In geology, a fault is a planar fracture or discontinuity in a volume of rock, across
which there ... Energy release associated with rapid movement on active faults is
the cause of most earthquakes....
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Sources: National Geographic, Esri, DeLorme, HERE, UNEP-WCMC, USGS,
This section describes how earthquakes happen and how they are measured. ...
An earthquake is caused by a sudden slip on a fault, much like what happens ...
What's at fault? From an earthquake's point of view, there's more than one way to
devastate a city. Most earthquakes occur along cracks in the planet's surface ...
A fault line is a fracture along which the crust has moved. Stresses in the crust
along New Zealand's plate boundary have broken it into separate fragments or ...
The Alquist-Priolo Earthquake Fault Zoning Act was passed in 1972 to mitigate
the hazard of surface faulting to structures for human occupancy. This state law ...
The Alquist-Priolo Earthquake Fault Zoning (AP) Act was passed into law
following the destructive February 9, 1971 Mw 6.6 San Fernando earthquake.
Mar 17, 2016 ... Two of Southern California's most active faults could rupture together in a
magnitude-7.5 earthquake, according to a new study, raising a grim ...
May 4, 2016 ... Southern California's section of the San Andreas fault is "locked, loaded and
ready to roll," a leading earthquake scientist said at the National ...
Oct 16, 2012 ... Below is a map of Southern California to display significant earthquakes and
faults. The fault traces are shown in red. This is an interactive map.