on what to do in preparation for an earthquake and its aftermath.

The Utah Seismic Safety Commission says about 700 earthquakes, including aftershocks, occur every year in Utah.

Roughly 80 percent of the state’s population would be affected by a magnitude 7.0 earthquake on the Salt Lake City segment of the Wasatch Fault.

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Utah Geological Survey

COULD A MAJOR EARTHQUAKE HIT SOUTHERN UTAH?

thespectrum.com

A series of springtime lectures starts Friday with a presentation on faults and earthquakes in southwestern Utah, scheduled for noon at the Interagency Information Center, 345 E. Riverside Drive in St. George.

Bill Lund, senior scientist with the Utah Geological Survey, is scheduled to give a presentation on the structure of active earth in southwestern Utah and give insight as to whether the region could experience an earthquake similar to those that recently affected Haiti, Turkey, Chile and Japan.

The April Brown Bag Program series, sponsored by the Dixie/Arizona Strip Interpretive Association, Bureau of Land Management, National Park Service and U.S. Forest Service, will feature lectures each Friday of the month, covering topics such as the geology of Kanab Point, the history of Pioche, and a musical Earth Day celebration.

Lectures are free to attend, but space is limited and those interested are encouraged to obtain tickets in advance from the Interagency Information Center.

For more information, call 435-688-3246.

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Utah Geological Survey

SPECIAL STUDY 130

ss-130PALEOSEISMIC INVESTIGATION OF THE NORTHERN WEBER SEGMENT OF THE WASATCH FAULT ZONE AT THE RICE CREEK TRENCH SITE, NORTH OGDEN, UTAH
Christopher B. DuRoss, Stephen F. Personius, Anthony J. Crone, Greg N. McDonald, David J. Lidke

This report presents new paleoseismic information for the northern Weber segment of the Wasatch fault zone, collected as part of a joint Utah Geological Survey and U.S. Geological Survey fault-trench investigation at Rice Creek. This research, which was partially funded through the National Earthquake Hazards Reduction Program, expands the record of Weber-segment paleoearthquakes into the early Holocene, provides new timing and displacement data for the most recent earthquake, and helps reduce uncertainties in earthquake timing, recurrence, displacement, and vertical slip rate. These results are important for understanding segmentation of the northern Wasatch fault zone and for improving earthquake-hazard evaluations of the region.

CD (27 p. + 9 p. appendices, 2 pl.)

SS-130……….$19.95

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