Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/556
DC Field | Value | Language |
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dc.contributor.authorall | Collettini, C.; Geologia Strutturale e Geofisica, Universita` degli Studi di Perugia, Italy | en |
dc.contributor.authorall | Chiaraluce, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Pucci, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Barchi, M.; Geologia Strutturale e Geofisica, Universita` degli Studi di Perugia, Italy | en |
dc.contributor.authorall | Cocco, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2005-11-24T11:49:31Z | en |
dc.date.available | 2005-11-24T11:49:31Z | en |
dc.date.issued | 2005 | en |
dc.identifier.uri | http://hdl.handle.net/2122/556 | en |
dc.description.abstract | Abstract We investigate fault reactivation that occurred during the 1997 Colfiorito seismic sequence (central Italy), matching detailed structural geology, precise earthquake locations and mechanical models of fault interaction. The Colfiorito area, within the Northern Apennines, is characterised by a relatively recent inversion of the tectonic stress field from compression (late Miocene), to extension (late Pliocene– Quaternary). In September–October 1997 the area experienced a protracted seismic sequence consisting of six moderate magnitude earthquakes (5!Mw!6), that ruptured SW-dipping normal fault segments. The two main ruptures of the sequence show opposite directions of rupture propagation and are segmented by a strike-slip fault inherited from the compressional tectonic phase. Late in the sequence this strike-slip fault nucleated an MwZ4.3 event and an associated aftershock sequence, which we present as an example of reversal of fault slip direction. Plotting the strike-slip events on a detailed geological map, the left-lateral strike-slip fault imaged by aftershock distribution and focal mechanisms, strictly corresponds to the mapped N108 right-lateral strike-slip structure inherited from the compressional tectonic phase. The two different data-sets for this strike-slip fault show the same geometry but opposite kinematics. We analyse the coseismic elastic static stress changes due to the occurrence of the normal fault events in order to investigate the mechanical coupling and interaction between the NW–SE oriented normal fault system and the intervening N108 inherited fault. We show that the elastic stress perturbation increased on the shallow portion of the activated volume where the N108 structure is located, and promoted its reactivation with a strike-slip motion. The different amount of slip experienced along the two normal faults responsible for the greater mainshocks favoured the left-lateral strike-slip kinematics. | en |
dc.format.extent | 523194 bytes | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | English | en |
dc.relation.ispartof | Journal of Structural Geology | en |
dc.relation.ispartofseries | /27(2005) | en |
dc.subject | Fault zone; | en |
dc.subject | Apennines | en |
dc.subject | Reactivation | en |
dc.title | Looking at fault reactivation matching structural geology and seismological data | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | (937-942) | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution | en |
dc.identifier.doi | doi:10.1016/j.jsg.2004.10.016 | en |
dc.relation.references | References Barchi, M.R., Minelli, G., Pialli, G., 1998. The crop 03 profile: a synthesis of results on deep structures of the Northern Apennines. Memorie Societa` Geologica Italiana 52, 383–400. Barchi, M.R., Galadini, F., Lavecchia, G., Messina, P., Michetti, A.M., Peruzza, L., Pizzi, A., Tondi, E., Vittori, E., 2000. Sintesi sulle conoscenze delle faglie attive in Italia Centrale. Gruppo Nazionale per la Difesa dei Terremoti, GNDT, 62pp. Barchi, M.R., Pucci, S., Collettini, C., Mirabella, F., Massoli, D., Guazzetti, F., Reichenbach, P., Cardinali, M., Vergoni, N., Troiani, E., Chiraz, P., Giombini, L., 2001. A geological map of the Colfiorito area. Federazione Italiana Scienze della Terra (FIST) annual meeting, 2001 Chieti. Cello, G., Mazzoli, S., Tondi, E., Turco, E., 1997. Active tectonics in the Central Apennines and possible implications for seismic hazard analysis in Peninsular Italy. Tectonophysics 272, 43–68. Chiaraluce, L., Ellsworth, W.L., Chiarabba, C., Cocco, M., 2003. Imaging the complexity of an active normal fault system: the 1997 Colfiorito (Central Italy) case