Log in to view full website content, join discussions, and to post information.

Recent comments

  • Turkey earthquake response - 3rd conference call Friday Novembe
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 24 weeks ago

    On 11/3/11 4:04 PM, John R Filson wrote:

    Colleagues,

    There will be a third and final (planned) conference call on Friday, November 4, 2011, to exchange information on results so far and on plans to deploy teams in response to the recent earthquake in eastern Turkey.

    Times: 1 PM EDT Noon CDT 11 AM MDT 10 AM PDT

    Dial in numbers: 703-648-4848 Toll free: 855-547-8255
    Security code: 11614#

    We'll try to keep the call to one hour or less. Any and all interested parties are welcome to participate.

    John

    John R. Filson
    Acting Program Coordinator
    Earthquake Hazards
    U. S. Geological Survey
    MS 905 Reston, Virginia 20192
    Phone: 703-648-6785
    Cell: 703-851-0383

  • COSMO-SkyMed SAR pixel offsets map
    fielding
    2011.10.23 - M7.2 Eastern Turkey   12 years 25 weeks ago

    I attach a Google Earth .kmz file for a map of the range (line-of-sight) pixel offsets from COSMO-SkyMed. The .kmz and an image made from it are also posted at the GEO Supersite http://supersites.earthobservations.org/van.php#Fri2

    Caption: COSMO-SkyMed (CSK) SAR pixel offsets (sub-pixel correlation) map of displacements in the radar line-of-sight (28 degrees from vertical and roughly west). Derived from CSK scenes acquired 2011/10/10 and 2011/10/26. Color wrap 1.5 m. Processed by Eric Fielding of the JPL-Caltech ARIA project. COSMO-SkyMed original data are copyright 2011 Italian Space Agency (ASI) and were provided under the ASI CSK AO PI project 2271.

  • latest slip distribution results
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 25 weeks ago

    On 10/28/11 10:18 AM, Gavin Hayes wrote:

    All,

    Attached is a map and cross-sections of my latest slip distribution results; Eric Bergman's relocations (red); and Turkey's aftershock locations (yellow). Cross-sections are taken perpendicular to WCMT planes. The slip distribution is pinned to an early hypocenter relocation from Eric, and a depth of 16 km.

    All the best,

    Gavin

  • HDDS Updates for Turkey Earthquake (28 Oct 2011)
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 25 weeks ago

    On 10/28/11 6:42 AM, Rynn Lamb wrote:

    http://hdds.usgs.gov/hdds2/
    - All HDDS data available through Graphical Viewer

    http://hdds.usgs.gov/hdds2/feed/subscribe
    - RSS history of recent event data published
    - Requires login for restricted imagery


    TURKEY EARTHQUAKE

    http://hdds.usgs.gov/hdds2/feed/rss?event=201110_Earthquake_Turkey
    - HDDS2 RSS feed

    http://hdds.usgs.gov/hdds2/pub/data/disaster/201110_Earthquake_Turkey/data/

    MAP_PRODUCTS folder
    - posted (ad-hoc) DLR assessment maps ( 10/26/11 )

    https://hdds.usgs.gov/hdds2/disaster_restricted/201110_Earthquake_Turkey...

    IKONOS_NGA folder
    - published 15 images ( 10/26/11 )

    GEOEYE_NGA folder
    - published 80 images ( 10/27/11 )

    QUICKBIRD_NGA folder
    - published 15 images ( 10/25/11 )

    WORLDVIEW_NGA folder
    - published 169 images ( 10/25/11, 10/26/11 )

    SATELLITE/NATIVE folder
    - posted (ad-hoc) original imagery

    http://hdds.usgs.gov/hdds2/pub/data/disaster/201110_Earthquake_Turkey/br...
    - browse available

    http://hdds.usgs.gov/hdds2/pub/data/disaster/201110_Earthquake_Turkey/sh...
    - shape files available

     

