Sentences with phrase «earthquake waves»

The regions get their name from the way that earthquake waves travel so much more slowly through them.

To pin down that origin, the researchers tracked faint earthquake waves as they passed up through the neighboring valley.

Measuring earthquake waves that travel deep inside the planet, the scientists were able to retrieve images of what goes on inside the earth's mantle at a depth of about 3,000 kilometers.

To produce her inner view, Montelli and her colleagues mapped the arrival of earthquake waves at seismic stations around the world.

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.

The study detected a thin continuous layer of rock that starts near the surface and slopes gently to the south to depths of approximately 20 kilometers, in which earthquake waves travel faster than in the surrounding rocks.

A team led by seismologist Sara Russell of the University of California, Santa Cruz, found an odd pattern in earthquake waves that bounced off the outer core beneath Hawaii.

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

That's because earthquake waves pass underneath the region from different directions and can be picked up by sensors on opposite sides of the world, unlike the Pacific islands.

Using earthquake waves picked up by arrays of sensors in the United States and China, her team better identified the position and shape of the ULVZ.

Researchers determine the mantle's density by measuring the speed of earthquake waves as they zip back and forth through the planet.

Earthquake waves that pass through the inner core travel faster north - south than they do east - west.

Watch how engineers are bending light and earthquake waves to their will?

Applying alternating electrical signal to the material causes the material to deform periodically and generate sound waves that grow on its surface, similar to earthquake waves that grow from the center of the earthquake.

But by measuring rotation as well as translation, seismologists can get not only the displacement of earthquake waves but also their velocities, which are a powerful probe of subsurface structure.

More powerful computers will allow her to use more of the high - frequency content of earthquake waves, the part that is best at illuminating shallow structures like ULVZs.

One of the most important variables that affect earthquake damage to buildings is seismic wave frequency, or the rate at which an earthquake wave repeats each second.

Darwin noted, says Ashford, that earthquake waves are amplified by certain geological features, most notably mountain tops and cliff tops.

What controls the origin and propagation of earthquake waves?