aftershocks along fault too long for M5.6
Posted by chris in suburbia on June 13, 2005 at 07:14:29:

The California map, zoomed in (see link), has the tiny aftershocks over what looks to be 40 km along a NW-SE trend (along the San Jacinto fault or whatever the local strand is called there). That is way too long for a M5.6....I would expect a M5.6 rupture to be a couple of km across........so what is happening? is the whole 40 km piece creeping...triggered slip? And, what does this mean for a M6.8 or 7 rupturing through that whole illuminated part of the fault? I'm guessing that the distribution of aftershocks is not a function of mislocation because they define such a narrow lineament.....

Also: of that 40 km piece were to fail, would that advance the time of a future rupture on the San Andreas fault to the north...is that the San Bernadino segment?
Just some food for thought...not a prediction.
Chris



Follow Ups:
     ● Jones&Hauksson say cross fault - chris in suburbia  11:45:20 - 6/13/2005  (26380)  (2)
        ● Re: Jones&Hauksson say cross fault - Canie  17:52:14 - 6/13/2005  (26388)  (0)
        ● Re: Jones&Hauksson say cross fault - Cathryn  11:49:16 - 6/13/2005  (26381)  (0)
     ● Re: aftershocks along fault too long for M5.6 - Canie  10:47:21 - 6/13/2005  (26379)  (0)
     ● Only 5.2 now ..... - Michael Tolchard  09:19:18 - 6/13/2005  (26378)  (1)
        ● Re: Only 5.2 now ..... - Mary Antonelli  16:10:39 - 6/13/2005  (26384)  (1)
           ● Re: Only 5.2 now ..... - Todd  16:23:26 - 6/13/2005  (26385)  (1)
              ● Re: Only 5.2 now ..... - Don in Hollister  17:09:04 - 6/13/2005  (26387)  (1)
                 ● Re: Only 5.2 now ..... - chris in suburbia  18:07:43 - 6/13/2005  (26392)  (0)