Improving earthquake hazard assessments in Italy: An alternative to “Texas sharpshooting”

Authors

  • Antonella Peresan,

    1. Department of Mathematics and Geosciences, University of Trieste, Trieste, Italy
    2. The Abdus Salam International Centre for Theoretical Physics–Structure and Non-linear Dynamics of the Earth Group (ICTP-SAND), Trieste, Italy
    Search for more papers by this author
  • Giuliano F. Panza

    1. Department of Mathematics and Geosciences, University of Trieste; ICTP-SAND, and Institute of Geophysics, China Earthquake Administration, Beijing, China
    Search for more papers by this author

Abstract

The 20 May 2012 M = 6.1 earthquake that struck the Emilia region of northern Italy illustrates a common problem afflicting earthquake hazard assessment. It occurred in an area classified as “low seismic hazard” based on the current national seismic hazard map (Gruppo di Lavoro, Redazione della mappa di pericolosità sismica, rapporto conclusivo, 2004, http://zonesismiche.mi.ingv.it/mappa_ps_apr04/italia.html) adopted in 2006. That revision of the seismic code was motivated by the 2002 M = 5.7 earthquake that struck S. Giuliano di Puglia in central Italy, also a previously classified low-hazard area, resulting in damage and casualties. Previous code was updated in 1981–1984 after earlier maps missed the 1980 M = 6.5 Irpinia earthquake.

Ancillary

Advertisement