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Rynn M. Lamb
    Disaster Response Coordinator
    USGS/EROS
    47914 252nd Street
    Sioux Falls, SD 57198
    Ph: 605-594-6958 (office)
    Fax: 605-594-6150 (office)
    Email: lamb@usgs.gov
    EMERGENCIES: 605-496-4925 (cell)

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  • COSMO-SkyMed interferogram
    fielding
    2011.10.23 - M7.2 Eastern Turkey   12 years 25 weeks ago
    I received this message from e-GEOS, the commercial data distributor for COSMO-SkyMed: ===== A 4 satellite constellation such as COSMO-SkyMed, offering unmatched revisit and imagery with variable sizes and resolutions, is ideal in emergency response situations such as the recent earthquake in Turkey. Check our web pages for additional information and work done by our team: http://www.e-geos.it/ Turkey Earthquake http://www.e-geos.it/news/11-10-26-turkey/Van_earthquake.pdf Please feel free to contact us for additional information. Luciana Di Domenico ****************************** Luciana Di Domenico e-GEOS SpA COSMO-SkyMed International Sales ph +39 06 40694224 cel +39 335 1448173 www.e-geos.it ****************************** ======== Their InSAR processing looks excellent, but their interpretations should be read with a grain of salt.
  • surface rupture found
    sakciz
    2011.10.23 - M7.2 Eastern Turkey   12 years 25 weeks ago
    I received a verr brief message this morning. field parties have located surface rupture. rupture is about 10 km long and fault plane is dipping to the N. Finding out the exact location might take a while.
  • new report from one of the turkish EQ authorities
    sakciz
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    Attached is an updated earthquake report from one of the turkish earthquake authorities. we have many... http://www.deprem.gov.tr/sarbis/Shared/Anasayfa.aspx report is in Turkish, but figures and tables should be easy to follow. if you need any quick translations, please email me.

  • HDDS Updates for Turkey Earthquake (26 Oct 2011)
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/26/11 9:57 AM, Rynn Lamb wrote:

    http://hdds.usgs.gov/hdds2/
    - All HDDS data available through Graphical Viewer

    http://hdds.usgs.gov/hdds2/feed/subscribe
    - RSS history of recent event data published
    - Requires login for restricted imagery


    TURKEY EARTHQUAKE

    http://hdds.usgs.gov/hdds2/feed/rss?event=201110_Earthquake_Turkey
    - HDDS2 RSS feed

    http://hdds.usgs.gov/hdds2/pub/data/disaster/201110_Earthquake_Turkey/data/

    LANDSAT_TM_USGS folder
    - published 2 images ( 06/17/11 )

    SATELLITE/NON_INGESTED/ASTER folder
    - posted (ad-hoc) 9 images ( 08/30/06, 10/16/09, 09/10/10, 07/18/11 )

    https://hdds.usgs.gov/hdds2/disaster_restricted/201110_Earthquake_Turkey...

    WORLDVIEW_NGA folder
    - published 56 images ( 10/25/11 )

    http://hdds.usgs.gov/hdds2/pub/data/disaster/201110_Earthquake_Turkey/br...
    - browse available

    http://hdds.usgs.gov/hdds2/pub/data/disaster/201110_Earthquake_Turkey/sh...
    - shape files available


    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Rynn M. Lamb
    Disaster Response Coordinator
    USGS/EROS
    47914 252nd Street
    Sioux Falls, SD 57198
    Ph: 605-594-6958 (office)
    Fax: 605-594-6150 (office)
    Email: lamb@usgs.gov
    EMERGENCIES: 605-496-4925 (cell)

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  • video link
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/26/11 8:50 AM, Mehmet Celebi wrote:


    John and all:

    Here is a link to a video put out by a Turkish paper: http://video.haberturk.com/haber/video/deprem-bolgesi-havadan-goruntulen....

    It gives an idea about a large town (I suspect VAN....it has grown since I have been there) and types and inventory of structures there, sporadic damage in towns and destruction of some rural villages. In a few days, the area will most likely be covered with snow.

