Delivered-To: igsmail@igscb.jpl.nasa.gov Received-SPF: none (mailbox2.ucsd.edu: domain of pjamason@gpsmail.ucsd.edu does not designate permitted sender hosts) Date: Wed, 29 Sep 2004 13:42:52 -0700 (PDT) From: Paul Jamason To: igsmail@igscb.jpl.nasa.gov, scignmail@scign.org, unav_all@ls.unavco.org Subject: [IGSMAIL-5021]: Parkfield CA earthquake preliminary offsets Message-ID: Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 29 Sep 13:43:29 PDT 2004 Message Number 5021 ****************************************************************************** Author: Paul Jamason, Yehuda Bock, Peng Fang, Jeff Genrich Subject: Parkfield CA earthquake preliminary offsets Preliminary co-seismic offsets have been calculated for the 09/28/2004 Parkfield CA earthquake, and are listed below. Summary pages for the event are available from the new reason.scign.org website at: http://reason.scign.org/scignDataPortal/parkfieldEq09282004.jsp and from the SOPAC website at: http://sopac.ucsd.edu/other/news/parkfieldEq09282004.html These summary pages include links to Parkfield high-rate GPS site data (1-second sampling rate) at SOPAC and NCEDC, epoch-by-epoch solutions, and additional resources. A horizontal co-seismic displacement vector map will also be available shortly. Questions regarding high-rate data processing may be directed to Jeff Genrich (jeff@gpsmail.ucsd.edu). Questions regarding web resources may be directed to Paul Jamason (pjamason@gpsmail.ucsd.edu). ################################################################ Preliminary co-seismic offsets (after - before): NORTH EAST UP (mm/mm/mm) MASW 36.14 18.32 -3.28 MIDA -33.36 -16.55 -10.61 POMM 4.94 33.10 4.89 RNCH 10.81 35.36 8.58 HUNT -28.42 -31.61 8.01 LAND 27.80 30.85 0.97 CARH -7.72 -10.28 2.20 PKDB 9.58 36.60 12.04 USLO 0.00 -0.25 -0.04 CAND -37.38 -16.79 -2.18 MNMC -29.96 -4.26 -8.86 TBLP -20.39 -23.57 1.52 HOGS 33.67 18.82 2.73 CRBT 0.31 6.28 7.10 LOWS 3.09 10.54 5.48 Notes: Pre-quake solution data: 00:00 - 17:00 GMT Post-quake solution data: 18:00 - 24:00 GMT The north/east/up constraints for USLO are 1/1/4 mm, while all others are 5/5/10 cm. GPS orbits are tightly constrained to IGS ultra rapid. ################################################################ Thank you, Paul ----------------------------------------------------------------- Paul Jamason Programmer/Analyst Scripps Orbit and Permanent Array Center (http://sopac.ucsd.edu) California Spatial Reference Center (http://csrc.ucsd.edu) Institute of Geophysics and Planetary Physics Scripps Institution of Oceanography University of California, San Diego work: 858-822-4472 9500 Gilman Dr. cell: 858-663-3508 La Jolla, CA 92093-0225 fax: 858-534-9873 -----------------------------------------------------------------