Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3376
DC Field | Value | Language |
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dc.contributor.authorall | Cirella, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Tinti, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Piatanesi, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Cocco, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2007-12-14T15:44:18Z | en |
dc.date.available | 2007-12-14T15:44:18Z | en |
dc.date.issued | 2007-09-02 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3376 | en |
dc.description.abstract | Earthquake kinematic models are often used to retrieve the main parameters of the causative dynamic rupture process. These models are usually obtained through the inversion of seismograms and geodetic data and they can be used as boundary conditions in dynamic modeling to calculate the traction evolution on the fault. Once traction and slip time histories are inferred at each point on the fault plane, it is feasible to estimate the dynamic and breakdown stress drop, the strength excess and the slip weakening distance (Dc). However the measure of these quantities can be biased by the adopted parametrization of kinematic source models. In this work we focus our attention on the importance of adopting source time functions (STFs) compatible with earthquake dynamics to image the kinematic rupture history on a finite fault. First, we compute synthetic waveforms, through a forward modeling, to evaluate the effects of STFs on the ground motion and on the radiated energy. Therefore, adopting different STFs, we perform kinematic inversion of strong motion and GPS data, using a new non linear two-stages search algorithm (Piatanesi et al., 2007) . We have quantitatively verified that the chioce of STFs affects ground motion time histories within the frequency band commonly used in kinematic inversion and that the inferred peak slip velocity and rise time strongly change among the inverted models. These differences has a dramatic impact when kinematic models are used to infer dynamic traction evolution. The shape of the slip weakening curve, the ratio between Dc and the final slip and the dynamic stress drop distribution are remarkably affected by the assumed STFs. We recommend the adoption in kinematic inversions of source time functions that are compatible with earthquake dynamics. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Numerical Modeling of Earthquake Source Dynamics | en |
dc.subject | Earthquake dynamics and mechanics | en |
dc.subject | earthquake source modeling | en |
dc.title | Using geophysical data inversion to constrain earthquake dynamics: a study on dynamically consistent source time functions. | en |
dc.type | Poster session | en |
dc.description.status | Unpublished | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution | en |
dc.description.ConferenceLocation | Smolenice Castle - Bratislava Slovak Republic | en |
dc.relation.references | Boatwright, J., A.Venkataraman, K.Mayeda, G.L. Choy and M. Cocco: Radiated seismic energy and mean square source spectral comparison for large earthquakes. AGU Fall Meeting 2005, San Francisco. Festa, G. and A.Zollo (2006): Fault slip and rupture velocity inversion by isochrone backprojection, Geophys. J. Int, 166, doi: 10.101111/j.1365-246X.2006.03045.x. Piatanesi, A., A. Cirella, P. Spudich, P. and M.Cocco (2007): A global search inversion for earthquake kinematic rupture history: Application to 2000 Western Tottori, Japan earthquake., J. Geophys.Res., 112, B07314, doi: 10.1029/2006JB004821. Pulido, N. and T. Kubo (2004), Near-fault strong motion complexity of the 2000 Tottori earthquake (Japan) from a broadband source asperity model, Tectonophysics, 390, 177-192. Semmane, F., F. Cotton, and M.Campillo (2005), The 2000 Tottori earthquake: A shallow earthquake with no surface rupture and slip properties controlled by depth, J. Geophys.Res., 110, B03306, doi: 10.1029/2004JB003194. Spudich, P. and L. Xu (2002), Software for calculating earthquake ground motions from finite faults in vertically varying media, in International Handbook of Earthquake and Engineering Seismology, Acad. Press. Tinti, E., Fukuyama E., A. Piatanesi and M.Cocco (2005a): A kinematic source time function compatible with earthquake dynamics. BSSA, 95(4), 1211-1223, doi:10.1785/0120040177. Tinti, E., Spudich P. and M. Cocco (2005b): Earthquake fracture energy inferred from kinematic rupture models on extend faults, J. Geophys.Res., 110, B12303, doi: 10.1029/2005JB003644. | en |
dc.description.obiettivoSpecifico | 3.1. Fisica dei terremoti | en |
dc.description.fulltext | open | en |
dc.contributor.author | Cirella, A. | en |
dc.contributor.author | Tinti, E. | en |
dc.contributor.author | Piatanesi, A. | en |
dc.contributor.author | Cocco, M. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | Poster session | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-4144-3794 | - |
crisitem.author.orcid | 0000-0002-6942-3592 | - |
crisitem.author.orcid | 0000-0003-2863-3662 | - |
crisitem.author.orcid | 0000-0001-6798-4225 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
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File | Description | Size | Format | |
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poster_NMSED07_v3.pdf | poster pdf | 6.12 MB | Adobe PDF | View/Open |
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