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Diamond discovery under pressure

Wed, 07 Mar 18 00:15:30 -0800

For the first time, scientists have found Earth's fourth most abundant mineral -- calcium silicate perovskite -- at Earth's surface.

Geophysicists and atmospheric scientists partner to track typhoons' seismic footprints

Thu, 15 Feb 18 00:06:10 -0800

A remarkable collaboration between atmospheric science and geophysics could change the way we think about storms and seismicity, and could lead to an answer to the often-asked 'Are hurricanes getting stronger?' Princeton University's Lucia Gualtieri and Salvatore Pascale led an international team that has identified the seismic footprint of typhoons and hurricanes, which allows climate scientists to add decades to their dataset of powerful storms.

Modeling the effects of wastewater injection

Wed, 20 Dec 17 00:04:30 -0800

Combining computer modeling, fracture mechanics theory, and real-world observations, scientists create a model for the maximum magnitude of an earthquake that can be caused through wastewater injection.

Geophysicists uncover new evidence for an alternative style of plate tectonics

Tue, 28 Nov 17 00:02:50 -0800

Scientists have determined that a volcano and mountain plateau across Turkey formed not by the collision of tectonic plates, but by a massive detachment of plate material beneath Earth's surface. They propose that uplift of the Central Anatolian Plateau over 10 million years was caused by a dripping of the deep lithosphere. It first formed an aboveground basin which sprang up when the weight below broke off and sank into the depths of the mantle.

Imaging technique unlocks the secrets of 17th century artists

Tue, 21 Nov 17 00:06:20 -0800

The secrets of 17th century artists can now be revealed, thanks to 21st century signal processing. Using modern high-speed scanners and the advanced signal processing techniques, researchers at the Georgia Institute of Technology are peering through layers of pigment to see how painters prepared their canvasses, applied undercoats, and built up layer upon layer of paint to produce their masterpieces.

Do earthquakes have a 'tell'?

Thu, 05 Oct 17 00:00:30 -0700

Northwestern University data scientists and seismologists could potentially forecast strong earthquakes through algorithms designed to detect and monitor 'deep tremor.'

OU team details foreshock activities leading up to Pawnee earthquake

Wed, 12 Jul 17 00:05:20 -0700

A University of Oklahoma geophysics professor, Xiaowei Chen, details the foreshock activities leading up to the Pawnee earthquake, and highlights the complicated relationship between seismicity and wastewater injection rates in a research study published this week in Scientific Reports. The study details the precursory earthquake (foreshock) sequences that culminated in the September 3, 2016, 5.8 magnitude earthquake near Pawnee, Okla., which ruptured along the previously unmapped Sooner Lake Fault.

Forgotten archives reveal street-level impact of 1918 Puerto Rico earthquake and tsunami

Tue, 04 Jul 17 00:16:10 -0700

Repair petitions filed in the wake of the 1918 Puerto Rico earthquake and tsunami, stored and forgotten in the San Juan archives for nearly 100 years, are giving scientists a house-by-house look at the damage wrought by the magnitude 7.3 event.

'Bulges' in volcanoes could be used to predict eruptions

Wed, 28 Jun 17 00:00:20 -0700

A team of researchers from the University of Cambridge have developed a new way of measuring the pressure inside volcanoes, and found that it can be a reliable indicator of future eruptions.

Using body noise to improve cancer detection

Sun, 25 Jun 17 00:14:50 -0700

In passive elastography, the elasticity of tissue is measured using the body's own propagation of shear waves, which enables more effective imaging deeper inside the body in an even more noninvasive way than traditional elastography and may be used for cancer detection. Stefan Catheline, researcher at the University at Lyon will discuss this and other elastography advances during Acoustics '17 Boston.

Earthquakes can make thrust faults open violently and snap shut

Mon, 01 May 17 00:00:10 -0700

Engineers and scientists experimentally observe surface twisting in thrust faults that can momentarily rip open the earth's surface.

Understanding predictability and randomness by digging in the dirt

Tue, 28 Mar 17 00:16:30 -0700

When tilling soil, the blade of the tool cuts through dirt, loosening it in preparation for seeding. The dirt granules are pushed aside in a way that looks random -- but might not be. Now, researchers have found a way to distinguish whether such a process is truly random, or is actually deterministic -- which can lead to deeper understanding and the ability to control the process. They describe the analysis in the journal Chaos.

