Bulletin of Earthquake Engineering

, Volume 8, Issue 5, pp 1091–1104 | Cite as

A strong motion network in northern Italy: detection capabilities and first analysis

  • Paolo Augliera
  • Ezio D’Alema
  • Simone MarzoratiEmail author
  • Marco Massa
Original Research Paper


The necessity of a dense network in Northern Italy started from the lack of available data after the occurrence of the 24th November 2004, Ml 5.2, Salò earthquake. Since 2006, many efforts have been made by the INGV (Italian National Institute for Geophysic and Vulcanology), Department of Milano-Pavia (hereinafter INGV MI-PV), to improve the strong-motion monitoring of the Northern Italy regions. This activity led to the installation of a strong-motion network composed by 20 accelerometers, 4 coupled with 20-bits Lennartz Mars88 recorders, 12 coupled with 24-bits Reftek 130 recorders and 4 coupled with 24-bits Gaia2 recorders. The network allow us to reduce, in the area under study, the average inter-distances between strong-motion stations from about 40 km (at November 2004) to 15 km. At present the network includes nine 6-channels stations where velocity sensors work together the strong-motion ones. The data transmission is assured by modem-gsm, with the exception of four stations that send data in real time through a TCP/IP protocol. In order to evaluate different site responses, the stations have been installed both in free field and near (or inside) public buildings, located in the center of small villages. From June 2006 to December 2008 a dataset of 94 events with local magnitude range from 0.7 to 5.1 has been collected. An ad hoc data-processing system have been created in order to provide, after each recorded event, engineering parameters such as peak ground acceleration (PGA) and velocity (PGV), response spectra (SA and PSV), Arias and Housner intensities. Data dissemination is achieved through the web site, while the waveforms are distributed through the Italian strong motion database (


