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Weber, E.
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- PublicationRestrictedDevelopment and Testing of an Advanced Monitoring Infrastructure (ISNet) for Seismic Early-warning Applications in the Campania Region of Southern Italy(2007)
; ; ; ; ; ; ; ; ; ; ; ; ; ;Weber, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Iannaccone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Zollo, A.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Bobbio, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Cantore, L.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Corciulo, M.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Convertito, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Di Crosta, M.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Elia, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Emolo, A.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Martino, C.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Romeo, A.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli ;Satriano, C.; Dipartimento di Scienze Fisiche – Università degli Studi di Napoli; ; ; ; ; ; ; ; ; ; ; ; ; ; Gasparini, P.In the framework of an ongoing project financed by the Campania Region, a prototype system for seismic early and post-event warning is being developed and tested, based on a dense, wide dynamic seismic network (ISNet) and under installation in the Apennine belt region. This paper reports the characteristics of the seismic network, focussing on the required technological innovation of the different seismic network components (data-logger, sensors and data communication). To ensure a highly dynamic recording range, each station is equipped with two types of sensors: a strong-motion accelerometer and a velocimeter. Data acquisition at the seismic stations is performed using Osiris-6 model data-loggers made by Agecodagis. Each station is supplied with two (120 W) solar panels and two 130 Ah gel cell batteries, ensuring 72-h autonomy for the seismic and radio communication equipment. The site is also equipped with a GSM/GPRS programmable control/alarm system connected to several environmental sensors (door forcing, solar panel controller, battery, fire, etc) and through which the site status is known in real time. The data are stored locally on the hard-disk and, at the same time, continuously transmitted by the SeedLink protocol to local acquisition/analysis nodes (Local Control Center) via Wireless LAN bridge. At each LCC site runs a linux Earthworm system which stores and manages the acquired data stream. The real-time analysis system will perform event detection and localization based on triggers coming from data-loggers and parametric information coming from the other LCCs. Once an event is detected, the system will performs automatic magnitude and focal mechanism estimations. In the immediate post-event period, the RISSC performs shaking map calculations using parameters from the LCCs and/or data from the event database. The recorded earthquake data are stored into an event database, to be available for distribution and visualization for further off-line analyses. The seismic network will be completed in two stages: • Deployment of 30 seismic stations along the southern Apennine chain (to date almost completed) • Setting up a carrier-class radio communication system for fast and reliable data transmission, and installation of 10 additional seismic stations.240 70 - PublicationRestrictedOverview of the earthquake earlywarning system development in Southern Italy(Doppiavoce, 2010)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Iannaccone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Zollo, A.; Dipartimento di Scienze Fisiche Università degli Studi di Napoli Federico II Napoli, Italy ;Bobbio, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Cantore, L.; Dipartimento di Scienze Fisiche Università degli Studi di Napoli Federico II Napoli, Italy ;Convertito, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Corciulo, M.; Dipartimento di Scienze Fisiche Università degli Studi di Napoli Federico II Napoli, Italy ;Di Crosta, M.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Elia, L.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Emolo, A.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Festa, G.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Iervolino, L.; Dip. Ingegneria Strutturale, Univesità di Napoli, Federico II ;Lancieri, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Martino, C.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Satriano, C.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Sorrentino, S.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Stabile, T. A.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Vassallo, M.; Univesità di Napoli, Federico II, Dip. Scienze Fisiche ;Weber, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Iannaccone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Zollo, A.; Università di Napoli, Federico II, Dip. Scienze Fisiche; XXXX231 26 - PublicationRestrictedAn advanced seismic network in the Southern Apennines (Italy) for seismicity investigations and experimentation with earthquake early warning.(2007-11)
