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Preview: Brightsurf Science News :: Earthquake News

Earthquake Current Events and Earthquake News from Brightsurf

Earthquake Current Events and Earthquake News Events, Discoveries and Articles from Brightsurf

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Portable device to sniff out trapped humans

Wed, 18 Apr 18 00:03:40 -0700

The first step after buildings collapse from an earthquake, bombing or other disaster is to rescue people who could be trapped in the rubble. But finding entrapped humans among the ruins can be challenging. Scientists now report in the ACS journal Analytical Chemistry the development of an inexpensive, selective sensor that is light and portable enough for first responders to hold in their hands or for drones to carry on a search for survivors.

Researchers design 'soft' robots that can move on their own

Wed, 18 Apr 18 00:09:30 -0700

If Star Wars' R2-D2 is your idea of a robot, think again. Researchers led by a University of Houston engineer have reported a new class of soft robot, composed of ultrathin sensing, actuating electronics and temperature-sensitive artificial muscle that can adapt to the environment and crawl, similar to the movement of an inchworm or caterpillar.

Can your dog predict an earthquake? Evidence is shaky, say researchers

Tue, 17 Apr 18 00:15:30 -0700

For centuries people have claimed that strange behavior by their cats, dogs and even cows can predict an imminent earthquake, but the first rigorous analysis of the phenomenon concludes that there is no strong evidence behind the claim.

Tsunamis could cause beach tourism to lose hundreds of millions of dollars every year

Thu, 12 Apr 18 00:09:30 -0700

Going to the beach this summer? European tourists are more frequently going to places with significant tsunami risk, researchers have found. A global tourism destination risk index for tsunamis was released today at the 2018 Annual Conference of the European Geosciences Union in Vienna. It is based on a study led by Andreas Schaefer of Karlsruhe Institute of Technology (KIT) that examined all prominent tourism destinations globally with regard to the potential impact for businesses.

Shaking up megathrust earthquakes with slow slip and fluid drainage

Mon, 09 Apr 18 00:02:30 -0700

Megathrust earthquakes are the most powerful type of earthquake, occurring at subduction zones -- where one tectonic plate is pushed beneath another. By contrast, slow slip events (SSEs) release seismic stress at a lower rate than large earthquakes, re-occurring in cycles. These processes can take place along the megathrust and other planes of weakness in response to loading, releasing low frequency seismic waves. Researchers in Japan consider the fluid drainage processes that can occur from SSEs and their impact on seismic activity.

Aquaplaning in the geological underground

Mon, 02 Apr 18 00:04:10 -0700

Scientists propose a mechanism that explains how the biggest earthquake ever happened and how more than 50 years later another large earthquake in the same region released some of the stress that had built up in the depth. Water pressure in the underground plays a crucial role in both cases.

Modeling future earthquake and tsunami risk in southeast Japan

Mon, 02 Apr 18 00:06:50 -0700

Geoscience researchers at UMass Amherst, Smith College and the Japanese Agency for Marine-Earth Science and Technology unveil new, GPS-based methods for modeling earthquake-induced tsunamis for southeast Japan along the Nankai Trough. A Nankai-induced tsunami is likely to hit there in the next few decades, says lead author Hannah Baranes at UMass Amherst, and has the potential to displace four times the number of people affected by the massive Tohoku tsunami of 2011.

Sediment core from sluice pond contains evidence for 1755 New England earthquake

Tue, 27 Mar 18 00:07:40 -0700

Signs of a 1755 earthquake that was strong enough to topple steeples and chimneys in Boston can be seen in a sediment core drawn from eastern Massachusetts' Sluice Pond, according to a new report published in Seismological Research Letters.

Landslide modeling after Kaikoura Quake provides data to first responders

Mon, 26 Mar 18 00:07:50 -0700

Hours after the 2016 Kaikoura earthquake hit New Zealand, researchers were able to share information with first responders about where significant landsliding might have occurred to block roads and rivers, according to a new report in the Bulletin of the Seismological Society of America.

