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Tag: Seismic

Seismic networks can be the backbone for 21st century firefighting

On the YouTube video, the fire appears first as a small white dot among the trees, then as an unmistakable wisp of smoke curling...

The seismic risk of Ecuador

A doctoral thesis developed at UPM analysed the seismic danger of Ecuador, obtaining maximum values in Esmeraldas province, which was most heavily affected by...

Pavlof Volcano eruption without earthquakes?

Pavlof Volcano began a new eruption on March 27 with little advance warning. Many people have asked why there were no earthquakes in the...

Tiny Accelerometers Create Europe’s First Urban Seismic Network

When a strong earthquake hits an urban area, prompt rescue operations can minimize the number of victims. Logically, the probability of saving a human...

Unrest and eruptions

Seismic, deformation, and gas activity (unrest) typically precedes volcanic eruptions. Tracking the changes of this activity with monitoring data makes it increasingly possible to...

Mysterious Menominee crack is unusual geological pop-up feature

Seismologists studying a massive crack in the ground that appeared north of Menominee, Michigan in 2010 now think they know what the unusual feature...

Separating Earthquakes from Explosions Using Seismic Data

Last week, North Korea tested what it claimed to be a hydrogen bomb, or as the North Korean government declared in its official statement,...

Geologic formation could hold clues to melting glacier floodwaters

Geologists investigating an unusual landform in the Wabash River Valley in southern Illinois expected to find seismic origins, but instead found the aftermath of...

The geography of Antarctica’s underside

Planetary scientists would be thrilled if they could peel the Earth like an orange and look at what lies beneath the thin crust. We...

Liquid acoustics half way to the Earth’s core

The most direct information about the interior of the earth comes from measuring how seismic acoustic waves—such as those created by earthquakes—travel through the...

Seismic Signals Reveal Changes in Water Release from Glaciers

Tidewater glaciers flow from frigid mountains and ice sheet interiors down through ice-carved valleys and terminate in the sea, within fjords. Beneath the glaciers,...

Scientists track speed of powerful internal waves

For the first time researchers directly measured the speed of a wave located 80 meters below the ocean's surface from a single satellite image....

Seismic signature of small underground chemical blasts linked to gas released...

After analyzing the seismic waves produced by small underground chemical explosions at a test site in Vermont, scientists say that some features of seismic...

Rolling in the deep: Mantle flow stress best indicator of US...

Much of what we understand about earthquakes is based on plate tectonics. But for residents of Utah's seismically restless Wasatch Front, a 120-mile-long metropolitan...

‘Myths’ persist about the increase in human-caused seismic activity

Seismologists studying the recent dramatic upswing in earthquakes triggered by human activity want to clear up a few common misconceptions about the trend. There is...

Large Quakes May Dampen Themselves

Most models of ground motion during earthquakes have the earth shifting and grinding, then returning to essentially the same state as before once the...

New technique harnesses everyday seismic waves to image Earth

A new technique developed at Stanford University harnesses the buzz of everyday human activity to map the interior of the Earth. "We think we...

Lawrence Livermore researchers use seismic signals to track above-ground explosions

Lawrence Livermore researchers have determined that a tunnel bomb explosion by Syrian rebels was less than 60 tons as claimed by sources. Using seismic stations...

Noise produces volcanic seismicity, akin to a drumbeat

A new study shows that relatively small external disturbances play a crucial role in chaotic phenomena like the recent Calbuco volcanic eruption in Chile,...

Rupture along the Himalayan Front

In their article for Lithosphere on 12 March, authors Kristin Morell and colleagues write, "The ∼700-km-long 'central seismic gap' is the most prominent segment...

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