triggered slip far southern California
Posted by heartland chris on June 19, 2010 at 09:09:21:

Hi Penny and all,

In addition to the area of the M4.7 where an alignment of seismicity intersects the southern San Jacinto system (I don't know the names of individual fault strands without looking at a fault map), another place for a M6+ quake would be just north of where the M5.7 aftershock just occured.

There was an added session at the GSA Cordilleran Section Pacific Section AAPG meeting in late May (May 29) on the Baja quake. I saw the afternoon talks. I cannot find the abstract of the triggered slip talk online, probably because it was added and so not in the abstract volume.

There was slip of on the order of 10 mm on certain faults around far southern California, triggered by the large quake. I don't know whether this was the strong ground motion that triggered the surface slip, or the stress redistribution. Most important to future quakes is whether this is just a shallow effect and the deeper fault did not slip, or if the whole faulst did a little slip. Seismicity would probably answer that.


Here is the abstract volume, but it appears to miss the added session; post if I am wrong:
http://www.geosociety.org/sectdiv/cord/2010mtg/10coAWP.pdf


Here is the Saturday May 29th talk I am referring to:
2-4 2:30 PM Treiman, J.A.*; Rymer, M.J.; Kendrick, K.J.; Lienkaemper, J.J.; Weldon, R.J. II.; Hernandez, J.L.; Irvine, P.J.; Knepprath, N.; Olson, B.P.E.; Sickler,
R.R.: TRIGGERED SLIP IN SOUTHERN CALIFORNIA AS A RESULT OF THE APRIL 5, 2010 EL MAYOR-CUCAPAH EARTHQUAKE

Chris



Follow Ups:
     ● Re: triggered slip far southern California - heartland chris  09:11:26 - 6/19/2010  (77268)  (2)
        ● Re: triggered slip far southern California - Skywise  11:29:26 - 6/19/2010  (77270)  (0)
        ● Re: triggered slip far southern California - PennyB  10:05:02 - 6/19/2010  (77269)  (1)
           ● old - heartland chris  15:45:48 - 6/19/2010  (77271)  (0)