A seismic mapping milestone

Tue, 28 Mar 17 00:00:00 -0700

Using advanced modeling and simulation, seismic data generated by earthquakes, and one of the world's fastest supercomputers, a team led by Jeroen Tromp of Princeton University is creating a detailed 3-D picture of Earth's interior. Currently, the team is focused on imaging the entire globe from the surface to the core-mantle boundary, a depth of 1,800 miles.

Anne Meltzer of Lehigh University named Fellow of American Geophysical Union

Tue, 21 Feb 17 00:05:10 -0800

Anne S. Meltzer, a seismologist who studies the structure and evolution of Earth's crust and upper mantle, joined a select group of earth scientists recently when she received the American Geophysical Union's (AGU) 2016 Ambassador Award and was made a Fellow of the AGU. The AGU, an organization of earth and space scientists, has more than 62,000 members in 144 countries.

International science collaboration growing at astonishing rate

Fri, 17 Feb 17 00:15:40 -0800

Even those who follow science may be surprised by how quickly international collaboration in scientific studies is growing, according to new research. The number of multiple-author scientific papers with collaborators from more than one country more than doubled from 1990 to 2015, from 10 to 25 percent, one study found. And 58 more countries participated in international research in 2015 than did so in 1990.

Older than the moon

Mon, 06 Feb 17 00:05:00 -0800

Geochemist Matt Jackson finds that only the hottest, most buoyant mantle plumes draw from a primordial reservoir deep in the Earth.

European Geosciences Union meeting: Media registration now open

Wed, 14 Dec 16 00:07:00 -0800

The 2017 General Assembly of the European Geosciences Union (EGU) provides an opportunity for journalists to hear about the latest research in the Earth, planetary and space sciences, and to talk to scientists from all over the world. The meeting, the largest geosciences conference in Europe, brings together over 12,000 researchers, and is taking place in Vienna, Austria, from 23 to 28 April.

Quake-detection app captured nearly 400 temblors worldwide

Wed, 14 Dec 16 00:00:10 -0800

A crowdsourced earthquake network using Android phones and the MyShake app has since February 2016 detected nearly 400 temblors worldwide, with one of the most active areas of the world the oil-drilling areas of Oklahoma. The app, downloaded almost 220,000 times, has sent back seismic waveform data that allows quite accurate assessment of magnitude and location, suitable for early warming: one of the main goals of the project.

SLU geologists discover how a tectonic plate sank

Mon, 14 Nov 16 00:03:00 -0800

Saint Louis University researchers report new information about conditions that can cause the Earth's tectonic plates to sink into the Earth.

After the quake -- data can help predict consequences of the next event

Fri, 22 Jul 16 00:10:50 -0700

Seismology geophysicist Steve Roecker is using a network of broadband seismometers to learn more about the complex overlap between tectonic plates that causes an 8.3 magnitude earthquake near Illapel, Chile in 2015.

Tide-triggered tremors give clues for earthquake prediction

Thu, 21 Jul 16 00:07:30 -0700

The triggering of small, deep earthquakes along California's San Andreas Fault reveals depth-dependent frictional behavior that may provide insight into patterns signaling when a major quake could be on the horizon, according to a paper released this week by the Proceedings of the National Academy of Sciences.

Understanding tsunamis with EM fields

Wed, 06 Jul 16 00:05:40 -0700

New research shows that important focal parameters of tsunamigenic earthquakes -- particularly fault dip direction -- can be extracted from tsunami-borne electromagnetic fields. Such details may contribute to tsunami early warning systems that are more informative for residents of coastal areas.

Constrain the composition of Earth's interior with elasticity of minerals

Tue, 07 Jun 16 00:05:40 -0700

The new method, which reduces the computational loads to one-tenth of the traditional method, has been used to calculate the elastic data of many minerals with the comparable precise as those on the basis of the traditional method. These elastic data are crucial in constraining the composition and temperature of the Earth's interior. The relevant advances have been reviewed by Wu and Wang in a paper published in SCIENCE CHINA Earth Sciences.

Polar weather and climate week

Mon, 06 Jun 16 00:12:00 -0700

Nearly 80 prominent atmospheric scientists, representing 18 countries from around the world, are attending a week of workshops and meetings at The Ohio State University to discuss the latest scientific developments regarding Antarctic and Arctic meteorology and climate change.

Diego Melgar Moctezuma honored with Charles F. Richter Early Career Award

Tue, 24 May 16 00:01:40 -0700

Early in his career, seismologist Diego Melgar Moctezuma has already made significant research contributions in the areas of earthquake rupture and early warning, tsunami modeling, and community outreach regarding earthquakes and geosciences.