Seismologists introduce new measure of earthquake ruptures

Wed, 21 Mar 18 00:04:20 -0700

A team of seismologists has developed a new measurement of seismic energy release that can be applied to large earthquakes. Called the Radiated Energy Enhancement Factor (REEF), it provides a measure of earthquake rupture complexity that better captures variations in the amount and duration of slip along the fault for events that may have similar magnitudes.

Historians to climate researchers: Let's talk

Mon, 19 Mar 18 00:13:40 -0700

Ours is not the first society to be confronted by massive environmental change. Over the course of history, some societies have been destroyed by natural disasters, like Pompeii, while others have learned how to accommodate floods, droughts, volcanic eruptions and other natural hazards. The key is how a society plans for and interacts with the stress from nature, say Princeton University historians John Haldon and Lee Mordechai.

Mexico's 2017 earthquake emerged from a growing risk zone

Mon, 12 Mar 18 00:00:10 -0700

Under Mexico, where the Cocos Plate from the Pacific Ocean slides under the North American Plate, a bending line of hills, created when the seafloor first formed, sits atop a flattened area of subduction. That newly recognized combination, scientists report, has created a fault that likely explains last September's Puebla earthquake, scientists report.

Mothers need better safe infant feeding support post-disaster, UGA study finds

Thu, 01 Mar 18 00:09:50 -0800

A new study from the University of Georgia highlights the need for humanitarian aid groups to be trained in safe infant and young child feeding protocols, following the 2015 earthquake in Nepal, which killed nearly 9,000 people and damaged almost half a million homes.

Health staff 'too stressed' to deal with disasters

Mon, 26 Feb 18 00:04:40 -0800

Increasing stress and a lack of motivation among healthcare staff could result in hospitals having to shut down in the wake of a major incident such as flooding or an earthquake, according to new research published in the journal Procedia Engineering.

Earthquakes follow wastewater disposal patterns in southern Kansas

Mon, 19 Feb 18 00:09:20 -0800

Wastewater created during oil and gas production and disposed of by deep injection into underlying rock layers is the probable cause for a surge in earthquakes in southern Kansas since 2013, a new report in the Bulletin of the Seismological Society of America concludes.

Researchers have found a link between earthquakes and currency jumps

Thu, 15 Feb 18 00:15:20 -0800

Mathematicians at the Higher School of Economics have successfully demonstrated the use of a Japanese model which detects seismic activity in predicting currency risks. The research results have been published in an article entitled Hawkes Processes for Forecasting Currency Crashes: Evidence from Russia.

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.

Analysis of major earthquakes supports stress reduction assumptions

Wed, 14 Feb 18 00:08:00 -0800

A comprehensive analysis of 101 major earthquakes around the Pacific ring of fire between 1990 and 2016 shows that most of the aftershock activity occurred on the margins of the areas where the faults slipped a lot during the main earthquakes. The findings support the idea that the area of large slip during a major earthquake is unlikely to rupture again for a substantial time.

SMU study finds earthquakes continue for years after gas field wastewater injection stops

Tue, 13 Feb 18 00:08:40 -0800

Shutting down oil and gas wastewater injection wells may not stop human-induced earthquakes quickly, say seismologists at Southern Methodist University, Dallas. The scientists analyzed earthquakes at DFW Airport that began in 2008 and found that even though wastewater injection was halted after a year, earthquakes continued for at least seven more years. They concluded that high-volume injection, even for a short time, can induce long-lasting seismicity when it's near a critically stressed fault.

Acoustic imaging reveals hidden features of megathrust fault off Costa Rica

Mon, 12 Feb 18 00:03:10 -0800

Geophysicists have obtained detailed three-dimensional images of a dangerous megathrust fault west of Costa Rica where two plates of the Earth's crust collide. The images reveal features of the fault surface, including long grooves or corrugations, that may determine how the fault will slip in an earthquake.

Giant lava dome confirmed in Japan's Kikai Caldera

Fri, 09 Feb 18 00:01:00 -0800

Researchers have confirmed that a giant lava dome was created in the Kikai Caldera, south of Japan's main islands after the caldera-forming supereruption 7,300 years ago. The dome is in the world's largest class of post-caldera volcano, with a volume of over 32 cubic kilometers. It is possible that currently a giant magma buildup may exist under the Kikai Caldera.

