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  • rolohman
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Previously, SCEC tectonic geodesy group participants responded to our requests and provided information about the instrumentation, personnel, etc available. Based on the spacing of continuous sites, and the previous occupation history of existing campaign sites, we have compiled a preliminary list of target sites for immediate reoccupation with the goal of achieving good station coverage throughout the region of largest anticipated displacements. Of course, these are just suggestions and we realize that many sites may be inaccessible due to road closures and other unforeseen events. As coordinators of the SCEC geodesy response to the earthquake, it would help us if you kept us informed of which sites you intend to observe and at which sites you ultimately are able to collect data. Please cc- both of us on correspondence, as one or the other of us may be unavailable. UNAVCO can provide additional instrumentation as necessary, and we can assist with these arrangements.
  • ybock
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Attached are selected simulated total displacement waveforms for the ShakeOut event, in north, east and up components. These are from the stations of the California Real Time Network (CRTN - http://sopac.ucsd.edu/projects/realtime/), and were prepared by Brendan Crowell. Also, see links at http://geoapp03.ucsd.edu/gridsphere/gridsphere?cid=ShakeOut and a replay of the event at http://geoapp03.ucsd.edu/gridsphere/gridsphere?cid=EWS -- Yehuda
  • jrmurray
    ShakeOut Response Planning - Geodesy Group   13 years 39 weeks ago
    Attached is an update to the predicted displacements using the new magnitude of 7.8.
  • arrowsmi
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    We computed some hillshades for viewing in Google Earth of the major highway crossings along the expected rupture. There are two flavors: one with the images embedded (could put them on a laptop for the field), but they are 10s of Mb. The others are network links for the images so are fast to download, but pull appropriate scale and coverage in as you zoom and pan: http://stockdale.sese.asu.edu/B4/ We can generate more specialized maps if anyone needs them. These images should span the rupture belt if the geology and geomorphology from past events can tell us about anything in the future. ramon
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    == SHAKEOUT SCENARIO FINAL EARTHQUAKE REPORT == California Integrated Seismic Network http://www.cisn.org USGS/Caltech/CGS/UCB/UCSD/UNR Version 3: This report supersedes any earlier reports about this event. This is a computer-generated message that has been reviewed by a seismologist. PRINCIPAL EARTHQUAKE PARAMETERS UPDATE ______________________________ _ Magnitude : 7.8 Mw Time : 13 November 2008 10:00:00 AM PDT : 13 November 2008 18:00:00 UTC Coordinates : 33 deg. 25.2 min. N, 115 deg. 50.4 min. W Depth : 6.3 miles ( 10 km) Location Quality : Excellent 1 mi. Bombay Beach, CA 6 mi. Coachella Valley, CA More Information about this SCENARIO event and other earthquakes is available at http://earthquake.usgs.gov/eqcenter/eqinthenews/2008/shakeout/ ADDITIONAL EARTHQUAKE PARAMETERS ________________________________ rms misfit : 0.47 seconds horizontal location error : 0.3 km vertical location error : 0.6 km maximum azimuthal gap : 28 degrees distance to nearest station : 6.0 km event ID : 999 SOURCE OF INFORMATION/CONTACTS ________________________________ CISN Southern California Management Center Caltech Seismological Laboratory U.S. Geological Survey http://www.cisn.org/scmc.html ________________________________ _______________________________________________ Duty mailing list Duty@scsnmail.gps.caltech.edu http://unix1.gps.caltech.edu/mailman/listinfo/duty
  • tjordan
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Neither did I.
  • swalter
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    A major earthquake has occurred, all indications are that it is on the Southern San Adreas Fault. No name as yet; stay tuned. Origin Date: 2008-Nov-13 Origin Time: 10:00 PST Magnitude: Mw 7.8 (NEIC) Latitude: 33.345 deg Longitude: -115.707 deg Due to the magnitude very strong shaking and substantial damage is likely throughout the greater southern California region, especially in large population centers such as the Metropolitan Los Angeles region, San Bernardion and Palm Springs. Significant damage is likely south of the U.S.-Mexico border in Mexicali. Rupture likely from Bombay Beach near the Salton Sea to Palmdale CA. Moment Tensor is consistent with strike-slip on the San Andreas Fault.
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    This includes the dial--up stations as well.
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    I would like to hold a conference call at 11:15, to touch base with those of you who are responding and are available, about coordinating the scenario response. Please call the dedicated dial-in number: 1-218-936-7979 Access code: 565853. Thanks, Greg
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    I didn't get the memo - no matter.
