Sentences with phrase «using seismic waves»

However, because the neutrino is so different than the traditional methods using seismic waves, the new method may eventually be refined to the point where it could reveal previously unattainable details about the Earth's interior.

Jacobsen's findings produced the same evidence of partial melt, or magma, that Schmandt detected beneath North America using seismic waves.

To trace the footsteps of a landslide, they begin by using seismic waves to calculate its force.

The art of using seismic waves to tell one type of event from the others is known as forensic seismology.

[The] tsunami was large, but not unexpectedly larger than the estimation using seismic waves,» Ide adds.

Images gathered by University of Oregon scientists using seismic waves penetrating to a depth of 300 kilometers (almost 200 miles) report the discovery of an anomaly that likely is the volcanic mantle plume of the Galapagos Islands.

For decades, researchers have studied the interior of the Earth using seismic waves from earthquakes.

By analyzing the motions of sound waves reverberating inside the sun, solar physicists can reconstruct the temperatures and motions of gas under the surface — comparable to using seismic waves to probe structures within the Earth.

Romanowicz, who uses seismic waves to study Earth's interior, had previously worked with French, then a graduate student, on a tomographic model of the upper 800 kilometers of the mantle, which showed periodic hot and cold regions of rock underlying hotspot volcanoes.

Scientists seeking to understand the forces at work beneath the surface of Earth have used seismic waves to detect previously unknown «fingers» of heat, some of them thousands of miles long, in Earth's upper mantle.

Because the deep mantle is beyond the direct observation of scientists, they use seismic waves — sound waves at different speeds — to image the interior of the Earth.

To come up with the new picture, researchers used seismic waves from earthquakes to detect temperature differences within the mantle, similar to a CT scan.

Schmandt, an assistant professor of geophysics at the University of New Mexico, uses seismic waves from earthquakes to investigate the structure of the deep crust and mantle.

Not exact matches

Like all earthquake early warning systems, SASMEX uses algorithms to process incoming seismic waves from earthquakes to determine the magnitude of the earthquake.

The seismic airguns used to look for undersea oil don't just disrupt marine mammals, their shock waves also kill and disperse the plankton population

Farrell is using the team's seismic data to predict how earthquake waves might reverberate through the region.

The area that could be explored using lake microseisms is limited to the region close to a lake, but Koper writes that lake microseisms emanating from the Great Salt Lake might reach far enough to visualize how seismic waves would move beneath Salt Lake City, which sits on the Wasatch Fault, in a major earthquake.

Using smartphones» built - in accelerometers, researchers have invented an app — released today — that they say can detect strong earthquakes seconds before the damaging seismic waves arrive.

French used numerical simulations to compute all components of the seismic waves, such as their scattering and diffraction, and tweaked the model repeatedly to fit recorded data using a method similar to statistical regression.

The directions of past and present - day mantle flow can be detected by seismic waves, and changes in the alignment of the rocks inside and at the bottom of the plate can be used to identify layering.

Seismic reflection technology uses artificially generated seismic waves to produce the three - dimensional Seismic reflection technology uses artificially generated seismic waves to produce the three - dimensional seismic waves to produce the three - dimensional images.

Scientists used computer models to track the path of seismic waves through the Earth and generate 3 - D images, These images revealed a new and previously jknknown rock structure in the Chile fault line.

Seismologists often use other types of seismic data to identify this layering: They detect seismic waves that bounce off the interface that separates two layers.

In theory, the same principles might be used to deflect incoming seismic waves.

With a global seismic tomography model that makes use of seismic waves to map the internal structure of the Earth's mantle, Schellart and Spakman were able to identify the fossil slab structure below central and south - eastern Australia at a location and depth predicted by the reconstructions.

Scientists will use that series of tests to see how seismic waves are affected when they travel through fragmented rock as opposed to more coherent granite.

Researchers also used a second test, which compares the amplitudes of two different kinds of seismic waves.

For the Hayward fault simulations, the authors show that GPS data combined with a technology called SBAS (satellite - based augmentation system) could be used to issue warnings five seconds before strong seismic waves from a magnitude 7 earthquake reached major population centers such as San Francisco and San Jose.