Seismologist Michael E. Wysession honored for contributions to geosciences education

Tue, 24 May 16 00:02:10 -0700

For his exceptional leadership in geosciences education and his devotion to public understanding of earthquakes and their impact on society, the Seismological Society of America will present Michael E. Wysession with the 2016 Frank Press Public Service Award at its annual meeting held 18-20 April 2017 in Denver, Colorado.

BSSA Editor-in-Chief Diane Doser honored with SSA Distinguished Service Award

Tue, 24 May 16 00:01:30 -0700

For her two decades of outstanding dedication and leadership of the Bulletin of the Seismological Society of America, the Seismological Society of America will present Diane I. Doser with its 2016 Distinguished Service Award.

Lev P. Vinnik wins top honor in seismology

Tue, 24 May 16 00:02:00 -0700

Seismological Society of America will present its highest honor, the 2016 Harry Fielding Reid Medal, to Lev P. Vinnik, Professor at the Institute of Physics of the Earth of the Russian Academy of Sciences, at its annual meeting 18-20 April 2017 in Denver, Colorado.

Japanese-language MyShake app crowdsources earthquake shaking

Sat, 21 May 16 00:14:10 -0700

UC Berkeley scientists are releasing a Japanese version of an Android app that crowdsources ground-shaking information from smartphones to detect quakes and eventually warn users of impending jolts from nearby quakes.

Citizen seismologists multiply the impacts of earthquake studies

Fri, 22 Apr 16 00:11:30 -0700

From matchbook-sized sensors plugged into a desktop computer to location-tagged tweets, the earthquake data provided by 'citizen seismologists' have grown in size and quality since 2000, according to the field's researchers.

Seismologists ask: How close are we to an eruption?

Wed, 20 Apr 16 00:12:00 -0700

Scientists analyzing the data from seismic networks are becoming better at detecting volcanic activity and at depicting the source and structure of the 'plumbing' beneath the world's volcanoes. But a critical question remains: Can these data help predict when a volcano is close to erupting?

Earth's internal heat drives rapid ice flow and subglacial melting in Greenland

Mon, 04 Apr 16 00:14:20 -0700

Greenland's lithosphere has hot depths which originate in its distant geological past and cause Greenland's ice to rapidly flow and melt from below.

Gravity glasses offer a view of the Earth's interior

Mon, 14 Mar 16 00:01:20 -0700

How does the ice on the polar caps change? And which are the geological characteristics of the Earth's crust beneath? Geophysicists will be able to answer these questions in the future using gravity field measurements from ESA's GOCE gravity satellite. Geodesists from the Technical University of Munich have prepared the measurement data mathematically in such a way that they can be used to resolve structures deep below the surface.

Invigorating Japanese energy and environmental policy five years after Fukushima

Wed, 02 Mar 16 00:04:20 -0800

Japanese researchers call for increased interdisciplinarity and internationalization in Japanese energy and environment research to provide effective scientific advice and invigorate Japanese energy and environmental policy five years after Fukushima.

New app turns smartphones into worldwide seismic network

Fri, 12 Feb 16 00:16:20 -0800

Sensor networks to detect earthquakes are expensive, and many nations have only rudimentary seismic networks. UC Berkeley seismologists, with the help of Deutsche Telekom, have developed an app that turns smartphones into sensors to collect ground shaking data for study, and eventually to provide early warning to users. The app, called MyShake, is available Feb. 12 from the Google Play Store. Its greatest value may be in countries without a traditional seismic network.

Protect your Chicago water heater against earthquakes? There's a better bet

Tue, 09 Feb 16 00:03:30 -0800

Chicago homeowners, take note: you'll get a better return on your investment if you buy a lottery ticket when the jackpot is high, rather than pay to secure your water heater against earthquake damage.

Researchers find new cause of strong earthquakes

Mon, 08 Feb 16 00:04:40 -0800

A geologic event known as diking can cause strong earthquakes -- with a magnitude between 6 and 7, according to an international research team.

Double dose of bad earthquake news

Mon, 08 Feb 16 00:12:40 -0800

A team of researchers, including one from the University of California, Riverside, has discovered that earthquake ruptures can jump much further than previously thought, a finding that could have severe implications on the Los Angeles area and other regions in the world.