study. Journal of Geophysical Research 108 (B6), 2294. Chiaraluce, L., Barchi, M.A., Collettini, C., Mirabella, F., Pucci, S., 2005. Connecting seismically active normal faults with Quaternary geological structures in a complex extensional environment: the Colfiorito 1997 case history (Northern Apennines, Italy). Tectonics 24, TC1002, doi:10.1029/2004TC001627. Cocco, M., Nostro, C., Ekstrom, G., 2000. Static stress changes and fault interaction during the 1997 Umbria–Marche earthquake sequence. Journal of Seismology 4, 501–516. CPTI, Gruppo di Lavoro, 1999. Catalogo Parametrico dei Terremoti Italiani, Istituto Nazionale di Geofisica, Gruppo Nazionale per la Difesa dai Terremoti (GNDT), Storia Geofisica e Ambiente (SGA), Servizio Sismico Nazionale (SSN), Bologna, 92pp. Ekstro¨m, G., Morelli, A., Boschi, E., Dziewonski, A.M., 1998. Moment tensor analysis of the central Italy earthquake sequence of September– October 1997. Geophysical Research Letters 25, 1971–1974. Holdsworth, R.E., Butler, C.A., Roberts, A.M., 1997. The recognition of reactivation during continental deformation. Journal of the Geological Society, London 154, 73–78. King, G.C.P., Cocco, M., 2001. Fault interaction by elastic stress changes: new clues from earthquake sequences. Advanced in Geophysics 44, 1– 38. Lavecchia, G., Brozzetti, F., Barchi, M., Menichetti, M., Keller, J.V.A., 1994. Seismotectonic zoning in east-central Italy deduced from analysis of the Neogene to present deformations and related stress fields. Geological Society of America Bulletin 106, 1107–1120. Lavecchia, G., Minelli, G., Pialli, G., 1988. The Umbria–Marche arcuate fold belt (Italy). Tectonophysics 146, 125–137. Miller, S.A., Collettini, C., Chiaraluce, L., Cocco, M., Barchi, M., Boris, J.P.K., 2004. Aftershocks driver by a high-pressure CO2 source at depth. Nature 427, 724–727. Nostro, C., Cocco, M., Belardinelli, M.E., 1997. Static stress changes in extensional regimes: an application to southern Apennines (Italy). Bulletin Seismological Society of America 87, 234–248. Okada, Y., 1985. Surface deformation due to shear and tensile faults in half-space. Bulletin Seismological Society of America 75, 1135–1154. Okada, Y., 1992. Internal deformation due to shear and tensile faults in half-space. Bulletin Seismological Society of America 82, 1018–1040. Pino, N.A., Mazza, S., 1999. Rupture directivity of the major shocks in the 1997 Umbria–Marche (Central Italy) sequence from regional broadband waveforms. Geophysical Research Letters 26, 2101–2104. Salvi, S., Stramondo, S., Cocco, M., Tesauro, M., Hunstad, I., Anzidei, M., Briole, P., Baldi, P., Sansosti, E., Fornaio, G., Lanari, R., Doumaz, F., Pesci, A., Galvani, A., 2000. Modeling coseismic displacements resulting from SAR interferometry and GPS measurements during the 1997 Umbria–Marche seismic sequence. Journal of Seismology 4, 479– 499. Scholz, C.H., 1998. Earthquakes and friction laws. Nature 391, 37–42. Sibson, R.H., 1990. Rupture nucleation on unfavourably oriented faults. Bulletin Seismological Society of America 80, 1580–1604. Stein, R.S., 1999. The role of stress transfer in earthquake triggering. Nature 402, 605–609. Tavarnelli, E., 1999. Normal faults in thrust sheets: pre-orogenic extension, post-orogenic extension, or both? Journal of Structural Geology 21, 1011–1018. Waldhauser, F., Ellsworth, W.L., 2000. A double-difference earthquake location algorithm: method and application to the Northern Hayward Fault, California. Bulletin Seismological Society of America 90, 1353– 1368. | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Collettini, C. | en |
dc.contributor.author | Chiaraluce, L. | en |
dc.contributor.author | Pucci, S. | en |
dc.contributor.author | Barchi, M. | en |
dc.contributor.author | Cocco, M. | en |
dc.contributor.department | Geologia Strutturale e Geofisica, Universita` degli Studi di Perugia, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Geologia Strutturale e Geofisica, Universita` degli Studi di Perugia, Italy | 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 | Università La Sapienza | - |
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 | Università degli studi di Perugia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-9697-6504 | - |
crisitem.author.orcid | 0000-0002-3557-2936 | - |
crisitem.author.orcid | 0000-0003-0431-4341 | - |
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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