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Seismic Activity

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NEWS
May 24, 1985 | United Press International
Seismic activity beneath Mt. St. Helens increased Thursday as the southwest Washington volcano rumbled toward what scientists said could be an explosive eruption. Researchers predict a "dome-building" eruption centered on the 800-foot-tall lava dome in the volcano's crater sometime in the next few days to two weeks.
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NATIONAL
April 12, 2014 | By Paresh Dave
Ohio geologists have found a probable connection between fracking and a sudden burst of mild earthquakes last month in a region that had never experienced a temblor until recently, according to a state report. The quake report, which coincided with the state's announcement of some of the nation's strictest limits on fracking near faults, marked the strongest link to date between nerve-rattling shakes and hydraulic fracturing -- the process of firing water, sand and chemicals deep into the earth to eject oil and natural gas out of ancient rock.
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NEWS
June 10, 1998 | From Times Staff and Wire Reports
After six relatively quiet months, moderately strong seismic activity has resumed in the Mammoth Lakes area of the Eastern Sierra with a series of earthquakes late Monday and early Tuesday, the strongest registering magnitude 5.1. No damage or injuries were reported from the temblors, centered 11 miles southeast of Mammoth Lakes. The chief volcanic monitor of the area for the U.S. Geological Survey said the latest quakes were probably not volcanically related.
NATIONAL
March 30, 2014 | By Matt Pearce
Yellowstone National Park quivered early Sunday when the area's strongest earthquake in 34 years struck northwestern Wyoming, but no damage was reported. The epicenter of the magnitude 4.8 quake, which occurred at 6:34 a.m., was four miles north-northeast of Norris Geyser Basin, according to University of Utah Seismograph Stations. Seismic activity at Yellowstone isn't unusual, geologically speaking. The rugged land in the park, which boasts the world's largest collection of geysers, was formed by millions of years of volcanic activity.
NEWS
May 24, 1986 | JIM MANN, Times Staff Writer
Chinese scientists have detected a recent upsurge in seismic activity and believe that there may be another serious earthquake in China within the next year or two. "It seems that we will be challenged by some other earthquakes which are going to occur," said Gao Xu, chief of earthquake analysis and prediction for the No. 1 Research Center of China's State Seismological Bureau. "We don't hope another earthquake will occur, but we cannot exclude the possibility at any time."
CALIFORNIA | LOCAL
August 24, 2007 | Sharon Bernstein, Times Staff Writer
Earthquakes that struck Southern California over the last century killed more than 200 people and caused billions of dollars in damage. But new research to be released today says the Los Angeles area may actually be in the midst of a prolonged seismic lull. Geologists examined the size and frequency of quakes going back 12,000 years, finding patterns of heavy and lighter seismic activity every 1,000 to 1,500 years.
CALIFORNIA | LOCAL
August 26, 2012 | By Kate Mather, David Zahniser and Abby Sewell, Los Angeles Times
An "earthquake storm" continued to rattle Imperial County late Sunday, with the region experiencing hundreds of mostly low-intensity temblors that could be felt in neighboring counties. The seismic activity is not unusual for the area around Brawley, a city of about 25,000 where the quakes were centered and located between the San Andreas and Imperial faults, experts said. The spurt of smaller quakes does not necessarily herald that the Big One is on its way, they said. After a series of milder quakes in the morning, a magnitude 3.8 temblor hit at 10:02 a.m. about three miles northwest of Brawley, and was followed by a nearly continuous series of quakes in the same general area, according to the U.S. Geological Survey.
CALIFORNIA | LOCAL
October 10, 2012 | By Ruben Vives, Los Angeles Times
A long-awaited study released Wednesday says the controversial oil extraction method known as hydraulic fracturing, or fracking, would not harm the environment if used at the Inglewood Oil Field in the Baldwin Hills area. The yearlong study included several issues raised by residents living around the field, such as the potential risks for groundwater contamination, air pollution and increased seismic activity. For months, water wells on the 1,200-acre field were monitored. Data from ground and air monitors were collected and analyzed, but no effects were recorded before or after the technique was used, the study says.
NEWS
May 27, 1985
Earthquakes of increasing intensity and strength rattled Mt. St. Helens as pressure built toward an eruption expected within days, scientists said in Vancouver, Wash. "We have increased earthquake activity through the day and we are still building to that eruptive activity we expect," said Chris Jonientz-Trisler, who monitors seismic activity for the University of Washington geophysics center in Seattle.
CALIFORNIA | LOCAL
March 10, 2014 | By Rong-Gong Lin II
Sunday's magnitude 6.9 earthquake occurred close to the Mendocino Triple Junction, located in the Pacific Ocean off the coast of Cape Mendocino, said U.S. Geological Survey seismologist David Oppenhiemer.   The site of many earthquakes, it  is the northern terminus of the San Andreas fault and the southern end of the Cascadia Subduction Zone, capable of producing a magnitude 9.0 earthquake and tsunami that can hit Japan. Sunday's earthquake occurred west of the triple junction on the Gorda plate, which is being hit by the northern advance of the Pacific plate as it moves toward Alaska.