Galaxy quakes could improve hunt for dark matter

Thu, 07 Jan 16 00:10:10 -0800

A trio of brightly pulsating stars at the outskirts of the Milky Way is racing away from the galaxy and may confirm a method for detecting dwarf galaxies dominated by dark matter and explain ripples in the outer disk of the galaxy.

Roger D. Borcherdt wins the 2016 Bruce A. Bolt Medal

Wed, 30 Dec 15 00:13:00 -0800

Roger D. Borcherdt, scientist emeritus at the US Geological Survey and past Shimizu Visting Professor and consulting professor at Stanford University, is the 2016 recipient of the Bruce A. Bolt Medal. The annual award is presented jointly by the Consortium of Strong Motion Observations Systems, Earthquake Engineering Research Institute, and the Seismological Society of America.

Forensic seismology tested on 2006 munitions depot 'cook-off' in Baghdad

Tue, 22 Dec 15 00:10:00 -0800

Curious seismologists who looked at the recordings made by a seismic station four miles away from the 'cook-off' of an ammunition holding area in Iraq in 2006 found they could distinguish, mortars, rockets, improvised explosive devices, helicopters and drones. Seismology is increasingly being used for investigative purposes, they said, not just to detect earthquakes.

New model more accurately tracks gases for underground nuclear explosion detection

Thu, 17 Dec 15 00:01:50 -0800

Scientists at Los Alamos National Laboratory have developed a new, more thorough method for detecting underground nuclear explosions (UNEs) by coupling two fundamental elements -- seismic models with gas-flow models--to create a more complete picture of how an explosion's evidence (radionuclide gases) seep to the surface. Their findings will appear in today's edition of the journal Nature's Scientific Reports in a paper titled, 'Radionuclide Gas Transport through Nuclear Explosion-Generated Fracture Networks.'

Seismologist Walter J. Arabasz honored for contributions to earthquake safety

Mon, 07 Dec 15 00:13:10 -0800

For his extraordinary public service in modernizing, expanding and promoting seismic monitoring for public safety in the United States, the Seismological Society of America (SSA) will present Walter J. Arabasz with the Frank Press Public Service Award at its annual meeting held 20-22 April 2016 in Reno, Nevada.

Stanford scientists develop 'Shazam for earthquakes'

Fri, 04 Dec 15 00:14:00 -0800

A new algorithm designed to find matching seismic signals in large earthquake databases could find previously missed microquakes.

The Sun could release flares 1000x greater than previously recorded

Wed, 02 Dec 15 00:07:30 -0800

The Sun demonstrates the potential to superflare, new research into stellar flaring suggests. Led by the University of Warwick, the research has found a stellar superflare on a star observed by NASA's Kepler space telescope with wave patterns similar to those that have been observed in solar flares. Superflares are thousands of times more powerful than those ever recorded on the Sun, and are frequently observed on some stars.

Christopher H. Scholz wins top honor in seismology

Mon, 23 Nov 15 00:10:50 -0800

The Seismological Society of America will present its highest honor, the Harry Fielding Reid Medal, to Christopher H. Scholz, Professor of Earth and Environmental Sciences and of Applied Physics and Applied Mathematics at Columbia University and Lamont-Doherty Earth Observatory, at its annual meeting April 20-22 in Reno, Nevada.

UH professor wins Karcher Award for work in characterization of fractured reservoirs

Tue, 17 Nov 15 00:01:40 -0800

Yingcai Zheng, an assistant professor in the University of Houston's Department of Earth and Atmospheric Sciences, recently was honored as a recipient of the 2015 J. Clarence Karcher Award from the Society of Exploration Geophysicists. Zheng earned the honor for his work in the characterization of fractured reservoirs.

Queen's University Belfast lead research milestone in predicting solar flares

Mon, 16 Nov 15 00:01:40 -0800

An international team of researchers, led by Queen's University Belfast, has devised a high-precision method of examining magnetic fields in the sun's atmosphere, representing a significant leap forward in the investigation of solar flares and potentially catastrophic 'space weather.'

Magnetic hide and seek

Thu, 22 Oct 15 00:05:10 -0700

Researchers at the Kavli Institute for Theoretical Physics have developed a new technique to detect magnetic fields inside stars.

Medical diagnosis: Will brain palpation soon be possible?

Wed, 07 Oct 15 00:10:10 -0700

By drawing on seismology, Inserm researchers led by Stéfan Catheline have just developed a noninvasive brain imaging method using MRI that provides the same information as physical palpation.