North Italy Strong motion station Data acquisition system Seismic networks 


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  1. Arias A (1970) A measure of earthquake intensity. In: Hansen R (eds) Seismic design of nuclear power plants. MIT press, CambridgeGoogle Scholar
  2. Augliera P, D’Alema E, Marzorati S, Massa M, De Gori P, Marchetti A (2006) Data set Garda 2004: elaborazione dati, installazione stazioni sismiche (2004 Garda dataset: data processing, installation of seismic stations), Convenzione ProCiv-INGV 2004–2006—Progetto DPC-S3: scenari di scuotimento in aree di interesse prioritario e/o strategico, DPC-S3: Deliverable12, DVD (in Italian)Google Scholar
  3. Burrato P, Poli ME, Vannoli P, Zanferrari A, Basili R, Galadini F (2008) Sources of Mw 5+ earthquakes in northeastern Italy and western Slovenia: an updated view based on geological and seismological evidence. Tectonophysics 453: 157–176CrossRefGoogle Scholar
  4. Brune JN (1970) Tectonic stress and the spectra of seismic shear waves from earthquakes. J Geophys Res 75: 4997–5009CrossRefGoogle Scholar
  5. Camassi R, Stucchi M (1996) NT4.1, un catalogo parametrico di terremoti di area italiana al di sopra della soglia del danno (a parametric catalogue of damaging earthquakes in the Italian area), CNR-GNDT, Zincotecnica Nuova, 66 ppGoogle Scholar
  6. Clinton JF (2004) Modern digital seismology: instrumentation, and small amplitude studies in the engineering world. Technical report: Caltech EERL-2004-10. Earthquake Engineering Research Laboratory, Pasadena, CAGoogle Scholar
  7. D’Alema E (2007) Stazioni accelerometriche con REFTEK-130/modem GSM: note tecniche sui softwares in ambiente Linux per la Rete Accelerometrica dell’Italia Settentrionale. Rapporti Tecnici INGV, 37, 24 pp. (in Italian)Google Scholar
  8. D’Alema E, Marzorati S (2004) Metodologie per l’installazione e la gestione delle stazioni sismiche Mars88 modem control, Rapporti Tecnici INGV, 21, 32 pp (in Italian)Google Scholar
  9. Delladio A, Amato A, Badiali L, Cattaneo M, Doumaz F, Mele F (2006) The real-time earthquake monitoring system in Italy. Géosciences 4: 70–75Google Scholar
  10. Galadini F, Poli ME, Zanferrari A (2005) Seismogenetic sources potentially responsible for earthquake M > 6 in the eastern Southern Alps (Thiene-Udine sector, NE Italy). Geophys J Int 161: 739–762CrossRefGoogle Scholar
  11. Galadini F, Galli P, Molin D, Ciurletti D (2001) Searching for the seismogenic source of the 1117 earthquake in northern Italy: a multidisciplinary approach. In: Glade T, Albini P, Frances F (eds) The use of historical data in natural hazards assessment. Kluwer, Dordrecht, pp 3–27Google Scholar
  12. Gruppo di Lavoro (2004) Redazione della mappa di pericolosità sismica prevista dall’ordinanza PCM 3274 del 20 Marzo 2003, Rapporto conclusivo per il Dipartimento della Protezione Civile, INGV, Milano-Roma, 65 pp (in Italian)Google Scholar
  13. Gruppo di Lavoro CPTI (2004) Catalogo Parametrico dei Terremoti Italiani, versione 2004 (CPTI04), INGV, Bologna,
  14. Guidoboni E, Comastri A, Boschi E (2005) The “exceptional” earthquake of 3 January 1117 in Verona area (northern Italy): a critical time review and detection of two lost earthquakes (Lower Germany and Tuscany). J Geophys Res 110: B12309CrossRefGoogle Scholar
  15. Guidoboni E (1986) The earthquake of December 25, 1222: analysis of a myth. In: Cotecchia V (ed) Engineering geology problems in seismic areas. vol III, Bari 1986, pp. 413–24Google Scholar
  16. Havskov J, Alguacil G (2004) Instrumentation in earthquake seismology. Springer, The Netherlands, p 337Google Scholar
  17. Housner GW (1952) Spectrum intensities of strong-motion earthquakes. In: Feigen CM (eds) Proceedings symposium on earthquake and blast effects structures. University of California, Los Angeles, pp 21–36Google Scholar
  18. Konno K, Ohmachi T (1998) Ground-motion characteristics estimated from spectral ratio between horizontal and vertical components of microtremors. Bull Seism Soc Am 88: 228–241Google Scholar
  19. Luzi L, Hailemikael S, Bindi D, Pacor F, Mele F (2008) ITACA (ITalian ACcelerometric Archive): a web portal for the dissemination of Italian strong motion data. Seism Res Lett Doi: 10.1785/gssrl.79.5
  20. Marzorati S, Bindi D (2006) Ambient noise levels in North-central Italy. Geochem Geophys Geosyst 7: Q09010CrossRefGoogle Scholar
  21. Massa M, Marzorati S, Ladina C, Lovati S (2009) Urban seismic stations: soil-structure interaction assessment by spectral ratio analyses. Bull Earthq Eng (preliminary accepted)Google Scholar
  22. Massa M, Marzorati S, D’Alema E, Di Giacomo D, Augliera P (2007) Site classification assessment for estimating empirical attenuation relationships for central-northern earthquakes. J Earthq Eng 11: 943–967Google Scholar
  23. Mcnamara DE, Buland RP (2004) Ambient noise levels in continental United States. Bull Seism Soc Am 94: 1517–1527CrossRefGoogle Scholar
  24. Peterson J (1993) Observation and modeling of background seismic noise. Open File Report 93-322, USGS, Albuquerque, New MexicoGoogle Scholar
  25. Trnkoczy A, Bormann P, Hanka W, Holcomb LG, Nigbor RL (2002) Site selection, preparation and installation of seismic station. In: Bormann P (ed) IASPEI new manual of seismological observatory practice (NMSOP), vol 1, chap 7, pp 1–108Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Paolo Augliera
    • 1
  • Ezio D’Alema
    • 1
  • Simone Marzorati
    • 1
    Email author
  • Marco Massa
    • 1
  1. 1.Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-PaviaMilanItaly

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