CALIFORNIA | LOCAL
October 24, 2013 | Elaine Woo
Vladimir Keilis-Borok, an internationally known seismologist and geophysicist who never wavered in his dogged pursuit of what he called his profession's "holy grail" -- a method to accurately predict earthquakes -- died Saturday at his Culver City home after a long illness. He was 92. His death was announced by UCLA, where he had been a professor since 1998. The eminent Russian scientist garnered headlines after two large temblors -- in Japan and Central California -- occurred in 2003 within the time frame forecast by his international team of earthquake experts.
CALIFORNIA | LOCAL
October 10, 2012 | By Ruben Vives, Los Angeles Times
A long-awaited study released Wednesday says the controversial oil extraction method known as hydraulic fracturing, or fracking, would not harm the environment if used at the Inglewood Oil Field in the Baldwin Hills area. The yearlong study included several issues raised by residents living around the field, such as the potential risks for groundwater contamination, air pollution and increased seismic activity. For months, water wells on the 1,200-acre field were monitored. Data from ground and air monitors were collected and analyzed, but no effects were recorded before or after the technique was used, the study says.
CALIFORNIA | LOCAL
September 22, 2012 | By Ruben Vives, Los Angeles Times
A much-anticipated report that evaluates the potential effect of a controversial process called hydraulic fracturing, or fracking, on the Baldwin Hills area is scheduled to be released next month, officials confirmed this week. The study was launched a year ago at the 1,200-acre Inglewood Oil Field, which is owned and operated by Plains Exploration & Production Co., and completed in July. The news comes on the eve of Saturday's planned rally in Culver City to call on lawmakers to ban fracking, a technique that fractures rock formations to release trapped oil and natural gas. The process involves a high-pressure injection of water, sand and chemical additives into a drill site's wellbore.
CALIFORNIA | LOCAL
August 26, 2012 | By Kate Mather, David Zahniser and Abby Sewell, Los Angeles Times
An "earthquake storm" continued to rattle Imperial County late Sunday, with the region experiencing hundreds of mostly low-intensity temblors that could be felt in neighboring counties. The seismic activity is not unusual for the area around Brawley, a city of about 25,000 where the quakes were centered and located between the San Andreas and Imperial faults, experts said. The spurt of smaller quakes does not necessarily herald that the Big One is on its way, they said. After a series of milder quakes in the morning, a magnitude 3.8 temblor hit at 10:02 a.m. about three miles northwest of Brawley, and was followed by a nearly continuous series of quakes in the same general area, according to the U.S. Geological Survey.
CALIFORNIA | LOCAL
September 2, 2011 | By Rong-Gong Lin II, Los Angeles Times
A magnitude 4.2 earthquake fluttered through much of Southern California on Thursday afternoon, the largest quake to be felt in the Los Angeles area in more than a year. But the shaking was so soft many people just carried on with their day. "Just a rolly," said an operator at Olive View-UCLA Medical Center in Sylmar, two miles southeast of the epicenter in the San Gabriel Mountains. "It didn't even move my chair. " "There was no screaming out that I was aware of," said Joe Keys, a hospital assistant administrator, who described the quake as lasting only a few seconds.
CALIFORNIA | LOCAL
January 28, 1998
This weeks subject: Volcanoes The Mammoth Lakes area of California has been rocked by thousands of earthquakes in recent months. Scientists say the seismic activity is being triggered by volcanic lava flow like that seen at left from Hawaii's Kilauea volcano. Predicting if or when volcanoes will erupt is important because the destructive force can be greater than that of several atomic bombs. Students and others can learn more about volcanoes by using the direct links on The Times' Launch Point Web site.
NATIONAL
March 30, 2014 | By Matt Pearce
Yellowstone National Park quivered early Sunday when the area's strongest earthquake in 34 years struck northwestern Wyoming, but no damage was reported. The epicenter of the magnitude 4.8 quake, which occurred at 6:34 a.m., was four miles north-northeast of Norris Geyser Basin, according to University of Utah Seismograph Stations. Seismic activity at Yellowstone isn't unusual, geologically speaking. The rugged land in the park, which boasts the world's largest collection of geysers, was formed by millions of years of volcanic activity.
NEWS
March 11, 2011 | By Michael A. Memoli, Washington Bureau
Federal officials urged Americans to continue to heed all tsunami warnings until they are lifted, saying the initial effect is not necessarily the worst. "There can be surges, currents and other problems -- particularly in bays and harbors and around islands -- that can impact you for up to 12 hours, or even longer," said Laura Furgione, deputy director of the National Weather Service. "The first wave is not necessarily the end of your problem. " FEMA administrator Craig Fugate said that to this point, damage to the United States appears to be limited, centered on marinas, boats and roads near the water.
NATIONAL
October 28, 2009 | Ralph Vartabedian
A big earthquake and resultant fire could trigger potentially deadly releases of radioactive materials from Los Alamos National Laboratory in New Mexico due to "major deficiencies" in the nuclear weapons lab's safety planning, federal safety experts warned Tuesday. The warning from the Defense Nuclear Facilities Safety Board was sent to Energy Secretary Steven Chu, urging him to "execute both immediate and long-term actions." A spokeswoman for the National Nuclear Security Administration, a part of the Energy Department, said, "We are currently evaluating the board's recommendation and preparing a formal response."
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