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Tag: Seismic

Japan, Taiwan and New Zealand collaborate on seismic hazard models

In Japan, Taiwan and New Zealand, one of the largest driving forces behind earthquakes is the active convergence of tectonic plates at rates of...

Seismometers are giving scientists a clearer look at a giant scar...

When Doug Wiens approached Minnesota farmers to ask permission to install a seismometer on their land, he often got a puzzled look. "You could...

Seismic ‘CT scans’ reveal deep earth dynamics

A new look 100 miles beneath a massive tectonic plate as it dives under North America has helped clarify the subduction process that generates...

Some signs of induced seismicity spotted in Salton Trough’s geothermal production...

In some parts of Southern California's Brawley Seismic Zone, geothermal energy production may be increasing the background seismicity rate, but changes in earthquake rates...

Scientists use seismic waves to map Okmok volcano

In the rich volcanic landscape of the Aleutians, Okmok volcano on Umnak Island has drawn special attention this summer. Matt Haney, a research geophysicist with...

Chasing the volcano “A series of seismic shocks which preceded Iceland’s...

In 2014, Cambridge researchers monitored a series of seismic shocks which preceded Iceland's biggest volcanic eruption in 200 years. The dramatic story of their...

Rust under pressure could explain deep Earth anomalies

Using laboratory techniques to mimic the conditions found deep inside the Earth, a team of Carnegie scientists led by Ho-Kwang "Dave" Mao has identified...

Scientists track Greenland’s ice melt with seismic waves

Researchers from MIT, Princeton University, and elsewhere have developed a new technique to monitor the seasonal changes in Greenland's ice sheet, using seismic vibrations...

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....

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