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  • 1
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    Evidence of instantaneous dynamic triggering during the seismic sequence of year 2000 in south Iceland (2006)
    In:  J. Geophys. Res., Amsterdam, Elsevier Scientific Publishing Company, vol. 111, no. B3, pp. 85-90, pp. B03302
    Details
    Publikationsdatum: 2006
    Schlagwort(e): Stress ; Modelling ; Earthquake ; Seismicity ; Coulomb ; JGR ; early ; events ; remote ; triggering ; rate- ; and ; state-dependent ; friction ; effective ; normal ; stress ; 7215 ; Seismology: ; Earthquake ; source ; observations ; (1240) ; 7223 ; Earthquake ; interaction, ; forecasting, ; and ; prediction ; (1217, ; 1242) ; 7230 ; Seismicity ; and ; tectonics ; (1207, ; 1217, ; 1240, ; 1242)
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    BIBLIOGRAFIE SEISMOLOGIE
  • 2
    facet.materialart.
    Unbekannt
    Emergenza “L’Aquila2009”: la campagna di acquisizione dati della Rete Sismica Mobile stand-alone del Centro Nazionale Terremoti (2010)
    Details
    Publikationsdatum: 2021-06-08
    Beschreibung: Il 6 aprile 2009 (3.32 locali) un terremoto di Mw 6,3 ha colpito la regione Abruzzo (Italia centrale) producendo un enorme danno alla città de L'Aquila e ai paesi limitrofi causando circa 300 morti e 60.000 senza fissa dimora. A seguito di questo evento sismico, la struttura di Pronto Intervento dell’INGV (Istituto Nazionale di Geofisica e Vulcanologia), si è rapidamente attivata installando in area epicentrale due reti sismiche temporanee (Re.Mo.Tel. in real-time e Re.Mo. in stand-alone) ed il Centro Operativo Emergenza Sismica. In questo lavoro presentiamo come si e’ svolta la campagna sismica della Re.Mo., avente l’obiettivo di acquisire dati di alta qualità e dettaglio per studiare le sorgenti sismiche, l’evoluzione spazio temporale della sequenza e caratterizzare attraverso la microsismicita’ le strutture di faglia attivate ed le proprieta’ del mezzo circostante. Saranno descritte nel dettaglio l’installazione compiuta a poche ore dal mainshock, il suo sviluppo legato all’evoluzione della sequenza sismica, fino alla sua dismissione nel Marzo 2010.
    Beschreibung: Istituto Nazionale di Geofisica e Vulcanologia
    Beschreibung: Published
    Beschreibung: 1.1. TTC - Monitoraggio sismico del territorio nazionale
    Beschreibung: open
    Schlagwort(e): Instruments and techniques ; Seismic monitoring ; Emergency ; 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: report
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 3
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    Unbekannt
    Near-field propagation of tsunamis from megathrust earthquakes (2007)
    AGU
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: We investigate controls on tsunami generation and propagation in the near-field of great megathrust earthquakes using a series of numerical simulations of subduction and tsunamigenesis on the Sumatran forearc. The Sunda megathrust here is advanced in its seismic cycle and may be ready for another great earthquake. We calculate the seafloor displacements and tsunami wave heights for about 100 complex earthquake ruptures whose synthesis was informed by reference to geodetic and stress accumulation studies. Remarkably, results show that, for any near-field location: (1) the timing of tsunami inundation is independent of slipdistribution on the earthquake or even of its magnitude, and (2) the maximum wave height is directly proportional to the vertical coseismic displacement experienced at that location. Both observations are explained by the dominance of long wavelength crustal flexure in near-field tsunamigenesis. The results show, for the first time, that a single estimate of vertical coseismic displacement might provide a reliable short-term forecast of the maximum height of tsunami waves.
