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Geotimes March 2007 Carolyn Gramling |
New Madrid Fault Dying? A series of devastating earthquakes that altered the course of the Mississippi River in the early 19th century may have been among the last gasps of an old, dying fault system, a controversial new study suggests. |
Scientific American June 2009 Charles Q. Choi |
Are Midwestern Earthquake Faults Shutting Down? Midwesterners may have already seen the last of earthquakes in their region |
Geotimes June 2005 Naomi Lubick |
California Earthquake Roundup Several significant earthquakes have struck California this week, ranging from 4.9 to 7.2 in magnitude, with two off the coast of Northern California and two in the Los Angeles basin. Scientists say that they are mostly unrelated. |
Geotimes October 2006 Jennifer Yauck |
River Bends Reveal Past Quakes The connection between river courses and earthquake activity is allowing seismologists to look at past earthquakes along a Midwestern fault zone with new perspective, and could enable them to more accurately assess future earthquake risk in the Mississippi region. |
Geotimes November 2005 Naomi Lubick |
Shift in Chile's Seismic History New research documenting tsunami deposits in the Nazca plate region is resetting the seismic clock. |
Geotimes July 2003 Greg Peterson |
Quake protection in the heartland A new building code based on a USGS map of earthquake risk suggests that buildings within the New Madrid zone -- which stretches from just west of Memphis, Tenn., to southern Illinois -- should meet the same seismic standards as those in California. |
Geotimes March 2005 Naomi Lubick |
Magnitude-8.7 Earthquake Hits Sumatra, Small Tsunami Wave Detected An earthquake that was quite close the site of December's catastrophic quake has prompted warning bulletins from NOAA's Pacific Tsunami Warning system suggesting the evacuation of coastlines within 1,000 kilometers of the epicenter. |
Geotimes June 2004 Naomi Lubick |
Super-Size Quake California fell into the sea during a television miniseries aired by NBC. In addition to the other faulty geologic premises of the melodrama, one elemental error is the size of the earthquake that spawned the miniseries' disasters. |
Geotimes December 2003 Naomi Lubick |
Cascading earthquakes in L.A. A new understanding of the fault architecture underlying the Los Angeles basin that takes into account the effects of cascading tremors along adjacent faults has led seismologists to reconsider the seismic threats to the Los Angeles metropolis. |
Geotimes December 2005 Kathryn Hansen |
Earthquake Shakes East Africa A magnitude 6.8 earthquake shook the Lake Tanganyika region in Africa today. |
Geotimes May 2007 Carolyn Gramling |
Slow Earthquakes, Tiny Tremors Small earthquakes and tiny tremors originating deep in fault zones are the result of slow earthquakes at Earth's surface, according to a new study. |
Geotimes March 2006 Kathryn Hansen |
Earthquake Jostles Iran After an evening of precursory tremors, a magnitude-6.1 earthquake struck western Iran today. |
Geotimes December 2003 Naomi Lubick |
San Simeon Earthquake Seismologists have tentatively pegged the source of December 22's 6.5-magnitude earthquake that destroyed the landmark building in the town of Paso Robles and killed at least two people. |
Geotimes November 2007 Carolyn Gramling |
Tsunami Risk High in Myanmar Once thought to be relatively seismically quiet, the northern part of the Bay of Bengal may instead be prone to giant earthquakes that could spawn tsunamis, with potentially devastating consequences for the bay's densely populated coasts, according to a new study. |
Geotimes December 2006 Margaret Putney |
Tsunami Risk Still High in Sumatra Another major earthquake and tsunami will strike the western coast of Sumatra sometime in the next few decades, according to researchers studying the region's history. And the predicted tsunami has a significant chance of hitting densely populated areas, the team says. |
Geotimes June 2004 Megan Sever |
Midwest Shaking An earthquake rattled northwestern Illinois and points across the Midwest this morning Monday, June 28 at about 1:10 a.m. local time, according to the U.S. Geological Survey. |
Geotimes August 2003 Naomi Lubick |
Fast earthquakes break speed limit Some earthquakes may move faster than seismologists once thought possible. A new study published in the Aug. 8 Science shows the most convincing data yet that a large earthquake can travel down a fault at velocities that surpass theoretical limits. |
