Tags Seismic

Tag: Seismic

Study details evidence for past large earthquakes in the Eastern Tennessee...

The Eastern Tennessee Seismic Zone (ETSZ), a zone of small earthquakes stretching from northeastern Alabama to southwestern Virginia, may have generated earthquakes of magnitude...

Hydraulic fracturing rarely linked to felt seismic tremors

New research suggests hydraulic fracturing and saltwater disposal has limited impact on seismic events. For the past two years, UAlberta geophysicist Mirko Van der Baan...

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...

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