earthquake faults

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earthquake faults
earthquake faults
When there is an earthquake, do all fault lines in that area move or crack?


Or do earthquakes start/originate per fault line?
For example, does the San Adreas fault move/crack when there's an earthquake at the San Fernando/Northridge fault?

Fault: crack in the crust of the Earth along which significant movement has occurred

Major faults like the San Andreas are more than one crack. There may be one crack on which most of the motion takes place, but there is also a network of anastomosing branches associated with it. Many of these would have movement during a major earthquake, but some would not because the stress was directed away from them and toward the ones that moved.

http://en.wikipedia.org/wiki/Fault_mechanics

http://en.wikipedia.org/wiki/Geologic_fault

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SAN ROQUE DAM WARNING! EARTHQUAKE ACTIVE FAULTS, NAPOCOR SAYS THERE IS NO DANGER

When do you think the mega earthquake will take place in the Hayward Fault in Calfiornia, USA?


There have recently been about 5 earthquakes in the area. Many of them were 3.0. The earthquakes occured all around California, mainly by the Hayward Fault. Does this indicate a major earthquake is about to come? When do you predict this will occur? Will it still happen in the Hayward Fault, although the small earthquakes occur in cities other than Hayward? What about the extremely cold climate in California? Should the government already do something to protect its citizens? What's your take on this issue?

For the Hayward Fault, a 62% chance of a magnitude 6.7 or higher by the year 2032.

In California, the state government already does much more (like having quake resistant building codes and prepared disaster plans) than other states with risks of larger earthquakes.

Not much else that is practical can be done to protect citizens.... except maybe make them move elsewhere.


2 Comments

  1. lobomuerto11
    Posted September 13, 2010 at 6:18 pm | Permalink

    Say not “Trinity”: desist: it will be better for you: for Allah is One God: glory be to Him: (far Exalted is He) above having a son. To Him belong all things in the heavens and on earth. And enough is Allah as a Disposer of affairs.

  2. Posted September 25, 2010 at 10:40 pm | Permalink