New map profiles induced earthquake risk for West Texas

Thu, 08 Feb 18 00:11:00 -0800

A map created by Stanford geophysicists can help predict which parts of West Texas and New Mexico may be at risk of fracking-induced earthquakes. The map could guide oil discovery efforts in the region.

September 2017 earthquakes highlight successes of Mexico's early warning system

Tue, 06 Feb 18 00:04:00 -0800

Mexico's earthquake early warning system gave Mexico City's residents almost two minutes of warning prior to the arrival of strong seismic waves from the Sept. 7, 2017 Tehuantepec earthquake centered off the southern coast of Mexico, according to a report in the journal Seismological Research Letters.

Satellite-based earthquake early warning system tested against Chilean great quakes

Tue, 06 Feb 18 00:03:50 -0800

Researchers testing a satellite-based earthquake early warning system developed for the US West Coast found that the system performed well in a 'replay' of three large earthquakes that occurred in Chile between 2010 and 2015.

Wastewater injection depth important trigger for induced quakes

Thu, 01 Feb 18 00:05:00 -0800

A new study aiming to provide a better understanding of how injection wells in the US influence earthquake activity cites wastewater injection depth, not purely rate or volume, as a critical factor.

Oklahoma's earthquakes strongly linked to wastewater injection depth

Thu, 01 Feb 18 00:04:30 -0800

Man-made earthquakes in Oklahoma, USA, are strongly linked to the depth at which wastewater from the oil and gas industry are injected into the ground, according to a new study led by the University of Bristol.

Could underwater sound waves be the key to early tsunami warnings?

Wed, 24 Jan 18 00:06:20 -0800

Mathematicians have devised a way of calculating the size of a tsunami and its destructive force well in advance of it making landfall by measuring fast-moving underwater sound waves, opening up the possibility of a real-time early warning system.

Fox Creek earthquakes linked to completion volume and location of hydraulic fracturing

Thu, 18 Jan 18 00:08:40 -0800

The volume of hydraulic fracturing fluid and the location of well pads control the frequency and occurrence of measurable earthquakes, new Alberta Geological Survey and UAlberta research has found.

Rates of great earthquakes not affected by moon phases, day of year

Tue, 16 Jan 18 00:15:00 -0800

There is an enduring myth that large earthquakes tend to happen during certain phases of the Moon or at certain times during the year. But a new analysis published in Seismological Research Letters confirms that this bit of earthquake lore is incorrect.

Tracing how disaster impacts escalate will improve emergency responses

Thu, 11 Jan 18 00:08:10 -0800

Mapping common pathways along which the effects of natural and man-made disasters travel allows more flexible and resilient responses in the future, according to UCL researchers.

Earthquakes as a driver for the deep-ocean carbon cycle

Wed, 10 Jan 18 00:00:20 -0800

An international team led by geologist Michael Strasser has used novel methods to analyze sediment deposits in the Japan Trench in order to gain new insights into the carbon cycle.

Further reducing injections of oilfield wastewater can prevent larger earthquakes

Wed, 10 Jan 18 00:04:10 -0800

The study indicates that tracking annual data on the injection well locations can help predict how corresponding earthquake activity will change.

Batman's Gotham City provides test case for community resilience model

Fri, 05 Jan 18 00:12:50 -0800

If a community is resilient, it can withstand and recover from an unanticipated disaster, like an earthquake, fire or flood. But since every disaster and every community is unique, a uniform measure for defining 'resilience' has been hard to come by for engineers and social scientists. A new study offers an innovative approach to defining resilience that could help communities better prepare for hazards.

Shakedown in Oklahoma: To cut the number of bigger earthquakes, inject less saltwater

Thu, 04 Jan 18 00:07:00 -0800

In Oklahoma, reducing the amount of saltwater (highly brackish water produced during oil and gas recovery) pumped into the ground seems to be decreasing the number of small fluid-triggered earthquakes. But a new study shows why it wasn't enough to ease bigger earthquakes. The study, led by Ryan M. Pollyea of Virginia Tech in Blacksburg, Va., was published online ahead of print in Geology this week.

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.