    Tom (Holzer): approximately 60 % into the video, it appears there is a pool of water/liquified sand next to a tall (5-7 story) building. I may be wrong.

    Marjorie and Tran: If you wish to provide this link to your EQ sites.

     

    ****************************************************************************
    Dr. Mehmet Celebi, P.E.
    Senior Research Civil Engineer and
    Manager, Structural Monitoring
    USGS (MS977)
    345 Middlefield Rd.
    Menlo Park, Ca. 94025
    Tel:650-329-5623
    Fax:650-329-5143
    e-mail: celebi@usgs.gov

    **************************************************************************

  • Turkey earthquake studies coordination - 2nd conference call
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/26/11 7:35 AM, John R Filson wrote:

    Colleagues,

    There will be a conference call on Friday, October 28, 2011, to exchange information and coordinate our response to the recent earthquake in eastern Turkey.

    Times: 1 PM EDT Noon CDT 11 AM MDT 10 AM PDT

    Dial in numbers: 703-648-4848 Toll free: 855-547-8255
    Security code: 11614#

    We'll try to keep the call to one hour or less. Any and all interested parties are welcome to participate. I apologize for the interruption in the call in mid-meeting last Monday.

    Regards,

    John R. Filson
    Acting Program Coordinator
    Earthquake Hazards
    U. S. Geological Survey
    MS 905 Reston, Virginia 20192
    Phone: 703-648-6785
    Cell: 703-851-0383

  • Turkey has requested humanitarian assistance
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/26/11 6:03 AM, Gari C Mayberry wrote:

    FYI... Turkey has requested humanitarian assistance from the US and other countries. USAID/OFDA will likely respond be providing funds to the Embassy that will used by a local non-governmental organization for the purchase and distribution of emergency goods. I have not heard of any formal requests for technical assistance.

    Cheers,
    Gari


    *****************************
    Gari Mayberry
    OFDA-USGS Geoscience Advisor
    USAID/ Office of US Foreign Disaster Assistance (OFDA)
    1300 Pennsylvania Avenue, NW 8.7.88
    Washington, DC, 20523
    Phone: 202.712.0692
    Fax: 202.216.3706

  • Van Supersite page now has Envisat pre-quake data
    fielding
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago
    Envisat data acquired over the area around Van in the last year has been loaded into the virtual archive at the GEO Supersites page for Van. The virtual archive directory is linked from the Supersite page. You will need to get a "Supersites user" account from the European Space Agency Earth Observation Help Desk to have access to the data downloads. Write to to request an account. Prof. Semih Ergintav has agreed to serve as science leader for the Van Supersite. Several other images have been posted.
  • EERI Clearinghouse up
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/25/11 4:17 PM, Marjorie Greene wrote:

    Also just to let everyone know that the EERI clearinghouse for this event is up at http://www.eqclearinghouse.org/2011-10-23-eastern-turkey/
    We welcome anyone to add a post—you can request a log in at the bottom right of the screen, or send mariana@eeri.org any information that you would like posted.
    We've posted a link to strong motion records from METU. An EERI/METU team will be in the field in a few days and will then hopefully be posting up observations to the clearinghouse site.

    Marjorie

    Marjorie Greene, AICP
    Special Projects Manager
    Earthquake Engineering Research Institute
    499 14th St., Suite 320
    Oakland, CA 94612-1934
    tel: 510 (451-0905)
    fax 510 (451-5411)
    www.eeri.org

  • HDDS Updates for Turkey Earthquake (25 Oct 2011)
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/25/11 3:59 PM, Rynn Lamb wrote:

    All,

    Below are the recent HDDS entries for the Turkey Earthquake event.

    If anyone has questions or would like to be removed from this list, please let me know.

