Current Earthquakes News and Events | Page 25

Current Earthquakes News and Events, Earthquakes News Articles.
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Scientists return from first ever riser drilling operations in seismogenic zone
The deep-sea drilling vessel CHIKYU successfully completed riser drilling operations on August 31, for IODP Expedition 319, Stage 2, of the Nankai Trough Seismogenic Zone Experiment. The CHIKYU is operated by the Japan Agency for Marine-Earth Science and Technology in partnership with the Integrated Ocean Drilling Program. Expedition 319 marks the first riser drilling in the history of the scientific ocean drilling program, and the first subseafloor observatory operations for NanTroSEIZE. (2009-09-04)

Study reveals seismic shift in methods used to track earthquakes
Scientists have developed a new technique to monitor movements beneath the Earth's surface, helping them better understand how earthquakes behave. (2009-09-02)

New design keeps buildings standing and habitable after major earthquakes
A new earthquake-resistant structural system for buildings, just successfully tested in Japan, will not only help a multi-story building hold itself together during a violent earthquake, but also return it to standing up straight on its foundation afterward, true and plumb, with damage confined to a few easily replaceable parts. During testing on a massive shake table, the system survived simulated earthquakes bigger than either the 1994 Northridge earthquake or the 1989 Loma Prieta earthquake. (2009-09-01)

Central Mississippi River Valley 'wasn't always so placid and dull'
This new volume from the Geological Society of America presents the geologic history of the central Mississippi River Valley and the surrounding area from Precambrian through Holocene times. Its focal point is the New Madrid seismic zone that both threatens and intrigues. Written to engage a wide range of geologists, from beginners to those thinking of conducting research in the Mississippi River Valley, the book's conversational style makes it a pleasure to read. (2009-08-31)

Slowly slip-sliding faults don't cause earthquakes
Some slow-moving faults may help protect against destructive earthquakes, suggests new research. Until now, geologists thought when the crack between two pieces of the Earth's crust was at a very gentle slope, there was no movement along that particular fault line. Now two University of Arizona geoscientists have found that such a low-angle normal fault in Italy is moving slowly and steadily. (2009-08-27)

NTU and Temasek Foundation transfer technology knowhow to China's quake-prone regions
Singapore's Nanyang Technological University and Temasek Foundation are working together to bring earthquake resistance technology to regions in the People's Republic of China which are prone to earthquakes. Tapping NTU's expertise in earthquake engineering and seismic-resistant construction technologies, the program aims to promote safer construction practices, achieve transfer of technology, and enhance the skills of those involved in China construction industry. (2009-08-27)

Listening to rocks helps researchers better understand earthquakes
Using a technique called (2009-08-17)

Ocean-drilling expedition cites new evidence related to origin and evolution of seismogenic faults
New research about what triggers earthquakes, authored by Michael Strasser of Bremen University, Germany, with colleagues from the US, Japan, China, France and Germany, will appear in the Aug. 16, 2009, issue of Nature Geoscience (online version). The research article, titled (2009-08-17)

Seismology tip sheet
Periodicity of earthquakes in Western US, mineral deposits offer seismic record, San Andreas/Mission Creek fault zone detailed and more articles are in the August issue of the Bulletin of the Seismological Society of America. (2009-08-06)

Shaking the Earth: Just add water
New Zealand is the site of one of the world's youngest subduction zones, where the Pacific Plate of Earth's crust dives beneath the Australian Plate. Now, a University of Utah study shows how water deep underground helps the subduction zone mature and paves the way for it to generate powerful earthquakes. (2009-08-05)

Researchers report successful riser-drilling operations in seismogenic zone
For the first time in the history of scientific ocean drilling, the Integrated Ocean Drilling Program conducted operations using the riser capabilities of the Japan-sponsored research vessel, CHIKYU, to successfully drill down to a depth of 1,603.7 meters beneath the sea floor (at water depth of 2,054 meters), in an earthquake-generating zone. (2009-07-30)

Shake, rattle, no roll: Construction guide for earthquake-resistant buildings
A guide for designing buildings using steel moment frames to resist earthquakes has been published by NIST as part of its support for the National Earthquake Hazards Reduction Program. (2009-07-29)

