Is Southern California Going To Have A Major Quake Soon?
Posted by Don in Hollister on April 14, 2004 at 20:21:53:

Hi All. There may be a major quake in the near future for Southern California according to University of Oregon geologist Ray Weldon. A detailed analysis of two periods of past quake activity on a section of the fault suggests a drawn-out period of little seismic activity may be coming to an end.

“Digging into the San Andreas at a location called Wrightwood about 60 miles northeast of downtown Los Angeles, Weldon and his colleagues found evidence of 30 quakes of magnitudes between 7.5 and 8.0 that had struck between 3000 and 1200 B.C. and A.D. 500 and the present.”

“An earthquake on the southern San Andreas of magnitude-7.5 or larger could kill thousands of people in the greater Los Angeles area and cause damage estimated in the tens of billions of dollars, experts have said.”

“On average, quakes of that size have struck Wrightwood at roughly 100-year intervals, although the lulls between temblors lasted as little as 10 years and as long as 224 years.”

“When viewed in series, the quakes appear to have struck in flurries, followed by periods of relative quiet.”



Follow Ups:
     ● Re: Is Southern California Going To Have A Major Quake Soon? - Canie  08:48:08 - 4/16/2004  (21540)  (1)
        ● Re: Is Southern California Going To Have A Major Quake Soon? - Don in Hollister  12:35:09 - 4/16/2004  (21541)  (0)
     ● Re: Is Southern California Going To Have A Major Quake Soon? - Todd  09:43:33 - 4/15/2004  (21530)  (2)
        ● the press likes excitement - John Vidale  14:17:06 - 4/15/2004  (21535)  (0)
        ● Re: Is Southern California Going To Have A Major Quake Soon? - Don in Hollister  11:04:03 - 4/15/2004  (21531)  (1)
           ● Re: Is Southern California Going To Have A Major Quake Soon? - Todd  13:23:16 - 4/15/2004  (21533)  (1)
              ● Re: Is Southern California Going To Have A Major Quake Soon? - Don in Hollister  13:54:26 - 4/15/2004  (21534)  (1)
                 ● Re: Is Southern California Going To Have A Major Quake Soon? - Canie  08:45:38 - 4/16/2004  (21538)  (1)
                    ● Re: Is Southern California Going To Have A Major Quake Soon? - chris in suburbia  16:00:11 - 4/18/2004  (21548)  (1)
                       ● not quite - John Vidale  18:11:26 - 4/18/2004  (21553)  (1)
                          ● Re: not quite - chris in suburbia  08:46:03 - 4/19/2004  (21559)  (1)
                             ● there was some prior work - John Vidale  10:42:10 - 4/19/2004  (21560)  (1)
                                ● Re: there was some prior work - Cathryn  22:20:39 - 4/22/2004  (21583)  (1)
                                   ● Sylmar quake - John Vidale  22:11:00 - 4/23/2004  (21594)  (1)
                                      ● Re: Sylmar quake - Cathryn  13:59:42 - 4/24/2004  (21611)  (1)
                                         ● SM mountains - John Vidale  09:01:59 - 4/26/2004  (21623)  (0)
     ● Re: Is Southern California Going To Have A Major Quake Soon? - Roger Hunter  09:29:31 - 4/15/2004  (21527)  (1)
        ● Re: Is Southern California Going To Have A Major Quake Soon? - Don in Hollister  09:43:28 - 4/15/2004  (21529)  (0)