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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 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 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 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 |
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 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. |
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 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 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 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 May 2006 Naomi Lubick |
Measuring the Sumatra Quake The motions on the fault that set off the Dec. 26, 2004, earthquake that sent a tsunami across the Indian Ocean continue to puzzle seismologists. |
Geotimes August 2006 Megan Sever |
Faster Tsunami Warnings with GPS Time is of the essence when a giant earthquake strikes, especially underwater. Now, a team of researchers says that they have found a new way -- using GPS -- to more quickly determine if the quake is large enough to produce an ocean-wide tsunami. |
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 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 April 2006 Kathryn Hansen |
Deep Sediments, Strong Quakes The surprising strength of the earthquake that triggered the 2004 Sumatran tsunami urged seismologists to discover triggers that lead up to these events. New models show responsibility may rest on sediments than can collect kilometers deep at the junctions of tectonic plates. |
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 May 2004 Naomi Lubick |
New New Madrid Findings New research has moved a historical earthquake off the New Madrid faults, possibly changing the hazard conditions for the region and across the eastern United States. |
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 December 2005 |
Highlights 2005 -- Natural Hazards Drilling a fault... Mount St. Helens awakens... Reviewing Sumatra... SAFOD crosses the fault... |
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. |
Popular Mechanics October 5, 2009 Amber Angelle |
Earthquake Research Digs Deep to Find Timely Warning System Right now, the best that seismologists can do to "predict" earthquakes is to send out a warning immediately after activity is detected. |
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 2006 Megan Sever |
Plate Shifts in the Pacific Northwest The far northern section of the Sumatra-style subduction zone in the Pacific Northwest could be transforming into more of a San Andreas-style seismic zone, according to new research. This geologic reorganization could have implications for the region's earthquake risk. |
Insurance & Technology April 5, 2010 Anthony O'Donnell |
Recent Natural Catastrophes Should Alert U.S. Insurers to Dangers Experience with seismic events mitigated the human and property toll of the February Chile earthquake -- lessons that should inform insurers' planning in parts of the U.S. |
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. |
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 February 2004 Naomi Lubick |
Triggering Tsunamis A controversy over whether an earthquake or an underwater landslide generated the 1998 Papua New Guinea tsunami rekindled interest in such events; it also drew geologists into a field that had been dominated by modelers and seismologists. |
Geotimes December 2005 David Applegate |
A Year of Living Dangerously Recent destructive events are reminders of our society's growing vulnerability to natural disasters as more people move into harm's way. Scientists seeking to understand the underlying geologic systems have an obligation to learn more. |
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. |
BusinessWeek March 17, 2011 Jonathan Tirone |
Searching for Clues Along the Ring of Fire Japan's earthquake will generate aftershocks for years, producing data that may yield insights about the quake-prone Pacific Rim. |
AskMen.com Bernie Alexander |
Tsunamis: Waves Of Destruction Understanding the tsunami: definition, origins, history, warning signs, etc. |
Geotimes July 2006 Jennifer Yauck |
Quake Triggers Deadly Tsunami Off Java A major undersea earthquake occurred south of Indonesia, triggering a local tsunami that hit the island of Java. At least 80 people are dead after a 6-foot-high wave crashed ashore on the island's southern coast. |
Geotimes November 2006 Megan Sever |
Earthquakes, Tsunamis Strike Japan A magnitude-8.3 earthquake struck off the Kuril Islands between Japan and Russia, followed by a series of strong aftershocks, at least four of which were above magnitude 6.0, according to the USGS. |
Popular Mechanics February 15, 2009 Karen Rowan |
Predicting Earthquakes: Scientists Use Satellites and Drills to Follow a Force of Nature The awesome energy unleashed by earthquakes is something geologists still struggle to understand. To gather information on how the Earth moves, scientists use drills and GPS satellites. |
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. |
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 December 2004 Megan Sever |
Devastation in the Indian Ocean A magnitude-9.0 earthquake struck off the coast of Sumatra, Indonesia, on Sunday morning, followed by dozens of powerful aftershocks and large tsunamis that reached as far as the east coast of Africa, some 4,800 kilometers away. |
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 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. |
Scientific American March 2005 Madhusree Mukerjee |
The Scarred Earth Tsunami-spawning quake leaves geophysical changes. |
Geotimes May 2005 David Applegate |
Lessons From Sumatra In the months following the December 26, 2004 earthquake and tsunami U.S. Geological Survey (USGS) scientists and their colleagues around the world have been working hard to learn from the tragedy so that such loss of life does not happen again. |
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 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 August 2005 |
Drilling project finds fault A drill rig in California is being used to research the San Andreas fault. |
Geotimes August 2005 Naomi Lubick |
Sumatra Tsunami Fault Photographed Oceanographers took the first close-up photographs of one of the remaining fault scarps: a cliff face that is one in a pair of parallel faults that created a kind of canyon just off the continental shelf of Sumatra. |
Geotimes March 2007 Kathryn Hansen |
Deadly Quake Shakes Sumatra A shallow, magnitude-6.4 temblor shook Sumatra, killing at least 70 people. |
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 September 2005 Naomi Lubick |
Repositioning Tokyo's Fault Seismologists now think Tokyo's fault sits closer to Earth's surface than previously thought. If the fault is indeed shallower, the new assessment has the potential to revise the projected hazards Tokyo may face in the future. |
Geotimes March 2006 Kathryn Hansen |
Earthquake Jostles Iran After an evening of precursory tremors, a magnitude-6.1 earthquake struck western Iran today. |