QUOTE(A340-600 @ Mar 16 2005, 09:41 PM)
oh yeah, i'm really worried, oh no, wut are we going to do?
...remember the huge earthquake that scientists say was supposed to happen in California? I'm still waiting for it
When Could the Next Large Earthquake Occur Along the San Andreas Fault?
Along the Earth's plate boundaries, such as the San Andreas fault, segments exist where no large earthquakes have occurred for long intervals of time. Scientists term these segments "seismic gaps" and, in general, have been successful in forecasting the time when some of the seismic gaps will produce large earthquakes. Geologic studies show that over the past 1,400 to 1,500 years large earthquakes have occurred at about 150-year intervals on the southern San Andreas fault. As the last large earthquake on the southern San Andreas occurred in 1857, that section of the fault is considered a likely location for an earthquake within the next few decades. The San Francisco Bay area has a slightly lower potential for a great earthquake, as less than 100 years have passed since the great 1906 earthquake; however, moderate-sized, potentially damaging earthquakes could occur in this area at any time.
A great earthquake very possibly will not occur unannounced. Such an earthquake may be preceded by an increase in seismicity for several years, possibly including several foreshocks of about magnitude 5 along the fault. Before the next large earthquake, seismologists also expect to record changes in the Earth's surface, such as a shortening of survey lines across the fault, changes in elevation, and effects on strainmeters in wells. A key area for research on methods of earthquake prediction is the section of the San Andreas fault near Parkfield in central California, where a moderate-size earthquake has occurred on the average of every 20-22 years for about the last 100 years. Since the last sizeable earthquake occurred in 1966, Parkfield has a high probability for a magnitude 5-6 earthquake before the end of this century and possibly one may occur within a few years of 1988. The U.S. Geological Survey has placed an array of instruments in the Parkfield area and is carefully studying the data being collected, attempting to learn what changes might precede an earthquake of about that size.http://www.data.scec.org/clickmap.html
California 1812 Dec 21 19:00 34.2 N 119.9 W 7.1 Santa Barbara Channel
1857 Jan 09 16:24 35.7 N 120.3 W 7.9 Fort Tejon
1872 Mar 26 10:30 36.7 N 118.1 W 7.6 Owens Valley
1892 Feb 24 07:20 32.55N 115.63W 7.8 Imperial Valley
1899 Apr 16 13:40 41.0 N 126.0 W 7.0 West of Eureka
1906 Apr 18 13:12:21 37.67N 122.48W 7.8 San Francisco
1922 Jan 31 13:17:22 41.0 N 125.5 W 7.3 West of Eureka
1923 Jan 22 09:04:18 40.5 N 124.5 W 7.2 Cape Mendocino
1927 Nov 04 13:50 34.7 N 120.8 W 7.1 West of Lompoc
1952 Jul 21 11:52:14.0 35.00N 119.02W 7.3 Kern County
1980 Nov 08 10:27:34.0 41.12N 124.25W 7.2 Gorda Plate
1991 Aug 17 22:17:14.6 41.82N 125.40W 7.1 West of Crescent City
1992 Apr 25 18:06:04.2 40.37N 124.32W 7.2 Cape Mendocino
1992 Jun 28 11:57:34 34.20N 116.44W 7.3 Landers
1994 Sep 01 15:15:53.0 40.40N 125.68W 7.1 Off Coast of Northern California
1999 Oct 16 09:46:44.1 34.59N 116.27W 7.2 Hector Mine