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Fault (geology)


In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there ... When this happens, stress builds up in rocks and when it reaches a level that exceeds the strain...

Exactly What Happens to the Ground at a Fault Line ...


May 13, 2010 ... When a lot of slippage happens all at once, the result is a major ... Powerful quakes have lasting impacts on a fault zone, creating new fractures ...

Earthquake Faults - IRIS


happens on a discrete area of the fault plane that ... fault,v much like what happens .... vertical as in a strike slip fault or inclined like a subduction zone fault.

Geography4Kids.com: Earth Structure: Faulting


Folding happens when two pieces of a plate come together and push against each other. ... They run up and down the plate in an area called a fault zone.

How Do Earthquakes Occur Along Fault Zones?


How do earthquakes happen? Earthquake occurs due to slide around the fault line. The cause of the earthquakes is the rupture in the ground based on the ...

Earthquake Facts & Earthquake Fantasy


Apr 7, 2016 ... The magnitude of an earthquake is related to the area of the fault on .... Those earthquakes happened on subduction zone faults, on which fault ...

The San Andreas Fault - U.S. Geological Survey


Jan 11, 2013 ... Many smaller faults branch from and join the San Andreas fault zone. Almost any road cut in the zone shows a myriad of small fractures, fault ...

Earthquakes & Earth's Interior - Tulane University


Sep 24, 2015 ... What happens during an earthquake? .... Once a fault forms, it becomes a zone of weakness in the crust, and so long as the tectonic stresses ...

The New Madrid Earthquake That Will Divide The United States In ...


Feb 26, 2015 ... This fault zone is six times larger than the San Andreas fault zone in .... happen if a major earthquake did strike the New Madrid fault zone?

What Caused the Chilean Earthquake? Faults Explained


Apr 2, 2014 ... Most earthquakes arise along such fault zones. The ground first bends and then snaps—an earthquake—to release energy along faults.

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Earthquakes and faults - Putting Down Roots in Earthquake Country


This section describes how earthquakes happen and how they are measured. ... A fault is a thin zone of crushed rock separating blocks of the earth's crust.

Fault Lines: Facts About Cracks in the Earth - Live Science


Sep 25, 2014 ... These faults are commonly found in collisions zones, where tectonic plates push up mountain ... What Ever Happened to the Richter Scale?

Faults and Faulting - Penn State Earthquake Seismology


Not all faults intersect Earth's surface, and most earthquakes do no rupture the surface. ... Structure of an exposed section of a vertical strike-slip fault zone (after  ...