'Invisibility cloak' could protect against earthquakes
Research at the University of Liverpool has shown it is possible to develop an (2009-07-20)

Pacific tsunami threat greater than expected
The potential for a huge Pacific Ocean tsunami on the West Coast of America may be greater than previously thought, according to a new study of geological evidence along the Gulf of Alaska coast. (2009-07-20)

Tremors on southern San Andreas Fault may mean increased earthquake risk
Tremors under the Parkfield segment of the San Andreas Fault have increased with increasing stress on a nearby locked segment of the fault, perhaps signaling a greater chance of an earthquake. The tremors, like a constant, low-level rumble, increased after quakes in 2003 and 2004, and are at the end of a segment that last ruptured in 1857 in a 7.8 magnitude quake. (2009-07-09)

Rensselaer researchers to participate in seismic test of 7-story building
Rensselaer Associate Professor Michael Symans and incoming Dean of Engineering David Rosowsky are among the team of researchers who will converge in Japan next week to perform the largest earthquake simulation ever attempted on a wooden structure. The multi-university team has placed a seven-story building on the world's largest shake table and will expose it to the force of an earthquake that hits only once every 2,500 years. (2009-07-09)

Post-traumatic stress disorder: Psychological treatments may not prevent PTSD
Psychological interventions intended to prevent the development of post-traumatic stress disorder in the early stages after a traumatic experience have not been shown to be effective, Cochrane researchers have concluded. This systematic review focused on multiple-session treatments for everyone involved, irrespective of the presence of symptoms. Two previous reviews found single session interventions to be ineffective. (2009-07-07)

China environmental phenomena monitored from space
China is in a very seismically active area and has had many catastrophic earthquakes during its history. A joint European-Chinese team is using satellite radar data to monitor ground deformation across major continental faults in China to understand better the seismic cycle and how faults behave. (2009-07-03)

Natural deep earth pump fuels earthquakes and ore
For the first time scientists have discovered the presence of a natural deep earth pump that is a crucial element in the formation of ore deposits and earthquakes. (2009-06-18)

Surprise: Typhoons trigger slow earthquakes
Scientists have made the surprising finding that typhoons trigger slow earthquakes, at least in eastern Taiwan. Slow earthquakes are non-violent fault slippage events that take hours or days instead of a few brutal seconds to minutes to release their potent energy. The researchers discuss their data in a study published the June 11 issue of Nature. (2009-06-10)

Predicted ground motions for great earthquake in Pacific Northwest: Seattle, Victoria and Vancouver
A new study evaluates expected ground motion in Seattle, Victoria and Vancouver from earthquakes of magnitude 7.5 - 9.0, providing engineers and policymakers with a new tool to build or retrofit structures to withstand seismic waves from large (2009-06-10)

UT Knoxville-led team starts first-ever Tennessee Valley earthquake survey
A new research project at the University of Tennessee, Knoxville, funded by the Nuclear Regulatory Commission will provide the first-ever record of seismic activity in the Tennessee Valley, providing not only new information on past quakes but insight into future activity. Led by Robert Hatcher, a team will explore sites from just north of Knoxville, Tenn., to just north of Rome, Ga. The area, known as the East Tennessee Seismic Zone, is the second most seismically active area in the eastern US. (2009-06-03)

A hidden drip, drip, drip beneath Earth's surface
There are very few places in the world where dynamic activity taking place beneath Earth's surface goes undetected. (2009-05-26)

BSSA special issue on rotational seismology
A special May issue of the Bulletin of the Seismological Society of America focuses on the emerging field of rotational seismology and its applications to engineering. The special issue will feature seismological research on all aspects of rotational ground motions (including theory, instrumentation, observation and interpretation) and on rotations in structural response. (2009-04-27)

Fingerprinting slow earthquakes
The most powerful earthquakes happen at the junction of two converging tectonic plates, where one plate is sliding (or subducting) beneath the other. Now a team of researchers, led by Teh-Ru Alex Song of the Carnegie Institution, has found that an anomalous layer at the top of a subducting plate coincides with the locations of slow earthquakes and nonvolcanic tremors. Such a layer in similar settings elsewhere could point to other regions of slow quakes. (2009-04-23)