Geotimes March 2005 Susan E. Hough |
Earthquakes: Predicting the Unpredictable? Seismologists are quite good at identifying where large earthquakes are likely to occur on time scales of several decades to centuries, but still unable to identify regions where earthquakes will happen tomorrow, next week, or even within the next few years. |
Geotimes November 2005 Naomi Lubick |
Bolivian Earthquake Strikes Deep A magnitude-6.9 earthquake rumbled through Bolivia and northern Chile yesterday. No immediate deaths or damage were reported, although people evacuated their homes. |
Geotimes November 2005 Naomi Lubick |
Earthquakes Hit China and Iran Two earthquakes killed dozens of people over the weekend, in southern China and a continent away in southern Iran. |
Geotimes November 2007 |
Down to Earth With.... David Applegate An interview with David Applegate: historian, geologist, Congressional Science Fellow, former editor of Geotimes, and presently the head of the U.S. Geological Survey's Earthquake Hazards Program. |
Geotimes February 2006 Kathryn Hansen |
Earthquake Rocks East Africa The East African Rift Zone experienced a damaging magnitude-7.4 earthquake Thursday in Mozambique, centered about 215 kilometers southwest of Beira. |
Geotimes March 2005 Sara Pratt |
Quake Uplifted Japan A large 17th-century earthquake comparable in size to the Dec. 26 Sumatra quake was responsible for pushing up land in Japan, according to new research based on the sediment record of a large tsunami. |
Geotimes January 2006 Naomi Lubick |
Seismic Warnings Researchers suggest that the first few seconds of an earthquake have the potential to reveal the final size that an earthquake will grow to be -- with implications for how earthquakes physically unfold. |
Geotimes March 2003 Robert M. Hamilton |
Milestones in Earthquake Research This year, the first national program for earthquake research turns 25. More importantly, Congress will consider its reauthorization in the upcoming session. As we look to its future incarnation, it is worth keeping in mind what led to the program in the first place. |
Geotimes November 2006 Rod Combellick |
Building a Natural Gas Pipeline Through Earthquake Country With proposals now being considered to build a natural gas pipeline, it is ever-important to understand the seismic hazards along potential routes, so that the pipeline and its spurs can be properly designed and managed for seismic safety. |
Geotimes March 2004 Mark Zoback |
Earthquake Prediction and the Developing World The toll from the Iranian earthquake in December -- at least 30,000 dead and an estimated 40,000 homeless in just a few seconds -- is difficult to comprehend. Unfortunately, we can predict with reasonable certainty that sometime in the next few years, in a country with buildings unprepared to withstand disaster, a catastrophic quake will happen again |
Geotimes August 2005 Naomi Lubick |
Brian Atwater: Earthquake Hunter in the Field Brian Atwater has spent nearly two decades investigating the great tsunami of 1700 that swamped the coastline of the Pacific Northwest and traveled all the way to Japan with devastating effects. |
Geotimes October 2003 Josh Chamot |
Earthquake warning tools The ability to forecast a seismic event has been an elusive goal, but researchers are accepting the challenge and are using recent advances in seismic and computational technology to attempt to decipher Earth's subtle clues. |
Geotimes May 2006 Kathryn Hansen |
Earthquake Sends Tonga Trembling Strong shaking awoke residents of Tonga when a magnitude-7.9 earthquake rocked the region today. Although Tonga is seismically active, seismologists say that such a large-magnitude event is unusual for the region. |
Geotimes June 2005 Naomi Lubick |
California Earthquake Spawns Tsunami Worry The epicenter of a magnitude-7.2 earthquake that struck off northern California set off a tsunami warning for the entire West Coast, leading to an evacuation from Crescent City, Calif. |
Geotimes March 2004 Naomi Lubick |
Seismic premonitions While most seismologists tend to steer clear of the word "prediction," several international teams are working toward that "holy grail" of seismology. One such team released a forecast in January, saying that an earthquake of at least magnitude 6.4 would occur in Southern California before Sept. 5, 2004. |