In a pair of recently published papers, a team led by Berkeley Lab researcher Jonathan Ajo - Franklin announced they had successfully combined a technology called «distributed acoustic sensing,» which measures seismic waves using fiber - optic cables, with novel processing techniques to allow reliable seismic monitoring, achieving results comparable to what conventional seismometers can measure.

Using a new technique called S - wave receiver function, which can distinguish how long seismic waves take to travel through the lithosphere versus through the underlying semimolten layer called the asthenosphere, the researchers were able to compute plate thicknesses by comparing the travel times of the waves.

Shielding vulnerable structures using large - scale metamaterials — which inhibit the propagation of incoming seismic waves through interference effects — could help to protect a much wider area without any direct modification to existing buildings in the region.

«This study shows how we can expand the use of seismic data by looking at the acoustic waves from volcanic explosions that are recorded on seismometers,» explained Fee.

By measuring those waves using hundreds of seismic stations installed on the surface, near places such as Hawaii, Iceland, and Yellowstone National Park, researchers can deduce whether there are narrow mantle plumes or whether volcanoes are simply created from magma that's absorbed in the sponge - like shallower mantle.

To create this big - picture view, University of Southern California geophysicist Thorsten Becker used seismic tomography, which tracks waves produced by earthquakes as they travel around and through the earth.

This technique leverages more information than competing methods, using forward waves that travel from the quake's origin to the seismic receiver and adjoint waves, which are mathematically derived waves that travel from the receiver to the quake.

For instance, the current minimum frequency used in the team's simulation is about 0.05 hertz (1 wave per 20 seconds), but Bozdag said the team would also like to incorporate seismic waves of up to 1 hertz (1 wave per second).

To test this idea, the team used sophisticated tools at Argonne National Laboratory to examine the propagation of seismic waves through samples of iron peroxide that were created under deep - Earth - mimicking pressure and temperature conditions employing a laser - heated diamond anvil cell.

During a four - year period, the researchers used sensors to measure relative changes in the velocity of seismic waves moving through the volcano over time.

So instead, researchers relied on natural vibrations: They listened for seismic waves from the gurgling and popping of water and steam percolating through the ground near Old Faithful, using 133 seismographs spread across a square kilometer.

As with past studies that made images of Yellowstone's volcanic plumbing, the new study used seismic imaging, which is somewhat like a medical CT scan but uses earthquake waves instead of X-rays to distinguish rock of various densities.

For the purpose of this study, a team of geologists from the Nanjing University, China, and the University of Illinois studied the echoes generated by seismic waves produced during earthquakes to scan below the surface of Earth, much like an ultrasound is used to see inside patients.

To fill in the holes in the sea level rise models, the researchers used a sensor that measures seismic waves and tracked the glacier calving.

in the midst of all of the terrestrial «noise» such as seismic events, sound waves, random laser fluctuations, and thermal effects of the materials used that can easily overwhelm the very weak gravity wave ripples of spacetime.

A Ph.D. student from the University of Texas used an innovative method for analyzing deep seismic waves from large earthquakes to reveal a cylindrical column of hotter - than - normal magma rising from deep below Mexico and surfacing right below the Yellowstone supervolcano, according to a paper published in Nature Geoscience.

Using natural vibrations as a guide, scientists listened for seismic waves and discovered a region of porous rock, 200 meters across and 50 meters thick.

brings This activity illustrates how seismic waves are used to determine the magnitude of an earthquake and to locate its epicenter.

My Teacher Caused an Earthquake An introduction to the topic of seismic waves produced by earthquakes — using cardboard and an old bowling ball.

Using that information plus information he's already compiled for every part of the world on the attenuation characters for seismic waves and the fragility of buildings you get an immediate estimate for the number of dead and injured.

These oscillations are waves very much like seismic waves in the Earth [caused by earthquakes] and just as seismic waves can be used to probe the interior of the Earth, they can be used to probe the solar interior.