They already predicted a 8-9 for here months ago. Because the earthquake will be so large people are not really doing anything about it.
We have several quakes in weird places where nobayd was or out in the ocean so i hope those were them or releaved the stress.
BTW most asian earthquakes look biger because of weak building and safety codes. I am willing to bet the antarica quake killed nobody. In a place like california it would mostly cause isolated damage from items owned by the vitim killing them. Very rarely does a whole building fall down here unless it is old. Usually the quake happens the damaged building suvives, but the city tears it down.
Earthquake: Attention to all the people in California etc.
by Erich 11 Replies latest social current
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XQsThaiPoes
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Erich
Hi Free willy,
here is another study, see
http://www.data.scec.org/Module/sec2pg19.html
"Can earthquakes trigger other earthquakes -- those outside of their `aftershock zones'?"
Evidence suggests that large earthquakes can also trigger earthquakes outside of their aftershock zones, where the stress change resulting from the ground rupture should be minimal. The exact reasons for this, and the mechanisms behind such "triggering", are debatable. While it's assumed that aftershocks (which are a type of triggered event) are induced by the radical changes in stress on the rocks near a fault rupture, such changes should not extend as far from the rupture as "triggered earthquakes" have been observed. So why do triggered events occur?
Many scientists feel it has something to do with the ground motion of a large earthquake, and how this shaking affects stressed and faulted rocks. Think of it as bumping an unstable object, inducing it to fall over, even if the tumble is not immediate. The relationship seen in examples of large earthquakes with triggered events is not as simple as one might expect in a standard "chain reaction" -- when one event immediately and directly leads to another, and another, and so on. As with aftershocks, the time between a triggered earthquake and the event that causes it can be hours, days, weeks, or even months or years.
This is one explanation for the lack of an obvious correlation between tidal forces (which could act as a trigger in a way similar to the force of earthquake shaking) and the onset of seismicity. If the time between a triggered event and its cause can vary greatly, then we would probably see no obvious correlation between tides and earthquake activity, which is indeed the case. This does not mean tidal effects do not influence earthquakes at all, but rather that any influence they have will be unpredictable, and therefore useless to consider in any practical application involving earthquake forecasting.
To see how seismologists arrived at the conclusion that triggered earthquakes can occur outside of aftershock zones, work through the activity below, which focuses on the extended effects of the 1992 Landers earthquake in southern California.