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Abstract:
In this article, we describe the infrastructure developed and managed by the Italian
National Institute of Oceanography and Applied Geophysics – OGS for the seismological
and geodetic monitoring of northeastern Italy. The infrastructure was constituted in
response to the ML 6.4 Friuli destructive earthquake of 1976, with the main mandate
of supporting civil protection emergency activities.
The OGS monitoring infrastructure is presently composed of a seismometric and a
strong-motion network, complemented by a number of Global Navigation Satellite
Systems stations, each delivering observational data in real time, which are collected
and processed by the headquarters of the Center for Seismological Research of OGS in
Udine. The OGS networks operate in close cooperation with Italian and international
networks from neighboring countries, within the framework of the agreements for
real-time data exchange, to obtain improved rapid earthquake location and magnitude
estimations. Information regarding seismic events is released to the public through a
dedicated web portal and, since 2013, through social media.
Aside from the standard monitoring activities ( > 30;000 events have been recorded
since 1976), the OGS has progressively increased the number of services to the public
and to the Civil Protection of the Friuli Venezia Giulia and Veneto regions. The high
availability of good quality data has resulted in the enhancement of scientific products,
including advanced seismological studies of the area, spanning broadly from seismic
source characterization to engineering seismology.
In the future, the OGS networks are expected to further contribute to the development
of seismological research and monitoring infrastructures of the Central European region.
