... frequencies that occur in nature. Results of these latest seismic wave simulations were announced at SC08, the international ... Calif.; (12,150 cores with a shortest seismic wave of 3 seconds at 24 TFlops ...
Seismic waves generated by earthquakes pass through the earth. Changes in their direction or velocity indicate variations in the materials through which they pass. Geophysicists have now been able to ...
... Each time it moves, it gives off seismic waves that are recorded at seismographs all around Antarctica, ... first we didn't know where the waves were coming from, but eventually we were able to narrow down ...
... source was most likely from a collapse. They also found an additional string of secondary surface seismic waves that occurred when the mine collapsed, which are like no other mine collapse events in ...
... applied a method developed to detect underground nuclear weapons tests to quickly examine the seismic recordings of the event and determine whether that source was most likely from a collapse.
... see whether the effects of the tiny fissures on seismic wave velocity are different from macroscopic fractures ... saturated rock samples whereas velocity of S-wave is reduced by 500-800m/s (about 15% less ...
... minimized. Using a series of concentric rings in the foundation of a building, this "cloak" directs seismic waves around a building, rather than destructively against and through it.
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... at the Earth's surface. This helps to indicate where they took place.
Now, by analysing the seismic waves from two different earthquakes, the team has been able to simulate the seismic waves from ...
... signal strengths on numerous paths as the radio waves pass through a person or other target. In that sense ... method, measurements of the radio waves, X-rays or seismic waves are made along many different ...
... the reporter: "You know, we can already diagnose the deep structure of the Earth by analyzing seismic waves. Similarly, we now can diagnose the magnetic field in the solar corona by analyzing EIT ...
... in their light output can reveal what goes on in their interiors--similar to the way geologists study seismic waves from earthquakes to understand what goes on in Earth's interior. In fact, this type ...
... lower mantle. To understand this region, seismologists analyze tomographic images constructed from seismic wave readings. For 25 years they have been detecting differences in the speeds of waves that ...
... families have feared. The misconception arose from the fact seismic waves reverberate for much longer than the collapse ... new Berkeley paper shows that while seismic waves from the Aug. 6 mine collapse ...
... 's crust are subjected to transient strains and stresses. These stresses and strains may be caused by seismic waves generated by earthquakes, and they may lead to additional earthquakes -- often long ...
... a known source of stress, namely barometric pressure. In a previous study, Silver and colleagues found that seismic wave speed is affected by changes in the barometric pressure. They found the same ...