1-story masonry building survives strong jolts during UC San Diego seismic tests
A one-story masonry structure survived two days of intense earthquake jolts after engineering researchers at the University of California, San Diego, put it to the test. (2009-04-14)

How do they spread?
Propagation of earthquake waves within the Earth is not uniform. Experiments indicate that the velocity of shear waves in Earth's lower mantle between 660 and 2900 km depth is strongly dependent on the orientation of ferropericlase. (2009-04-10)

CSI: Pisco, Peru
In a study published in the Geophysical Journal International, scientists from the University of Miami's Rosenstiel School of Marine and Atmospheric Science, in collaboration with scientists from the University of Oxford have analyzed data on this earthquake and its impact on regional topography. Using InSAR-based geodetic data and teleseismic data, the scientists were able to use satellite images to identify details of this major plate boundary event. (2009-04-10)

The impact of 1989 Loma Prieta Earthquake -- 20 years later
The Loma Prieta earthquake transformed the earthquake sciences and engineering and remains a major focus of study, some twenty years later. The October 17, 1989, magnitude 6.9 Loma Prieta earthquake severely shook the San Francisco and Monterey Bay regions and initiated major changes in earthquake science and engineering, disaster response and public policy well beyond California. (2009-04-09)

Monitoring Yellowstone earthquake swarms
Analysis of the recent swarm suggests epicenters migrated north over the 12-day period and maximum hypocenter depths abruptly shallowed from 12 km to 3 km depth at the time of rapid cessation of activity on Jan. 7. (2009-04-09)

Solomon Islands earthquake sheds light on enhanced tsunami risk
The 2007 Solomon Island earthquake may point to previously unknown increased earthquake and tsunami risks because of the unusual tectonic plate geography and the sudden change in direction of the earthquake, according to geoscientists. (2009-04-09)

California's central coast earthquake hazards: New information about recently identified faults
Seismologists are re-evaluating the earthquake potential of the Central Coast, a very complex tectonic region located west of the San Andreas Fault, between Monterey Bay and the Western Transverse Ranges. This area of increasing population growth ranks as one of the top 40 US metropolitan areas with significant earthquake risk. (2009-04-09)

Understanding risk to Seattle's high-rise buildings from a giant Cascadian earthquake
What is the risk to high-rise buildings in Seattle from a giant earthquake? (2009-04-09)

Bent tectonics: How Hawaii was bumped off
Volcanoes and islands are dotted along the Hawaii-Emperor seamount chain like pearls on a necklace. The sharp bend in the middle of this formation is due to a migrating hotspot, a submerged volcano that produced the Hawaii-Emperor chain millions of years ago. (2009-04-03)

Seismology tip sheet for April
Linking prehistoric seismic events on the San Andreas Fault; evidence for great tsunamigenic quakes along Mexican Coast; and icequakes and glacier flow are among the topics featured in the April issue of the Bulletin of the Seismological Society of America. (2009-04-01)

New Madrid fault system may be shutting down
The New Madrid fault system does not behave as earthquake hazard models assume and may be in the process of shutting down, a new study shows. (2009-03-13)

Seismological Society of America honors Coloradan David Wald for public service
Throughout his career, David Wald, Ph.D, has expanded the reach and application of seismic data through development of widely-used programs such as ShakeMap and (2009-03-12)

An angry heart can lead to sudden death, Yale researchers find
Before flying off the handle the next time someone cuts you off in traffic, consider the latest research from Yale School of Medicine researchers that links changes brought on by anger or other strong emotions to future arrhythmias and sudden cardiac arrests, which are blamed for 400,000 deaths annually. (2009-02-24)

The Earth Observatory of Singapore devoted to the study of earth sciences officially opens
Led by former Caltech professor Kerry Sieh, the Earth Observatory of Singapore, aspires to be a leading world institution for understanding and addressing several of civilization's most serious environmental threats -- including earthquakes, tsunamis, volcanic eruptions and climate change. Joining Professor Sieh at EOS are Paul Taponnier of the Institut de Physique du Globe de Paris and Chris Newhall, formerly of the US Geological Survey. (2009-02-19)

Padgett in National Engineers Week spotlight
Rice University Assistant Professor Jamie Padgett has been chosen as one of just 14 people from industry, government and academia to represent the best and brightest (2009-02-16)

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