    Best regards,
    Rynn

    ---------------------------------------

    http://hdds.usgs.gov/hdds2/
    - All HDDS data available through Graphical Viewer
    - Event ID: 201110_Earthquake_Turkey

    http://hdds.usgs.gov/hdds2/feed/subscribe
    - RSS history of recent event data published
    - Requires login for restricted imagery


    TURKEY EARTHQUAKE

    http://eoportal.cr.usgs.gov/hdds2/feed/rss?event=201110_Earthquake_Turkey
    - HDDS2 RSS feed

    IKONOS
    - published 4 images (9 Oct 2011)

    LANDSAT 5 TM
    - published 3 images (12 Sep, 21 Sep 2011)

    SPOT-5
    - published 10 images (1 Aug 2011)

    WORLDVIEW-1
    - published 12 images (4 Oct 2011)

    WORLDVIEW-2
    - published 225 images (27 June, 24 June, 17 May, 6 May 2011)


    PUBLIC AD-HOC:

    DATA/MAP PRODUCTS
    - DLR ZKI Reference Maps

    DATA/SATELLITE/NON_INGESTED
    - ASTER GDEM V2

    DOCS_MISC
    - 1976_Report (Engineering Report on the Muradiye Caldiran)


    RESTRICTED AD-HOC:

    SATELLITE/NATIVE
    - posted original (pre-ingested) imagery: IKONOS, SPOT_DOD, WORLDVIEW-1, WORLDVIEW-2

    SATELLITE/NON_INGESTED
    - posted SPOT_DOD LEVEL 1A (raw) imagery

     

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Rynn M. Lamb
    Disaster Response Coordinator
    USGS/EROS
    47914 252nd Street
    Sioux Falls, SD 57198
    Ph: 605-594-6958 (office)
    Fax: 605-594-6150 (office)
    Email: lamb@usgs.gov
    EMERGENCIES: 605-496-4925 (cell)

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  • Fault plane
    mfloyd
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago
    From the published GPS, the lake region looks to be an area of contraction and right-lateral shear: Reilinger et al (2006, Figure 9) model a block boundary just to the north of the lake as having right-lateral slip rate of 11.9 +- 0.4 mm/yr and contractional slip rate of 3.0 +- 0.4 mm/yr. This being the case, and given Gavin's finite fault model showing a significant strike-slip component to the slip as might be expected, it may well be that the most likely plane is the south-dipping one ("Plane 1" in Gavin's solution), which shows oblique right-lateral thrust, as long as this event is behaving according to the observed regional tectonics.
  • 1976 (M7,2 earthquake report in English)
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    On 10/24/11 6:43 PM, Mehmet Celebi wrote:

    John and all:

    During the conference call today, there was discussion/inquiries about surface rupture and that also during the 1976 Caldiran EQ (M7.2). I mentioned of a report from that era (I am one of the authors). I am attaching this report. Scarp pictures/info are on page 42 and other pages. [Please note that this report is 35 years old and was most likely typed on the good old typerwiters and drafting by hand.
     

    I am also copying it to Jay and Marjorie of EERI if they desire to put it in the Clearinghouse site. and also to Carol Prentice as she expressed interest. I hope Tran can put it in SCEC site.
     

    Hope it is useful.

    ****************************************************************************
    > Dr. Mehmet Celebi, P.E.
    > Senior Research Civil Engineer and
    > Manager, Structural Monitoring
    > USGS (MS977)
    > 345 Middlefield Rd.
    > Menlo Park, Ca. 94025
    > Tel:650-329-5623
    > Fax:650-329-5143
    > e-mail: celebi@usgs.gov
     **************************************************************************
     

  • Up-dip edge - more scarps
    hudnut
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    At the projected up-dip edge of the south-dipping plane of the W-Phase MT (as described in Gavin Hayes's finite-fault model page), there are definitely active-looking fault scarps there, too. There are many un-mapped yet active-looking structures, and much uncertainty still in the depth and orientation of the rupture plane, so it is a tough search for the causal fault without guidance from imagery or aerial reconnaissance. Attached are KML's of scarps along the up-dip projection. These are near the damaged city of Ercis. Proximity to the up-dip edge and faulting is only suggested and has certainly not been confirmed in any way, but could it help to explain the damage in Ercis?

