Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3135
DC Field | Value | Language |
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dc.contributor.authorall | Piatanesi, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Cirella, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Spudich, P.; US Geological Survey, Menlo Park, CA, USA. | en |
dc.contributor.authorall | Cocco, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2007-12-12T15:33:54Z | en |
dc.date.available | 2007-12-12T15:33:54Z | en |
dc.date.issued | 2007-07-18 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3135 | en |
dc.description.abstract | We present a two-stage nonlinear technique to invert strong motions records and geodetic data to retrieve the rupture history of an earthquake on a finite fault. To account for the actual rupture complexity, the fault parameters are spatially variable peak slip velocity, slip direction, rupture time and risetime. The unknown parameters are given at the nodes of the subfaults, whereas the parameters within a subfault are allowed to vary through a bilinear interpolation of the nodal values. The forward modeling is performed with a discrete wave number technique, whose Green’s functions include the complete response of the vertically varying Earth structure. During the first stage, an algorithm based on the heat-bath simulated annealing generates an ensemble of models that efficiently sample the good data-fitting regions of parameter space. In the second stage (appraisal), the algorithm performs a statistical analysis of the model ensemble and computes a weighted mean model and its standard deviation. This technique, rather than simply looking at the best model, extracts the most stable features of the earthquake rupture that are consistent with the data and gives an estimate of the variability of each model parameter. We present some synthetic tests to show the effectiveness of the method and its robustness to uncertainty of the adopted crustal model. Finally, we apply this inverse technique to the well recorded 2000 western Tottori, Japan, earthquake (Mw 6.6); we confirm that the rupture process is characterized by large slip (3-4 m) at very shallow depths but, differently from previous studies, we imaged a new slip patch (2-2.5 m) located deeper, between 14 and 18 km depth. | en |
dc.language.iso | English | en |
dc.publisher.name | AGU | en |
dc.relation.ispartof | Journal of Geophysical Research | en |
dc.relation.ispartofseries | /112(2007) | en |
dc.subject | earthquake | en |
dc.subject | kinematic | en |
dc.subject | finite fault | en |
dc.subject | inversion | en |
dc.subject | source mechanics | en |
dc.subject | waveform | en |
dc.title | A global search inversion for earthquake kinematic rupture history: Application to the 2000 western Tottori, Japan earthquake | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | B07314 | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics | en |
dc.identifier.doi | 10.1029/2006JB004821 | en |
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(1980), The DeHoop-Knopoff representation theorem as a linear inversion problem, Geophys. Res. Lett., 9, 717– 720. Spudich, P., and D. P. Miller (1990), Seismic site effects and the spatial interpolation of earthquake seismograms: Results using aftershocks of the 1986 North Palm Springs, California, earthquake, Bull. Seismol. Soc. Am., 80(6), 1504– 1532. Spudich, P., and L. Xu (2003), Software for calculating earthquake ground motions from finite faults in vertically varying media, in International Handbook of Earthquake and Engineering Seismology, Academic Press. Tinti, E., E. Fukuyama, A. Piatanesi, and M. Cocco (2005), A kinematic source time function compatible with earthquake dynamics, Bull. Seismol. Soc. Am., 95(4), 1211 – 1223, doi:10.1785/0120040177. Wald, D. J., and R. W. Graves (2001), Resolution analysis of finite source inversion using one- and three-dimensional Green’s functions: 2. Combining seismic and geodetic data, J. Geophys. Res., 106(B5), 8767– 8788. 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dc.description.obiettivoSpecifico | 3.1. Fisica dei terremoti | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | partially_open | en |
dc.contributor.author | Piatanesi, A. | en |
dc.contributor.author | Cirella, A. | en |
dc.contributor.author | Spudich, P. | 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 | US Geological Survey, Menlo Park, CA, USA. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
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 ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | USGS, Menlo Park, CA, USA | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0003-2863-3662 | - |
crisitem.author.orcid | 0000-0002-4144-3794 | - |
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 | - |
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2007_JGR_rpi_inversion.pdf | main article | 3.8 MB | Adobe PDF | |
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