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    As I noted on a separate thread. I have been unable to reach either Jamie Steidl or Ralph Archuleta about the SCEC PBIC instruments. I'll keep trying though.
  • tjordan
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    I just confirmed that the script has been changed from Circular 1324. The M7 aftershock in Coachella is scheduled for 12:33 pm. Who says we can't predict large earthquakes!
  • jrmurray
    ShakeOut Response Planning - Geodesy Group   13 years 39 weeks ago
    A crew of five people from the USGS Menlo Park will be departing shortly for southern California to begin reoccupying GPS sites located in that region. We will target sites closest to the rupture that have a history of observations and fill gaps in continuous GPS coverage.
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    My scenario had this happening at 10:33, but the Shakemap (attached) has it happening at 12:33. In any case, we should have gotten a Shakemap for this earthquake within 10 minutes of the event or so (whether now or in two hours).
  • dolan
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Spoke with Mike Oskin via both cell pohone (working fine) and sat phone. We are organizing our field gear and plan to begin driving ou to the epicentral area to check offsets along the Coacheela segment of SAF (apparently the source). Will check in with USGS personnel in 20-30 minutes as soon as we're ready to roll. I will phone in preliminary observations as soon as we can get out there... James
  • beroza
    ShakeOut Response Planning - Seismology Group   13 years 39 weeks ago
    I have now contacted JimFowler and David Simpson about getting instruments from the IRIS RAMP pool.
  • tjordan
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Here's the NSF response from Robin Reichlin: Tom, Kaye is in panel, but I am writing to say you are authorized to use committed funds to mount an immediate field response. When the dust settles, we can discuss targeted funds through the SGER mechanism. We can agree by phone or email to commit resources, and PIs can follow up later with supplement or SGER requests using the 90-day pre-spending process. Good luck, and keep us posted. Robin Robin Reichlin Program Director, Geophysics National Science Foundation 4201 Wilson Blvd. Arlington, VA 22230 703-292-4741
  • ybock
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Attached are the simulated total displacement waveform data from the California Real Time Network (CRTN) for the ShakeOut test. -- Yehuda
  • ybock
    2008.11.13-Great Southern California ShakeOut   13 years 39 weeks ago
    Attached are the simulated total displacement waveform data from the California Real Time Network (CRTN) for the ShakeOut test. -- Yehuda
  • beroza
    ShakeOut Response Planning - Seismology Group   13 years 40 weeks ago
    I will take care of the IRIS RAMP request, and keep you posted.
  • nking
    ShakeOut Response Planning - Geodesy Group   13 years 40 weeks ago
    Here are predicted GPS displacements at all southern California GPS stations.
  • tjordan
    2008.11.13-Great Southern California ShakeOut   13 years 40 weeks ago
    Greg et al. I've sent the following message to NSF requesting authorization for eqk response activities. I let you know if I hear anything. On Nov 13, 2008, at 10:29 AM, Thomas Jordan wrote: Kaye et al., We have just had a major earthquake in Southern California on the southern San Andreas (M~7.8). Very bad situation here in downtown LA; all hell breaking loose! We're trying to coordinate the SCEC response (conf call scheduled for 11:15 am at 218-936-7979, access #565853). We will try to get resources in the field asap. Can we get authorization from NSF to use committed funds for this purpose? What's the possibility to get additional funds authorized? To participate in our discussions, call in or log into scec.usc.edu/eqresponse/. Cheers, Tom
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 40 weeks ago
    All of the spaces in the original ascii representation of the focal mechanism were eliminated and it got left justified. That's why it looks bizarre, but it is indeed strike-slip, consistent with it being right-lateral and on the San Andreas Fault.
  • hough
    ShakeOut Response Planning - Seismology Group   13 years 40 weeks ago
    The Menlo group is taking inventory of portables and will report in shortly re: plans for deployments. Any updates re: SCEC plans or RAMP requests? Please post here or call me: 626-583-7224 (office) or 626-429-1533 (cell.) Sue
  • beroza
    2008.11.13-Great Southern California ShakeOut   13 years 40 weeks ago
    Egill Hauksson is tied up. I've been unable to reach Jamie Steidl, but left a message on his cell phone (he may be in the field). I was unable to reach Elizabeth too (she may also be in the field). So, for the time being, I will act as coordinator for the seismology response. Greg