Geotimes June 2005 Megan Sever |
Quake Shakes Chile A magnitude-7.8 temblor rocked northern Chile and was felt throughout parts of Peru and Bolivia, including in the capital city of La Paz, according to the U.S. Geological Survey (USGS). The quake was centered in the remote and mostly unpopulated northern Andes region of Tarapaca. |
Geotimes December 2005 |
Highlights 2005 -- Natural Hazards Drilling a fault... Mount St. Helens awakens... Reviewing Sumatra... SAFOD crosses the fault... |
Geotimes March 2005 Laura Stafford |
Sumatra Seismic Risk Recent research indicates that Indonesia, as well as other regions like the Caribbean, could experience more earthquake and tsunami activity in the near future. |
Geotimes April 2005 Naomi Lubick |
Sumatra Quake Stronger Than Thought Now that researchers have had time to go back to the records, they are finding indications that last December's Sumatra earthquake released much more energy than they thought, in the form of rare low-frequency seismic waves. |
Popular Mechanics May 13, 2008 Erik Sofge |
3 Frontiers in Earthquake Tech to Aid China--and Help the U.S. Can a network of GPS sensors store enough data online to scout the Bay Area's looming quake? And could the rig work in the Chinese countryside? |
Geotimes April 2003 Gary E. Christenson |
Life Along the Fault: Reducing Risk in Utah Large earthquakes do not occur often enough in Utah to "remind" people that they are living and building in earthquake country. This scenario presents a unique challenge for the state geological survey. |
Geotimes October 2004 Jay Chapman |
Melting Glaciers Promote Earthquakes In southern Alaska, melting glaciers heat up the possibility of earthquakes. |
Geotimes November 2005 Naomi Lubick |
Large Quake, Small Tsunami for Japan A large earthquake several hundred kilometers offshore Japan triggered a tsunami warning and a subsequent small tsunami. Three or four large events have occurred on this subduction fault over the past several centuries, as the Pacific plate slowly presses westward under Japan. |
Geotimes February 2004 Naomi Lubick |
Irian Jaya quakes Several large earthquakes have slammed Papua, the easternmost part of Indonesia formerly known as Irian Jaya, over the past two days. Immediate reports of the dead and injured are in the tens, with the latest estimate from the Associated Press at 26 people killed. |
Geotimes July 2004 Jay Chapman |
Earthquake Rattles Tibet Early Monday morning, an earthquake shook the sparsely populated Gangdise Mountains in Tibet. |
Geotimes February 2005 Naomi Lubick |
Tsunami Devastates Asia Geoscientists won't know exactly what happened in the Indian Ocean event until they can get into the field. |
Geotimes July 2007 Susan Hough |
Sizing up Earthquake Damage: Differing Points of View Journalists and scientists may share interest in catastrophic events, but they have very different missions. |
Geotimes September 2004 Naomi Lubick |
Lucy Jones: The Calm After the Quake Now a leading earthquake scientist, Lucy Jones is the voice of seismology for Southern California, and her new position as chair of the California Seismic Safety Commission has the potential to pump up the volume of her message. |
Geotimes September 2004 Megan Sever |
Quake strikes Central California The U.S. Geological Survey received more than 9,000 reports from people who felt the quake, from Sacramento to Los Angeles. |
Geotimes December 2006 Kathryn Hansen |
Lab Experiment Reveals Earthquake Ruptures Not all earthquakes are created equal, according to new research that has brought earthquakes into the lab. For the first time, researchers physically observed two types of earthquake growth patterns, which until now, were limited to the realm of theory. |
Geotimes October 2006 Carolyn Gramling |
Strong Earthquake Shakes up Hawaii A magnitude-6.7 earthquake rumbled through the island chain of Hawaii, originating near Hawaii island, known as the "Big Island," according to the USGS. An aftershock with a magnitude of 6.0 followed seven minutes later. |
Geotimes March 2007 Kathryn Hansen |
Deadly Quake Shakes Sumatra A shallow, magnitude-6.4 temblor shook Sumatra, killing at least 70 people. |
Geotimes August 2004 Sara Pratt |
Pressure Shifts in Yellowstone The 2002 rupture of Alaska's Denali fault triggered more than 250 smaller-magnitude quakes, altering the eruption behavior of many of the park's famed geysers. |