WP 1.3 Velocity and strain rate fields across the fault from integration of regional GPS networks

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DPC S5 - Test site Alto Tiberina fault. WP 1.3 Velocity and strain rate fields across the fault from integration of regional GPS networks. Resp. Nicola D’Agostino - PowerPoint PPT Presentation

Transcript of WP 1.3 Velocity and strain rate fields across the fault from integration of regional GPS networks

  • WP 1.3 Velocity and strain rate fields across the fault from integration of regional GPS networksResp. Nicola DAgostinoE. DAnastasio*, F. Criscuoli*, A. Avallone*, A. Memmolo*, F. Minichiello*, G. De Luca*, F. Migliari*, L. Mondiali*, F. Radicioni**, A. Stoppini**, G. Fastellini**

    * Istituto Nazionale di Geofisica e Vulcanologia, Centro Nazionale Terremoti** Dipartimento Ingegneria Civile ed Ambientale, Perugia (Labtopo)DPC S5 - Test site Alto Tiberina faultRoma, 24 marzo 2010

  • Objectivesintegrate GPS data from regional GPS networks

    homogeneous velocity field in terms of data processing and reference frame alignment

    distribution of the tectonic strain rate and the rate of strain accumulation of known active faults

  • Velocity field end of 2008After DAgostino et al., Tectonophysics, 2009

  • MURBoptimal siteDeep reinforced concrete pillar (5 m)

  • MVALOptimal site Wyatt/Agnew short drilled braced

  • MURB Vs. MVAL time seriesAntenna change due to lightning

  • Velocity field 2004 CGPS with age > 2.5 yrs

  • Velocity field today CGPS with age > 2.5 yrs

  • Strain rate from GPS(to be upgraded with increasing number of CGPS)After DAgostino et al., Tectonophysics, 2009

  • Range of geodetic Vs. seismic momentMw > 5.5 last 720 yearssum of geodetic strain rates for different seismogenic thicknessAfter DAgostino et al., Tectonophysics, 2009

  • Zoom on ATF zone 5 new installed CGPS stations4 new RING sites > 2.5 years old for ATF transect

    ATFO already active (since July 2009)

    4: monument is done, will start logging today

    + 1 (or 2) to be done

  • - Updated Time series of the ATF sites

    Updated GPS velocity field of the region in both ITRF05 and Eurasia reference frames

    Updated map of strain rates

    Updated geodetic moment rate at the ATF sitesFor the end of the project, we will provide:

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