    Beschreibung: Published
    Beschreibung: L14316
    Beschreibung: 3.1. Fisica dei terremoti
    Beschreibung: JCR Journal
    Beschreibung: partially_open
    Schlagwort(e): Sumatra ; earthquake ; tsunami ; megathrust ; hazard ; forecasting ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 4
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    Tsunami threat in the Indian Ocean from a future megathrust earthquake west of Sumatra (2007)
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: Several independent indicators imply a high probability of a great (MN8) earthquake rupture of the subduction megathrust 14 under the Mentawai Islands of West Sumatra. The human consequences of such an event depend crucially on its tsunamigenic 15 potential, which in turn depends on unpredictable details of slip distribution on the megathrust and how resulting seafloor 16 movements and the propagating tsunami waves interact with bathymetry. Here we address the forward problem by modelling about 17 1000 possible complex earthquake ruptures and calculating the seafloor displacements and tsunami wave height distributions that 18 would result from the most likely 100 or so, as judged by reference to paleogeodetic data. Additionally we carry out a systematic 19 study of the importance of the location of maximum slip with respect to the morphology of the fore-arc complex. Our results 20 indicate a generally smaller regional tsunami hazard than was realised in Aceh during the December 2004 event, though more than 21 20% of simulations result in tsunami wave heights of more than 5 m for the southern Sumatran cities of Padang and Bengkulu. The 22 extreme events in these simulations produce results which are consistent with recent deterministic studies. The study confirms the 23 sensitivity of predicted wave heights to the distribution of slip even for events with similar moment and reproduces Plafker's rule of 24 thumb. Additionally we show that the maximum wave height observed at a single location scales with the magnitude though data 25 for all magnitudes exhibit extreme variability. Finally, we show that for any coastal location in the near field of the earthquake, 26 despite the complexity of the earthquake rupture simulations and the large range of magnitudes modelled, the timing of inundation 27 is constant to first order and the maximum height of the modelled waves is directly proportional to the vertical coseismic 28 displacement experienced at that point. These results may assist in developing tsunami preparedness strategies around the Indian 29 Ocean and in particular along the coasts of western Sumatra.
    Beschreibung: In press
    Beschreibung: 3.1. Fisica dei terremoti
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): tsunami ; Sumatra ; megathrust ; earthquake ; hazard ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: manuscript
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 5
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    Unbekannt
    Tsunami threat in the Indian Ocean from a future megathrust earthquake west of Sumatra (2008)
    Elsevier B.V.
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: Several independent indicators imply a high probability of a great (M 〉 8) earthquake rupture of the subduction megathrust under the Mentawai Islands of West Sumatra. The human consequences of such an event depend crucially on its tsunamigenic potential, which in turn depends on unpredictable details of slip distribution on the megathrust and how resulting seafloor movements and the propagating tsunami waves interact with bathymetry. Here we address the forward problem by modelling about 1000 possible complex earthquake ruptures and calculating the seafloor displacements and tsunami wave height distributions that would result from the most likely 100 or so, as judged by reference to paleogeodetic data. Additionally we carry out a systematic study of the importance of the location of maximum slip with respect to the morphology of the fore-arc complex. Our results indicate a generally smaller regional tsunami hazard than was realised in Aceh during the December 2004 event, though more than 20% of simulations result in tsunami wave heights of more than 5 m for the southern Sumatran cities of Padang and Bengkulu. The extreme events in these simulations produce results which are consistent with recent deterministic studies. The study confirms the sensitivity of predicted wave heights to the distribution of slip even for events with similar moment and reproduces Plafker's rule of thumb. Additionally we show that the maximum wave height observed at a single location scales with the magnitude though data for all magnitudes exhibit extreme variability. Finally, we show that for any coastal location in the near field of the earthquake, despite the complexity of the earthquake rupture simulations and the large range of magnitudes modelled, the timing of inundation is constant to first order and the maximum height of the modelled waves is directly proportional to the vertical coseismic displacement experienced at that point. These results may assist in developing tsunami preparedness strategies around the Indian Ocean and in particular along the coasts of western Sumatra.
    Beschreibung: Published
    Beschreibung: 61-81
    Beschreibung: 4.2. TTC - Scenari e mappe di pericolosità sismica
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): tsunami ; Sumatra ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 6
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    Coseismic deformation and source modeling of the May 2012 Emilia (Northern Italy) earthquakes (2013)
    Seismological Society of America
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: On May 20th, 2012, an ML 5.9 earthquake (Table 1) occurred near the town of Finale Emilia, in the Central Po Plain, Northern Italy (Figure 1). The mainshock caused 7 casualties and the collapse of several historical buildings and industrial sheds. The earthquake sequence continued with diminishing aftershock magnitudes until May 29th, when an ML 5.8 earthquake occurred near the town of Mirandola, ~12 km WSW of the mainshock (Scognamiglio et al., 2012). This second mainshock started a new aftershock sequence in this area, and increased structural damage and collapses, causing 19 more casualties and increasing to 15.000 the number of evacuees. Shortly after the first mainshock, the Department of Civil Protection (DPC) activated the Italian Space Agency (ASI), which provided post-seismic SAR Interferometry data coverage with all 4 COSMO-SkyMed SAR satellites. Within the next two weeks, several SAR Interferometry (InSAR) image pairs were processed by the INGV-SIGRIS system (Salvi et al., 2012), to generate displacement maps and preliminary source models for the emergency management. These results included continuous GPS site displacement data, from private and public sources, located in and around the epicentral area. In this paper we present the results of the geodetic data modeling, identifying two main fault planes for the Emilia seismic sequence and computing the corresponding slip distributions. We discuss the implication of this seismic sequence on the activity of the frontal part of the Northern Apennine accretionary wedge by comparing the co-seismic data with the long term (geological) and present day (GPS) velocity fields.
