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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.

San Andreas Fault Line - Fault Zone Map and Photos - Geology.com


The same thing happens with the fault, and the geology and landforms along the mighty rift are extremely complicated. San Andreas Fault Zone Picture.

Earthquake Glossary - locked fault

earthquake.usgs.gov/learn/glossary/?term=locked fault

locked fault. A locked fault is a fault that is not slipping because frictional resistance on the fault is greater than the shear stress across the fault (it is stuck).

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.

Fault Lines: Facts About Cracks in the Earth - LiveScience


Sep 25, 2014 ... These faults are commonly found in collisions zones, where tectonic plates push up ... How Japan's 2011 Earthquake Happened (Infographic).

The San Andreas Fault - usgs


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 ...

What Is a Geologic Fault? - Windows to the Universe


Jan 19, 2010 ... Normal faults happen in areas where the rocks are pulling apart (tensile forces) so that the ... These clusters of faults are called fault zones.

Strike-Slip Fault


Fault rupture of the ground generates vibrations-or waves-in the rock that we feel ... Faults are weaknesses in the rock and therefore earthquakes tend to occur ...

More Info

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.

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  ...

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 ...