     

    Here is Gavin's model: http://earthquake.usgs.gov/earthquakes/eqinthenews/2011/usb0006bqc/finit...

  • Additional field parties have
    sakciz
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago
    Additional field parties have arrived Van. Surface rupture hunting will continue more extensively tomorrow. We may be looking at rupture along the shallowly N-dipping blind thrust fault. This may explain the wide zone of aftershocks N of the epicenter...
  • preliminary report from MTA (Turkey)
    sakciz
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    Attached is a preliminary report made available by the General Directorate of Mineral Research and Exploration. Thi organization is similar to USGS. Text is in Turkish, but figures should be self explanatory. Same group also had a full day in the field today and reported no surface rupture. I could not find out where they actually checked, yet.

  • Local GPS
    mfloyd
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    For everyone's information, attached is a figure showing the (potential) availability of continuous GPS sites in the vicinity of the earthquake that are part of the CORS network (cors_tr_GPS.pdf).

    Also attached is a published figure showing the survey sites and inter-seismic velocities already established (e_turk_vels.pdf).

    We are in touch with our Turkish colleagues regarding rapid access to this CORS data and the likelihood of post-seismic surveys. As one can appreciate, this area is fairly remote from central and western Turkey, so we will see what they can manage.

    Mike Floyd / Rob Reilinger

  • Supersite page for Van earthquake created
    fielding
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago
    There is now a GEO Supersites "Other Events" page for the Van earthquake at http://supersites.earthobservations.org/van.php and Envisat SAR data products from the archive and new acquisitions should be posted there when they are delivered. The Supersites Advisory Committee agreed that this event did not quite meet the criteria for a full Event Supersite.
  • Coordination Call Today
    eqadmin
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    Colleagues,

    There will be a conference call today for the purpose of information exchange and coordination of studies regarding yesterday's earthquake in eastern Turkey.

    Times:        2 PM EDT        Noon MDT        11 AM PDT        Monday, 24 October 2011

    Numbers:        703-648-4848        Toll free:  855-547-8255
    Security code:        11614

    I anticipate the call will last no more than one hour.  Any and all interested parties are welcome to participate.

    Regards,

    John

    John R. Filson                                      
    Acting Program Coordinator
    Earthquake Hazards
    U. S. Geological Survey                                
    MS 905 Reston, Virginia 20192
    Phone:  703-648-6785
    Cell:  703-851-0383

  • Hi Ken, Yes, that whole set
    dolan
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago
    Hi Ken, Yes, that whole set of folds and scarps to the southeast is also quite prominent. Clearly at least a couple of active fold-thrust systems extending east-west through the epicentral area. It will be most interesting to see if any of those folds grew co-seismically. Given the proximity of these features to a large numbers of towns, it seems likely that we'll be able to tell from eye-witness reports as things progress. Keep us posted if you hear anything about who might be headed over to Turkey in coming days. James
  • Reply to James Dolan's 4:21 p.m. PDT note
    hudnut
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago
    Yes, the prominent scarp you mention is the same one I observed scarps along this morning (from Ariva-Tevekli to Kasimoglu-Satibey) during e-mail exchanges with Sinan Akciz and Tom Rockwell. Tom observed features along another lineament farther southeast in the next valley to the south. At this point, yes, the emphasis is shifting north as we see that the regional and local network locations are about 19 km to the NW of the initial teleseismic location from NEIC. I have not heard of anyone planning to go to the field; Sinan will probably report on that later.
  • Here are a few GoogleEarth
    dolan
    2011.10.23 - M7.2 Eastern Turkey   12 years 26 weeks ago

    Here are a few GoogleEarth screen captures showing the scarps I mentioned in previous message. James