Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4100
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dc.contributor.authorallDe Martini, P. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallValensise, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.date.accessioned2008-10-01T13:37:00Zen
dc.date.available2008-10-01T13:37:00Zen
dc.date.issued1999-07-01en
dc.identifier.urihttp://hdl.handle.net/2122/4100en
dc.description.abstractWe studied 1951-1992 elevation changes recorded by a first order leveling line that intercepts the surface projection of the 26 Sep. 1997, Mw 6.0, Umbria-Marche earthquake causative fault. The line documents 1951-1992 localized subsidence along a 12 km section above the fault. We calculated the expected 1997 coseismic elevation changes along the line using standard dislocation modeling and found that their trend has an amplitude three times larger than the trend of the observed pre-1997 signal but with a similar shape. We suggest that this signal is the result of 10 cm of pre-1992 slip along the northernmost 5 km of the 1997 earthquake fault, where coseismic slip was found to be less than the average estimated for the entire fault. This result implies unusually fast slip along this section of the fault and may suggest slip acceleration in preparation for the impending failure.en
dc.language.isoEnglishen
dc.publisher.nameAGUen
dc.relation.ispartofGeophysical Research Lettersen
dc.relation.ispartofseries13 / 26 (1999)en
dc.subjectpre-seismic slipen
dc.subjectlevelingen
dc.subject1997 Umbria-Marche earthquakeen
dc.titlePre-seismic slip on the 26 September 1997, Umbria-Marche earthquake fault? Unexpected clues from the analysis of 1951-1992 elevation changesen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1953-1956en
dc.subject.INGV04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformationsen
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamicsen
dc.relation.referencesAGIP, Acque dolci sotterranee, inventario dei dati raccolti dall'AGIP durante la ricerca di idrocarburi in Italia (1971-1990), 524, 1994. Amato, A., et al., The 1997 Umbria-Marche, Italy, earthquake sequence: a first look at the main shocks and aftershocks, Geophys. Res. Lett., 25, 2861-2864, 1998. Bornford, G., Geodesy, Ox.[brd University Press, New York, 731, 1971. Boschi, E., G. Ferrari, P. Gasperini, E. Guidoboni, and G. Valensise, Catalogo dei forti terremoti in Italia dal 461 a. C. al 1990, volume 2, lstituto Nazionale di Geofisica, 643 pp., 1997. Brady, B.T., Theory of earthquakes; Part I: A scale indipendent theory of rock failure, Pure Appl. Geophys., 112, 701-715, 1974. Dieterich, J.H., Preseismic fault slip and earthquake prediction, J. Geophys. Res., 83, 3,940-3,948, 1978. Ekström, G., A. Morelli, E. Boschi, and A.M. Dziewonski, Moment tensor analysis of the central Italy earthquake sequence of September-October 1997, Geophys. Res. Lett., 25, 1971-1974, 1998. ENI, Acque dolci sotterranee, inventario dei dati raccolti dall'AGIP durante la ricerca di idrocarburi in Italia, 914, 1972. Mjachkin, V.I., W.F. Brace, G.A. Sobolev and J.H. Dieterich, Two Models for earthquake forerunners., Pageoph, 113, 169-181, 1975. Lin, J. and R.S. Stein, Coseismic folding, earthquake recurrence, and the 1987 source mechanism at Whittier Narrows, Los Angeles Basin, California, J. Geophys. Res., 94, 9,614-9,632, 1989. Pantosti, D., D.P. Schwartz and G. Valensise, Paleoseismology along the 1980 surface rupture of the Irpinia fault: implications for earthquake recurrence in the southern Apennines, Italy. J. Geophys. Res., 98, 6,561-6,577, 1993. Salvioni, G., Progetto della nuova rete altimetrica fondamentale (Livellazione di alta precisione), Bollettino di Geodesia e Scienze Affini, X, 3, 319-330, 1951. Salvioni, G., I movimenti del suolo nell'Italia centro-settentrionale, Bollettino di Geodesia e Scienze Affini, XVI, 3, 325-366, 1957. Stein, R.S., Discrimination of tectonic displacement from slope dependent errors in geodetic leveling from southern California, 1953- 1979, in: D.W. Simpson and P.G. Richards (eds), Earthquake Prediction: An International Review, Maurice Ewing Ser. vol. 4, 441- 456, American Geophysical Union, 1981. Stein, R.S., C.T. Whalen, S.R. Holdahl, W.E. Strange, and W. Thatcher, Saugus-Palmdale, California, field test for refraction error in historical leveling surveys, J. Geophys. Res., 91, 9,031-9,044, 1986. Stramondo, S., et al., The September 26, 1997 Colfiorito, Italy, earthquakes: modeled coseismic surface displacements from SAR interferometry and GPS, Geophys. Res. Lett., in press, 1999. Stuart, W.D., Diffusionless dilatancy model for earthquake precursors, Geophys. Res. Lett., 1,261-1,264, 1974. Stuart, W.D., Aging and strain softening model for episodic faulting, Tectonophysics, 5, 2 , 613-626, 1979. Torge, W., Geodesy, edited by Walter de Gruyter, Berlin, 1991.en
dc.description.obiettivoSpecifico3.2. Tettonica attivaen
dc.description.journalTypeN/A or not JCRen
dc.description.fulltextreserveden
dc.contributor.authorDe Martini, P. M.en
dc.contributor.authorValensise, G.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.orcid0000-0002-3598-5191-
crisitem.author.orcid0000-0001-7631-1903-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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