; ; ; ; ; ; ; ; ; ; ; ; ;Weber, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Convertito, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Iannaccone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Zollo, A.; Università di Napoli Federico II - Dipartimento Scienze Fisiche ;Bobbio, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Cantore, L.; Università di Napoli Federico II - Dipartimento Scienze Fisiche ;Corciulo, M.; Università di Napoli Federico II - Dipartimento Scienze Fisiche ;Di Crosta, M.; AMRA scarl, Napoli, Italia ;Elia, L.; AMRA scarl, Napoli, Italia ;Martino, C.; AMRA scarl, Napoli, Italia ;Romeo, A.; AMRA scarl, Napoli, Italia ;Satriano, C.; Università di Napoli Federico II - Dipartimento Scienze Fisiche; ; ; ; ; ; ; ; ; ; ; The last strong earthquake that occurred in the southern Apennines, the Irpinia earthquake on 23 November 1980 (M 6.9), was characterized by a complex rupture mechanism that ruptured three different faults (Bernard and Zollo 1989). This earthquake was well studied, and the quantity of data available has allowed a very detailed definition of the geometry and mechanisms of faults activated during this seismic event (Westaway and Jackson 1987; Pantosti and Valensise 1990). Even more than 20 years after the main event, the seismotectonic environment that contains the fault system on which the 1980 earthquake occurred shows continued background seismic activity including moderate-sized events such as the 1996 (M 5.1), 1991 (M 5.1) and 1990 (M 5.4) events. Moreover, the locations of the microearthquakes (taken from the database of the Istituto Nazionale di Geofisica e Vulcanologia, INGV) define an epicentral area with a geometry and extent surprisingly similar to that of the 1980 earthquake and its aftershocks (figure 1A). These simple observations suggest that it may be possible to study the preparation cycles of strong earthquakes on active faults by studying the microseismicity between seismic events. With this in mind, a seismic network of large dynamic range was planned and is now in an advanced phase of completion in the southern Apennines. Called ISNet (Irpinia Seismic Network), it is equipped with sensors that can record high-quality seismic signals from both small-magnitude and strong earthquakes, from which it will be possible to retrieve information about the rupture process and try to understand the scaling relationships between small and large events. Due to its high density, wide dynamic range, and advanced data-acquisition and data-transmission technologies, the network is being upgraded to become the core infrastructure of a prototype system for seismic early warning and rapid post-event ground-shaking evaluation in the Campania region, which has seismic hazard that ranks among the highest in Italy (Cinti et al. 2004). ISNet will be devoted to real-time estimation of earthquake location and magnitude and to measuring peak ground-motion parameters so as to provide rapid ground-shaking maps for the whole of the Campania region. The information provided by ISNet during the first seconds of a potentially damaging seismic event can be used to activate several types of security measures, such as the shutdown of critical systems and lifelines (Iervolino et al. 2006). The implementation of a modern seismic network involves many different research and technological aspects related to the development of sophisticated data management and processing. The communication systems need to rapidly generate useful, robust, and secure alert notifications. Here we provide a general technical and seismological overview of ISNet's complex architecture and implementation.621 38 - PublicationRestrictedThe Earthquake Early Warning System in Southern Italy(2009)
; ; ; ; ; ; ; ; ; ; ; ;Zollo, A.; Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” ;Iannaccone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Convertito, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Elia, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Iervolino, I.; Dipartimento di Ingegneria Strutturale, Università di Napoli “Federico II” ;Lancieri, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Lomax, A.; Alomax Scientific, Mouans-Sartoux, France ;Martino, C.; Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” ;Satriano, C.; Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” ;Weber, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Gasparini, P.; Dipartimento di Scienze Fisiche, Università di Napoli “Federico II”; ; ; ; ; ; ;; ; ; ; ; Meyers, R. A.Many regions in the world are affected by natural hazards such as earthquakes, tsunamis, volcanoes, floods, storms, landslides, etc., each of which can have devastating socio- economic impacts. Among these natural events, earthquakes, have been among the most recurrent and damaging hazards during last few decades, resulting in large numbers of casualties, and massive economic losses [30]. The problem of earthquake risk mitigation is faced using different approaches, depending upon the time scale being considered. Whilst over time scales of decades it is of utmost importance that land use regulations and building/ infrastructure codes are continuously updated and improved, for time scales of a few years, the main risk mitigation actions are at the level of information and education in order to increase individual and social community awareness about potentially damaging hazards. Over shorter time scales (months to hours), it would naturally be of great benefit to society as a whole if the capability to accurately predict the time, location and size of a potentially catastrophic natural event were available. However, due to the great complexity of the natural processes of concern, such predictions are currently not possible. On the other hand, on very short time scales (seconds to minutes), new strategies for earthquake risk mitigation are being conceived and are under development worldwide, based on real-time information about natural events that is provided by advanced monitoring infrastructures, denoted as “early warning systems”.219 49