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A seismic mapping milestone

Because of Earth's layered composition, scientists have often compared the basic arrangement of its interior to that of an onion. There's the familiar thin...

Release of water shakes Pacific Plate at depth

Tonga is a seismologists' paradise, and not just because of the white-sand beaches. The subduction zone off the east coast of the archipelago racks...

Seismically active Katmandu region in store for larger earthquake

An earthquake much more powerful and damaging than last year's 7.8 magnitude quake could rock Katmandu and the Himalayan Frontal Fault, an international team...

Fault curvature may control where big earthquakes occur

Major earthquakes -- magnitude 8.5 and stronger -- occur where faults are mostly flat, say University of Oregon and French geologists. Curvier faults, they...

To recover from next big quake, start today

Seismologists with the U.S. Geological Survey recently discovered that the Hayward Fault, considered the most dangerous fault in the San Francisco Bay Area, is...

Scientists reconstruct formation of the southern Appalachians

Around 300 million years ago, the landmass that is now North America collided with Gondwana, a supercontinent comprised of present-day Africa and South America....

Seismologists warn of more quakes in New Zealand

Seismologists in New Zealand said Friday that this week's 7.8 earthquake was one of the most complex ever recorded and warned there was a...

Study reveals two seismic processes by which hydraulic fracturing induces tremors

In some parts of western Canada, small-to-moderate earthquakes have been induced by oil and gas hydraulic fracturing operations. In Alberta, this type of induced...

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...

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