    Beschreibung: Published
    Beschreibung: 645-655
    Beschreibung: 1.1. TTC - Monitoraggio sismico del territorio nazionale
    Beschreibung: 1.9. Rete GPS nazionale
    Beschreibung: 1.10. TTC - Telerilevamento
    Beschreibung: 3.2. Tettonica attiva
    Beschreibung: JCR Journal
    Beschreibung: restricted
    Schlagwort(e): Earthquake ; CFF analysis ; Tectonic ; geodynamic ; Seismic source ; Northern apennine (Italy) ; 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution ; 04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk ; 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics ; 05. General::05.01. Computational geophysics::05.01.01. Data processing ; 05. General::05.02. Data dissemination::05.02.02. Seismological data
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 7
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    Unbekannt
    La sequenza sismica nel Montefeltro (Forlì - Cesena): l’intervento della rete sismica mobile (2011)
    Istituto Nazionale di Geofisica e Vulcanologia
    Details
    Publikationsdatum: 2021-11-09
    Beschreibung: Il 24 maggio 2011, alle 12.40 UTC, la Rete Sismica Nazionale (RSN) dell’Istituto Nazionale di Geofisica e Vulcanologia (INGV) ha registrato un evento sismico di magnitudo (ML) 3.1 nel distretto sismico1 [Selvaggi et al., 1996] del Montefeltro (in provincia di Forlì-Cesena). Nelle successive due settimane sono stati localizzati dalla Sala di Sorveglianza Sismica della sede romana dell’INGV oltre 600 eventi di cui 13 di ML ≥ 3.0. Otto di questi eventi più energetici sono accaduti entro le prime 16 ore dalla prima scossa. L’evento di maggiore energia si è verificato la notte tra il 24 e il 25 maggio (ore 22.03 UTC del 24 maggio) con una magnitudo pari a ML 3.7 (Tabella 1). Considerando la peculiare evoluzione della sequenza nelle prime 24 ore dal primo evento, la prossimità dell'area epicentrale all’Alta Val Tiberina (AVT nel seguito) dove è attualmente in corso un esperimento sismico passivo [Progetto NOVAT2; Cattaneo et al., 2011; D’Alema et al., 2011] e l’apprensione che stava diffondendosi tra la popolazione, è stato ritenuto opportuno attivare le procedure di risposta ad una emergenza sismica e predisporre un intervento volto a migliorare la copertura strumentale dell'area. Il 25 maggio, in accordo con i colleghi INGV della Sezione di Pisa, dell’Osservatorio di Arezzo [Braun, 2006], della sede di Ancona e della Fondazione Prato Ricerche3, si è proceduto con l'istallazione di una rete sismica temporanea ad integrazione delle stazioni permanenti già presenti in zona. Nella giornata del 27 maggio, due delle stazioni temporanee sono state predisposte per la trasmissione in tempo reale alla Sala di Sorveglianza Sismica di Roma dei dati acquisiti, per migliorare la precisione delle localizzazioni prodotte. Nel contempo, sono stati curati dei comunicati informativi divulgati attraverso il sito web4 dell’Ente, parzialmente inclusi in questo lavoro, per dare una risposta alla popolazione interessata dalla sequenza e fortemente preoccupata dall’intensificarsi della sismicità. Il presente lavoro, la cui redazione è stata completata mentre la sequenza è ancora in corso, vuole essenzialmente descrivere le procedure che vengono attivate all’INGV in risposta ad una emergenza sismica e fornire uno strumento tecnico di supporto alla successiva elaborazione della base dati raccolta nel corso dell'esperimento. Viene quindi presentata una breve introduzione sulle conoscenze sismologiche dell’area interessata dalla sequenza, vengono descritti i comunicati emessi dall’INGV per informare i cittadini e viene descritto l’intervento della rete sismica temporanea, ovvero la tempistica dell'istallazione, la strumentazione utilizzata, e i siti occupati.
    Beschreibung: Published
    Beschreibung: 1-17
    Beschreibung: 1.1. TTC - Monitoraggio sismico del territorio nazionale
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): Seismic Monitoring ; Emergency ; 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
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